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Waterfiltration Photo Manuel Darío Fuentes Hernández , Pixabay
10.11.2024

New filtration material could remove long-lasting chemicals from water

Membranes based on natural silk and cellulose can remove many contaminants, including “forever chemicals” and heavy metals.

Water contamination by the chemicals used in today’s technology is a rapidly growing problem globally. A recent study by the U.S. Centers for Disease Control found that 98 percent of people tested had detectable levels of PFAS, a family of particularly long-lasting compounds also known as “forever chemicals,” in their bloodstream.

A new filtration material developed by researchers at MIT might provide a nature-based solution to this stubborn contamination issue. The material, based on natural silk and cellulose, can remove a wide variety of these persistent chemicals as well as heavy metals. And, its antimicrobial properties can help keep the filters from fouling.

Membranes based on natural silk and cellulose can remove many contaminants, including “forever chemicals” and heavy metals.

Water contamination by the chemicals used in today’s technology is a rapidly growing problem globally. A recent study by the U.S. Centers for Disease Control found that 98 percent of people tested had detectable levels of PFAS, a family of particularly long-lasting compounds also known as “forever chemicals,” in their bloodstream.

A new filtration material developed by researchers at MIT might provide a nature-based solution to this stubborn contamination issue. The material, based on natural silk and cellulose, can remove a wide variety of these persistent chemicals as well as heavy metals. And, its antimicrobial properties can help keep the filters from fouling.

The findings are described in the journal ACS Nano, in a paper by MIT postdoc Yilin Zhang, professor of civil and environmental engineering Benedetto Marelli, and four others from MIT.

PFAS chemicals are present in a wide range of products, including cosmetics, food packaging, water-resistant clothing, firefighting foams, and antistick coating for cookware. A recent study identified 57,000 sites contaminated by these chemicals in the U.S. alone. The U.S. Environmental Protection Agency has estimated that PFAS remediation will cost $1.5 billion per year, in order to meet new regulations that call for limiting the compound to less than 7 parts per trillion in drinking water.

Contamination by PFAS and similar compounds “is actually a very big deal, and current solutions may only partially resolve this problem very efficiently or economically,” Zhang says. “That’s why we came up with this protein and cellulose-based, fully natural solution,” he says.

“We came to the project by chance,” Marelli notes. The initial technology that made the filtration material possible was developed by his group for a completely unrelated purpose — as a way to make a labelling system to counter the spread of counterfeit seeds, which are often of inferior quality. His team devised a way of processing silk proteins into uniform nanoscale crystals, or “nanofibrils,” through an environmentally benign, water-based drop-casting method at room temperature.

Zhang suggested that their new nanofibrillar material might be effective at filtering contaminants, but initial attempts with the silk nanofibrils alone didn’t work. The team decided to try adding another material: cellulose, which is abundantly available and can be obtained from agricultural wood pulp waste. The researchers used a self-assembly method in which the silk fibroin protein is suspended in water and then templated into nanofibrils by inserting “seeds” of cellulose nanocrystals. This causes the previously disordered silk molecules to line up together along the seeds, forming the basis of a hybrid material with distinct new properties.

By integrating cellulose into the silk-based fibrils that could be formed into a thin membrane, and then tuning the electrical charge of the cellulose, the researchers produced a material that was highly effective at removing contaminants in lab tests.

The electrical charge of the cellulose, they found, also gave it strong antimicrobial properties. This is a significant advantage, since one of the primary causes of failure in filtration membranes is fouling by bacteria and fungi. The antimicrobial properties of this material should greatly reduce that fouling issue, the researchers say.

“These materials can really compete with the current standard materials in water filtration when it comes to extracting metal ions and these emerging contaminants, and they can also outperform some of them currently,” Marelli says. In lab tests, the materials were able to extract orders of magnitude more of the contaminants from water than the currently used standard materials, activated carbon or granular activated carbon.

While the new work serves as a proof of principle, Marelli says, the team plans to continue working on improving the material, especially in terms of durability and availability of source materials. While the silk proteins used can be available as a byproduct of the silk textile industry, if this material were to be scaled up to address the global needs for water filtration, the supply might be insufficient. Also, alternative protein materials may turn out to perform the same function at lower cost.

Initially, the material would likely be used as a point-of-use filter, something that could be attached to a kitchen faucet, Zhang says. Eventually, it could be scaled up to provide filtration for municipal water supplies, but only after testing demonstrates that this would not pose any risk of introducing any contamination into the water supply. But one big advantage of the material, he says, is that both the silk and the cellulose constituents are considered food-grade substances, so any contamination is unlikely.

“Most of the normal materials available today are focusing on one class of contaminants or solving single problems,” Zhang says. “I think we are among the first to address all of these simultaneously.”

“What I love about this approach is that it is using only naturally grown materials like silk and cellulose to fight pollution,” says Hannes Schniepp, professor of applied science at the College of William and Mary, who was not associated with this work. “In competing approaches, synthetic materials are used — which usually require only more chemistry to fight some of the adverse outcomes that chemistry has produced. [This work] breaks this cycle! ... If this can be mass-produced in an economically viable way, this could really have a major impact.”

The research team included MIT postdocs Hui Sun and Meng Li, graduate student Maxwell Kalinowski, and recent graduate Yunteng Cao PhD ’22, now a postdoc at Yale University. The work was supported by the U.S. Office of Naval Research, the U.S. National Science Foundation, and the Singapore-MIT Alliance for Research and Technology.

Image: MIT News; iStock
12.08.2024

Creating quiet spaces with sound-suppressing silk

Researchers engineered a hair-thin fabric to create a lightweight, compact, and efficient mechanism to reduce noise transmission in a large room.

We are living in a very noisy world. From the hum of traffic outside your window to the next-door neighbor’s blaring TV to sounds from a co-worker’s cubicle, unwanted noise remains a resounding problem.

To cut through the din, an interdisciplinary collaboration of researchers from MIT and elsewhere developed a sound-suppressing silk fabric that could be used to create quiet spaces.

The fabric, which is barely thicker than a human hair, contains a special fiber that vibrates when a voltage is applied to it. The researchers leveraged those vibrations to suppress sound in two different ways.

Researchers engineered a hair-thin fabric to create a lightweight, compact, and efficient mechanism to reduce noise transmission in a large room.

We are living in a very noisy world. From the hum of traffic outside your window to the next-door neighbor’s blaring TV to sounds from a co-worker’s cubicle, unwanted noise remains a resounding problem.

To cut through the din, an interdisciplinary collaboration of researchers from MIT and elsewhere developed a sound-suppressing silk fabric that could be used to create quiet spaces.

The fabric, which is barely thicker than a human hair, contains a special fiber that vibrates when a voltage is applied to it. The researchers leveraged those vibrations to suppress sound in two different ways.

In one, the vibrating fabric generates sound waves that interfere with an unwanted noise to cancel it out, similar to noise-canceling headphones, which work well in a small space like your ears but do not work in large enclosures like rooms or planes.

In the other, more surprising technique, the fabric is held still to suppress vibrations that are key to the transmission of sound. This prevents noise from being transmitted through the fabric and quiets the volume beyond. This second approach allows for noise reduction in much larger spaces like rooms or cars.

By using common materials like silk, canvas, and muslin, the researchers created noise-suppressing fabrics which would be practical to implement in real-world spaces. For instance, one could use such a fabric to make dividers in open workspaces or thin fabric walls that prevent sound from getting through.

The fabric can suppress sound by generating sound waves that interfere with an unwanted noise to cancel it out (as seen in figure C) or by being held still to suppress vibrations that are key to the transmission of sound (as seen in figure D).

“Noise is a lot easier to create than quiet. In fact, to keep noise out we dedicate a lot of space to thick walls. [First author] Grace’s work provides a new mechanism for creating quiet spaces with a thin sheet of fabric,” says Yoel Fink, a professor in the departments of Materials Science and Engineering and Electrical Engineering and Computer Science, a Research Laboratory of Electronics principal investigator, and senior author of a paper on the fabric.

Silky silence
The sound-suppressing silk builds off the group’s prior work to create fabric microphones.

In that research, they sewed a single strand of piezoelectric fiber into fabric. Piezoelectric materials produce an electrical signal when squeezed or bent. When a nearby noise causes the fabric to vibrate, the piezoelectric fiber converts those vibrations into an electrical signal, which can capture the sound.

In the new work, the researchers flipped that idea to create a fabric loudspeaker that can be used to cancel out soundwaves.

“While we can use fabric to create sound, there is already so much noise in our world. We thought creating silence could be even more valuable,” Yang says.

Applying an electrical signal to the piezoelectric fiber causes it to vibrate, which generates sound. The researchers demonstrated this by playing Bach’s “Air” using a 130-micrometer sheet of silk mounted on a circular frame.

To enable direct sound suppression, the researchers use a silk fabric loudspeaker to emit sound waves that destructively interfere with unwanted sound waves. They control the vibrations of the piezoelectric fiber so that sound waves emitted by the fabric are opposite of unwanted sound waves that strike the fabric, which can cancel out the noise.

However, this technique is only effective over a small area. So, the researchers built off this idea to develop a technique that uses fabric vibrations to suppress sound in much larger areas, like a bedroom.

Let’s say your next-door neighbors are playing foosball in the middle of the night. You hear noise in your bedroom because the sound in their apartment causes your shared wall to vibrate, which forms sound waves on your side.

To suppress that sound, the researchers could place the silk fabric onto your side of the shared wall, controlling the vibrations in the fiber to force the fabric to remain still. This vibration-mediated suppression prevents sound from being transmitted through the fabric.

“If we can control those vibrations and stop them from happening, we can stop the noise that is generated, as well,” Yang says.

A mirror for sound
Surprisingly, the researchers found that holding the fabric still causes sound to be reflected by the fabric, resulting in a thin piece of silk that reflects sound like a mirror does with light.

Their experiments also revealed that both the mechanical properties of a fabric and the size of its pores affect the efficiency of sound generation. While silk and muslin have similar mechanical properties, the smaller pore sizes of silk make it a better fabric loudspeaker.

But the effective pore size also depends on the frequency of sound waves. If the frequency is low enough, even a fabric with relatively large pores could function effectively, Yang says.

When they tested the silk fabric in direct suppression mode, the researchers found that it could significantly reduce the volume of sounds up to 65 decibels (about as loud as enthusiastic human conversation). In vibration-mediated suppression mode, the fabric could reduce sound transmission up to 75 percent.

These results were only possible due to a robust group of collaborators, Fink says. Graduate students at the Rhode Island School of Design helped the researchers understand the details of constructing fabrics; scientists at the University of Wisconsin at Madison conducted simulations; researchers at Case Western Reserve University characterized materials; and chemical engineers in the Smith Group at MIT used their expertise in gas membrane separation to measure airflow through the fabric.

Moving forward, the researchers want to explore the use of their fabric to block sound of multiple frequencies. This would likely require complex signal processing and additional electronics.

In addition, they want to further study the architecture of the fabric to see how changing things like the number of piezoelectric fibers, the direction in which they are sewn, or the applied voltages could improve performance.

“There are a lot of knobs we can turn to make this sound-suppressing fabric really effective. We want to get people thinking about controlling structural vibrations to suppress sound. This is just the beginning,” says Yang.

This work is funded, in part, by the National Science Foundation (NSF), the Army Research Office (ARO), the Defense Threat Reduction Agency (DTRA), and the Wisconsin Alumni Research Foundation.

Source:

Adam Zewe | MIT News

Empa researcher Simon Annaheim is working to develop a mattress for newborn babies. Image: Empa
11.03.2024

Medical textiles and sensors: Smart protection for delicate skin

Skin injuries caused by prolonged pressure often occur in people who are unable to change their position independently – such as sick newborns in hospitals or elderly people. Thanks to successful partnerships with industry and research, Empa scientists are now launching two smart solutions for pressure sores.

If too much pressure is applied to our skin over a long period of time, it becomes damaged. Populations at high risk of such pressure injuries include people in wheelchairs, newborns in intensive care units and the elderly. The consequences are wounds, infections and pain.

Skin injuries caused by prolonged pressure often occur in people who are unable to change their position independently – such as sick newborns in hospitals or elderly people. Thanks to successful partnerships with industry and research, Empa scientists are now launching two smart solutions for pressure sores.

If too much pressure is applied to our skin over a long period of time, it becomes damaged. Populations at high risk of such pressure injuries include people in wheelchairs, newborns in intensive care units and the elderly. The consequences are wounds, infections and pain.

Treatment is complex and expensive: Healthcare costs of around 300 million Swiss francs are incurred every year. "In addition, existing illnesses can be exacerbated by such pressure injuries," says Empa researcher Simon Annaheim from the Biomimetic Membranes and Textiles laboratory in St. Gallen. According to Annaheim, it would be more sustainable to prevent tissue damage from occurring in the first place. Two current research projects involving Empa researchers are now advancing solutions: A pressure-equalizing mattress for newborns in intensive care units and a textile sensor system for paraplegics and bedridden people are being developed.

Optimally nestled at the start of life
The demands of our skin are completely different depending on age: In adults, the friction of the skin on the lying surface, physical shear forces in the tissue and the lack of breathability of textiles are the main risk factors. In contrast, the skin of newborns receiving intensive care is extremely sensitive per se, and any loss of fluid and heat through the skin can become a problem. "While these particularly vulnerable babies are being nursed back to health, the lying situation should not cause any additional complications," says Annaheim. He thinks conventional mattresses are not appropriate for newborns with very different weights and various illnesses. Annaheim's team is therefore working with researchers from ETH Zurich, the Zurich University of Applied Sciences (ZHAW) and the University Children's Hospital Zurich to find an optimal lying surface for babies' delicate skin. This mattress should be able to adapt individually to the body in order to help children with a difficult start in life.

In order to do this, the researchers first determined the pressure conditions in the various regions of the newborn's body. "Our pressure sensors showed that the head, shoulders and lower spine are the areas with the greatest risk of pressure sores," says Annaheim. These findings were incorporated into the development of a special kind of air-filled mattress: With the help of pressure sensors and a microprocessor, its three chambers can be filled precisely via an electronic pump so that the pressure in the respective areas is minimized. An infrared laser process developed at Empa made it possible to produce the mattress from a flexible, multi-layered polymer membrane that is gentle on the skin and has no irritating seams.

After a multi-stage development process in the laboratory, the first small patients were allowed to lie on the prototype mattress. The effect was immediately noticeable when the researchers filled the mattress with air to varying degrees depending on the individual needs of the babies: Compared to a conventional foam mattress, the prototype reduced the pressure on the vulnerable parts of the body by up to 40 percent.

Following this successful pilot study, the prototype is now being optimized in the Empa labs. Simon Annaheim and doctoral student Tino Jucker will soon be starting a larger-scale study with the new mattress with the Department of Intensive Care Medicine & Neonatology at University Children's Hospital Zurich.

Intelligent sensors prevent injuries
In another project, Empa researchers are working on preventing so-called pressure ulcer tissue damage in adults. This involves converting the risk factors of pressure and circulatory disorders into helpful warning signals.

If you lie in the same position for a long time, pressure and circulatory problems lead to an undersupply of oxygen to the tissue. While the lack of oxygen triggers a reflex to move in healthy people, this neurological feedback loop can be disrupted in people with paraplegia or coma patients, for example. Here, smart sensors can help to provide early warning of the risk of tissue damage.

In the ProTex project, a team of researchers from Empa, the University of Bern, the OST University of Applied Sciences and Bischoff Textil AG in St. Gallen has developed a sensor system made of smart textiles with associated data analysis in real time. "The skin-compatible textile sensors contain two different functional polymer fibers," says Luciano Boesel from Empa's Biomimetic Membranes and Textiles laboratory in St. Gallen. In addition to pressure-sensitive fibers, the researchers integrated light-conducting polymer fibers (POFs), which are used to measure oxygen. "As soon as the oxygen content in the skin drops, the highly sensitive sensor system signals an increasing risk of tissue damage," explains Boesel. The data is then transmitted directly to the patient or to the nursing staff. This means, for instance, that a lying person can be repositioned in good time before the tissue is damaged.

Patented technology
The technology behind this also includes a novel microfluidic wet spinning process developed at Empa for the production of POFs. It allows precise control of the polymer components in the micrometer range and smoother, more environmentally friendly processing of the fibers. The microfluidic process is one of three patents that have emerged from the ProTex project to date.

Another product is a breathable textile sensor that is worn directly on the skin. The spin-off Sensawear in Bern, which emerged from the project in 2023, is currently pushing ahead with the market launch. Empa researcher Boesel is also convinced: "The findings and technologies from ProTex will enable further applications in the field of wearable sensor technology and smart clothing in the future."

Source:

Dr. Andrea Six, Empa

Functional textiles – an alternative to antibiotics University of Borås
04.07.2023

Functional textiles – an alternative to antibiotics

Tuser Biswas conducts research that aims to develop modern medical textiles that are good for both the environment and human health. Textiles with antimicrobial properties could reduce the use of antibiotics.

Tuser Biswas conducts research that aims to develop modern medical textiles that are good for both the environment and human health. Textiles with antimicrobial properties could reduce the use of antibiotics.

His work involves research and teaching activities within the area of textile material technology. The current research involves resource-efficient inkjet printing of functional materials on various textile surfaces for advanced applications.
 
The conventional textile industry devours natural resources in the form of water, energy, and chemicals. A more resource-efficient way to produce textiles is with ink jet printing. Tuser Biswas, who recently defended his doctoral thesis in Textile Material Technology, seeks to develop methods for functional textiles. He has shown that it is possible to print enzymes on textiles. These are proteins that function as catalysts in the body, as they set chemical processes in motion without themselves changing. They could, for example, be used in medical textiles with antimicrobial properties or to measure biological or chemical reactions.

“Ever since the industrial revolution, our society has used an abundance of synthetic and harsh chemicals. Our research works to replace these chemicals with environmentally friendly and bio-based materials,” said Tuser Biswas.
 
Promising results with enzymes on textiles
Developing a good enzyme ink was not entirely easy and it took a number of attempts before he finally, to his great joy, had successful results. Tuser Biswas explained that the most important result is to show how a printed enzyme could bind another enzyme to the surface of a fabric. Although the activity of the enzymes decreased by 20-30 percent after printing, the results are still promising for future applications. At the same time, the work has provided new knowledge about many fundamental questions about printing biomaterials on fabric.

“Before starting the project, we found several related studies that focused on producing a finished product. But we wanted to study the fundamental challenges of this subject, and now we know how to make it work,” said Tuser Biswas.

He is now seeking funding to continue researching the subject and has so far received a grant from the Sjuhärad Savings Bank Foundation. During the Days of Knowledge event in April 2023, he presented his research to representatives from the City of Borås and business, the Sjuhärad Savings Bank Foundation, and the University of Borås.
     
Medical textiles instead of antibiotics
Tuser Biswas hopes that continued research in textile technology can provide alternatives to using antibiotics. With increasing antibiotic resistance, it is an important issue not only locally but worldwide.

“Instead of treating the patient with a course of antibiotics, one can act preventively and more effectively by damaging the bacteria on the surface where they start to grow. In a wound dressing, for example. Nanoparticle-based antimicrobials can reduce growth effectively. It is possible as nanoparticles can interact better with the bacterial membrane and reach the target more easily than conventional antimicrobials.”

Source:

Lina Färm. Translation by Eva Medin. University of Borås

Swijin Inage Swijin
20.06.2023

Innovative sportswear: Swim and run without changing

Just in time for summer: The Swiss start-up Swijin is launching a new sportswear category with its SwimRunner – a sports bra together with matching bottoms that works as both swimwear and running gear and dries in no time. The innovative product was developed together with Empa researchers in an Innosuisse project. The SwimRunner can be tested this weekend at the Zurich City Triathlon.
 
A quick dip after jogging without having to change clothes? Swijin (pronounced Swie-Djin), a new Swiss TechTex start-up, is launching its first product, the SwimRunner: a sports bra and bottoms that function as both swimwear and running gear and dry in a flash.

Just in time for summer: The Swiss start-up Swijin is launching a new sportswear category with its SwimRunner – a sports bra together with matching bottoms that works as both swimwear and running gear and dries in no time. The innovative product was developed together with Empa researchers in an Innosuisse project. The SwimRunner can be tested this weekend at the Zurich City Triathlon.
 
A quick dip after jogging without having to change clothes? Swijin (pronounced Swie-Djin), a new Swiss TechTex start-up, is launching its first product, the SwimRunner: a sports bra and bottoms that function as both swimwear and running gear and dry in a flash.

For the first time, this innovation enables women to make a smooth transition between land and water sports without having to change clothes. For example, hikers and runners can easily go into the water to cool off. Stand-up paddlers wearing the SwimRunner enjoy unrestricted freedom of movement and at the same time sufficient support, both on the board and in the water.
Science to boost sports performance
 
What appears to be a relatively simple requirement at first glance has turned out to be an extremely complex product to develop. As part of an Innosuisse project, Swijin collaborated with the Empa Biomimetic Membranes and Textiles laboratory in St. Gallen. Led by Empa engineer Martin Camenzind, the researchers first defined the requirements for the material and cut of the sports bra. "During development, we faced three main challenges: On the one hand, the product had to meet the requirements of a heavy-duty sports bra on land. At the same time, it had to maintain the compression of a swimsuit in the water – and do so with a very short drying time," says Camenzind.

Since no comparable garment exists on the market yet, the team also developed new tests for evaluating the high-performance textile. "Moreover, we designed a mannequin: a model of the female torso that can be used to measure the mechanical properties of bras," explains the researcher. In addition to scientific findings, the product development process also incorporated a great deal of expertise from sports physiologists, textile engineers, industry specialists, designers and, of course, female athletes.

Highest demands
Many of these athletes come from the swimrun scene. Swimrun is a fast-growing adventure sport that originated in the skerry gardens of Sweden. Unlike triathletes, who start out by swimming, then bike, and finally run, swimrunners switch back and forth between trail running and open water swimming throughout the race. The intensity of this sport provided Swijin with the optimal conditions for product development – and gave its name to the first collection, SwimRunner. "The feedback from female athletes was one of the deciding factors for the success of the product. They often swim and run for six to seven hours at a stretch. When they were satisfied with our prototypes, we knew: The SwimRunner is ready for market," says Swijin founder Claudia Glass.

The product idea first came to Claudia Glass while she was on vacation on Mallorca. During her morning runs, she longed to be able to take a quick dip in the sea. "Sports bras, however, are not designed for swimming," the founder explains. "They soak up the water and never seem to dry because of their thick compression material. Last summer, I wore the SwimRunner prototype all day. In the morning, I ran to Lake Zurich with my dog and jumped in. When I got back home, I could have just sat down at my desk and started working – I was completely dry and felt very comfortable."

Design and sustainability
The young company makes a point of combining engineering and design. Swijin's creative director, Valeria Cereda, is based in the center of the world's fashion capital, Milan, and infuses her experience with luxury brands into Swijin's aesthetic. But as a former competitive swimmer, she is also focused on functionality.

Swijin's high-performance products can only be realized with synthetic materials. The young company is determined to reduce the environmental impact of its products to a minimum. The tight supply chain keeps the CO2 footprint low. The materials of the SwimRunner are 100% made in the EU and designed for quality.

Traditional garment labels only provide information about where the garment was made. Swijin is working with supplier Avery Dennison to provide all products with a Digital Identity Label. This gives consumers detailed information about the entire value chain, right down to the textile manufacturer's investment in reducing its carbon footprint and the use of the water-based, solvent-free logo. Swijin packages all materials in Cradle-to-Cradle Gold certified packaging, which is produced by Voegeli AG in Emmental.

Furthermore, Swijin proactively addresses the challenges at the end of the product life cycle. In order to come one step closer to a truly circular economy for functional textiles, Swijin participates in the Yarn-to-Yarn® pilot project of Rheiazymes AG as a lighthouse partner. This biotech solution uses microorganisms and enzymes to generate new starting materials directly from used textiles in a climate-neutral way. When customers return end-of-life Swijin products – for which the company offers incentives – the high-quality monomers can be returned to the supply chain in their original quality: true circularity.

"As an emerging brand, we have both the obligation and the luxury of choosing partners whose vision and values align with our own," says Claudia Glass. "I had a clear understanding of what kind of brand I would buy, but I couldn't find it anywhere. With Swijin, we feel obligated to actually make our values a reality."

Source:

Claudia Glass, Anna Ettlin, EMPA

Fibroblasts (connective tissue cells) on the electrospun Renacer® membrane under the confocal microscope (red: cytoskeleton of the cells, blue: cell nuclei). (c) Fraunhofer-Institut für Silicatforschung ISC
02.05.2023

Bioresorbable membrane: depot for active substances

Fraunhofer researchers have succeeded in using the bioresorbable silica gel Renacer® to produce an electrospun membrane that is neither cytotoxic to cells nor genotoxic. This model mimics fibrous structures found in connective tissue and is therefore particularly suitable for regenerative applications, such as for improved wound healing.
 
The treatment of large as well as internal wounds is challenging and can be a very lengthy process. Researchers at the Fraunhofer Institute for Silicate Research ISC and the Fraunhofer Institute for Toxicology and Experimental Medicine ITEM have developed a bioresorbable membrane for this use. This membrane supports wound healing and biodegrades completely in the body to a natural substance.

Fraunhofer researchers have succeeded in using the bioresorbable silica gel Renacer® to produce an electrospun membrane that is neither cytotoxic to cells nor genotoxic. This model mimics fibrous structures found in connective tissue and is therefore particularly suitable for regenerative applications, such as for improved wound healing.
 
The treatment of large as well as internal wounds is challenging and can be a very lengthy process. Researchers at the Fraunhofer Institute for Silicate Research ISC and the Fraunhofer Institute for Toxicology and Experimental Medicine ITEM have developed a bioresorbable membrane for this use. This membrane supports wound healing and biodegrades completely in the body to a natural substance.

The basis for the novel membrane is a fiber fleece developed at Fraunhofer ISC. This fleece has already been approved as a medical device to support the regeneration of chronic wounds, such as the diabetic foot. During the healing process, the material dissolves completely within six to eight weeks. Using the electrospinning method, the researchers have now managed to reduce the 50-micrometer fiber diameter by a factor of more than 50, resulting in fibers with diameters of less than one micrometer (µm). This made it possible to spin a silica gel sol into an open-meshed silica gel membrane consisting of fibers with a diameter of about one µm. In some cases, the diameters achieved were as small as 100 nanometers. “These fiber systems imitate the extracellular matrix, the fiber structures found in connective tissue, in the body and are very well tolerated by human cells for tissue regeneration. They cause no foreign body reactions and no internal scarring. The innovative silica gel membrane releases only one degradation product, ortho-silicic acid. This has a regenerative effect on the tissue and promotes the closing of wounds,” explains Dr. Bastian Christ, a scientist at the Fraunhofer ISC in Würzburg. Together with his colleagues, he was in charge of the synthesis and processing of the material.
 
“While the original fiber fleece of 50 µm thick fibers is inserted into a chronic wound from the outside, the thinner fiber fleece is also suitable for internal use. Theoretically, it could be placed onto the filler material used for bone defects in the jaw to accelerate wound healing,” is how Dr. Christina Ziemann, research scientist at Fraunhofer ITEM responsible for the biological evaluation of the material, describes one of numerous possible applications. “In principle, the membrane can be glued in the body with biodegradable adhesives.

Material is neither cyto- nor genotoxic
Using a confocal microscope, a special light microscope, it was possible to show that the small-meshed membrane, which serves as a demonstrator, exhibits a barrier function. This prevents the passage of connective tissue cells for a period of at least seven days without interfering with cell proliferation. In addition, the membrane is resorbable, is not cyto- or genotoxic and thus causes no direct damage to tissue or DNA.

Fiber diameter and mesh size influence the behavior of the cells
A thin fiber diameter of 100 nanometers with thin meshes was chosen for use as an adhesion barrier to prevent postoperative adhesions and scarring. With this configuration, only nutrients could pass through the fiber fleece, but connective tissue cells could not. With a fiber diameter of one micrometer and correspondingly wider meshes, on the other hand, the cells grow into the fiber mesh, proliferate there and have a regenerating effect on the surrounding tissue. “By adjusting the material properties, such as fiber diameter and mesh size, it is possible to influence the behavior of the cells as desired,” says Christ. The equipment required for spinning the fibers is designed at Fraunhofer ISC to meet application and specific customer requirements. The shape and size of the fiber fleeces can also be adjusted to customer specifications.

Wounds only heal quickly and effectively if the wounded tissue is sufficiently supplied with nutrients. At the same time, metabolic products have to be removed. In contrast to many products on the market that allow nutrient transport only after biodegradation has started, the open-meshed Renacer® membrane promotes this transport directly after implantation, while not allowing cell passage.

Membrane with an inorganic character
There is another advantage: The Renacer® membrane dissolves completely into almost pH neutral non-toxic ortho-silicic acid, the only water-soluble form of silica. It is physiologically present in the body and has been shown to stimulate connective skin tissue formation and bone formation. Products currently available do not exhibit such bioactive properties. Many biodegradable materials dissolve into organic acids, such as lactic acid or glycolic acid. This can cause local acidification in the tissue, which then triggers inflammatory reactions of the immune system. “Our tests have shown that the dissolution product, ortho-silicic acid, is also non-toxic and completely biocompatible with cells,” says Ziemann. “The membrane decomposes into a single molecule – ortho-silicic acid.”

Fibers as a depot for active substances
Furthermore, drugs can be encapsulated into the matrix of the silica gel fibers, to be released during material resorption. “For example, antibiotics could be delivered into a wound after applying a drug-loaded Renacer® membrane to prevent the formation of bacterial colonies,” elaborates Christ. At Fraunhofer ISC, the BMBF-funded GlioGel project is testing whether the Renacer® material platform can be used as a depot for active substances in the treatment of brain tumors.

Source:

Fraunhofer-Institut für Silicatforschung ISC

A shirt that monitors breathing. Bild EMPA
28.12.2022

Wearables for healthcare: sensors to wear

Stylish sensors to wear 
With sensors that measure health parameters and can be worn on the body, we do let technology get very close to us. A collaboration between Empa and designer Laura Deschl, sponsored by the Textile and Design Alliance (TaDA) of Eastern Switzerland, shows that medical monitoring of respiratory activity, for example, can also be very stylish – as a shirt.
 
With sensors that measure health parameters and can be worn on the body, we do let technology get very close to us. A collaboration between Empa and designer Laura Deschl, sponsored by the Textile and Design Alliance (TaDA) of Eastern Switzerland, shows that medical monitoring of respiratory activity, for example, can also be very stylish – as a shirt.

Stylish sensors to wear 
With sensors that measure health parameters and can be worn on the body, we do let technology get very close to us. A collaboration between Empa and designer Laura Deschl, sponsored by the Textile and Design Alliance (TaDA) of Eastern Switzerland, shows that medical monitoring of respiratory activity, for example, can also be very stylish – as a shirt.
 
With sensors that measure health parameters and can be worn on the body, we do let technology get very close to us. A collaboration between Empa and designer Laura Deschl, sponsored by the Textile and Design Alliance (TaDA) of Eastern Switzerland, shows that medical monitoring of respiratory activity, for example, can also be very stylish – as a shirt.

The desire for a healthy lifestyle has triggered a trend towards self-tracking. Vital signs should be available at all times, for example to consistently measure training effects. At the same time, among the continuously growing group of people over 65, the desire to maintain performance into old age is stronger than ever. Preventive, health-maintaining measures must be monitored if they are to achieve the desired results. The search for measurement systems that reliably determine the corresponding health parameters is in full swing. In addition to the leisure sector, medicine needs suitable and reliable measurement systems that enable efficient and effective care for an increasing number of people in hospital and at home. After all, the increase in lifestyle diseases such as diabetes, cardiovascular problems or respiratory diseases is putting a strain on the healthcare system.

Researchers led by Simon Annaheim from Empa's Biomimetic Membranes and Textiles laboratory in St. Gallen are therefore developing sensors for monitoring health status, for example for a diagnostic belt based on flexible sensors with electrically conductive or light-conducting fibers. However, other, less technical properties can be decisive for the acceptance of continuous medical monitoring by patients. For example, the sensors must be comfortable to wear and easy to handle – and ideally also look good.

This aspect is addressed by a cooperation between the Textile and Design Alliance, or TaDA for short, in eastern Switzerland and Empa. The project showed how textile sensors can be integrated into garments. In addition to technical reliability and a high level of comfort, another focus was on the design of the garments. The interdisciplinary TaDA designer Laura Deschl worked electrically conductive fibers into a shirt that change their resistance depending on how much they are stretched. This allows the shirt to monitor how much the subjects' chest and abdomen rise and fall while they breathe, allowing conclusions to be drawn about breathing activity. Continuous monitoring of respiratory activity is of particular interest for patients during the recovery phase after surgery and for patients who are being treated with painkillers. Such a shirt could also be helpful for patients with breathing problems such as sleep apnea or asthma. Moreover, Deschl embroidered electrically conductive fibers from Empa into the shirt, which are needed to connect to the measuring device and were visually integrated into the shirt's design pattern.

The Textile and Design Alliance is a pilot program of the cultural promotion of the cantons of Appenzell Ausserrhoden, St.Gallen and Thurgau to promote cooperation between creative artists from all over the world and the textile industry. Through international calls for proposals, cultural workers from all disciplines are invited to spend three months working in the textile industry in eastern Switzerland. The TaDA network comprises 13 cooperation partners – textile companies, cultural, research and educational institutions – and thus offers the creative artists direct access to highly specialized know-how and technical means of production in order to work, research and experiment on their textile projects on site. This artistic creativity is in turn made available to the partners as innovative potential.

© ITM/TUD - Biomimetic fish fin with dielectric elastomer actors und fiber reinforcement.
08.11.2022

Funding for Fibre-Elastomer Composites: Intelligent materials for robotics and prostheses

  • Successful approval of the 2nd funding period of the DFG Research Training Group 2430 "Interactive fibre-elastomer composites"

Researchers based in Dresden are going to develop a completely new class of materials in which actuators and sensors are integrated directly into flexible fibre composites – contrary to the state of the art. To this end, the German Research Foundation (DFG) approved the 2nd phase of Research Training Group 2430 "Interactive Fibre-Elastomer Composites" at TU Dresden in cooperation with the Leibniz Institute of Polymer Research Dresden. The spokesperson is Professor Chokri Cherif from the Institute for Textile Machinery and High-Performance Textile Materials Technology (ITM) at TU Dresden. A total of 22 doctoral students will be supported in eleven interdisciplinary sub-projects over the next 4.5 years, in addition to material and project funding.
 

  • Successful approval of the 2nd funding period of the DFG Research Training Group 2430 "Interactive fibre-elastomer composites"

Researchers based in Dresden are going to develop a completely new class of materials in which actuators and sensors are integrated directly into flexible fibre composites – contrary to the state of the art. To this end, the German Research Foundation (DFG) approved the 2nd phase of Research Training Group 2430 "Interactive Fibre-Elastomer Composites" at TU Dresden in cooperation with the Leibniz Institute of Polymer Research Dresden. The spokesperson is Professor Chokri Cherif from the Institute for Textile Machinery and High-Performance Textile Materials Technology (ITM) at TU Dresden. A total of 22 doctoral students will be supported in eleven interdisciplinary sub-projects over the next 4.5 years, in addition to material and project funding.
 
As a result the simulation-based development of intelligent material combinations for so-called self-sufficient fibre composites shall be available. Actuators and sensors are already integrated into the structures and no longer placed subsequently, as it is actual the case. In the first funding phase, the important basis for the large two-dimensional deformations in soft, biomimetic structures were developed. The further funding by the DFG is a confirmation of the outstanding results achieved so far. Building on this, the second funding phase will focus on ionic and helical actuator-sensor concepts. Combined with intelligent design and control algorithms, self-sufficient, three-dimensionally deforming material systems will emerge. This will make these systems more robust, complex preforming patterns can be customised at the desired location - reversibly and contact-free.
 
Fibre composites are used increasingly in moving components due to their high specific stiffness and strengths as well as the possibility of tailoring these properties. By integrating adaptive functions into such materials, the need for subsequent actuator placement is eliminated and the robustness of the system is significantly improved. Actuators and sensors based on textiles, such as those being researched and developed at the ITM, are particularly promising in this respect, as they can be integrated directly into the fibre composites during the manufacturing process.

With their innovative properties, interactive fibre-elastomer composites are predestined for numerous fields of application in mechanical and vehicle engineering, robotics, architecture, orthotics and prosthetics: Examples include systems for precise gripping and transport processes (e.g. in hand prostheses, closures and deformable membranes) and components (e.g. trim tabs for land and water vehicles).

More information:
robot Fibers Composites Funding
Source:

TU Dresden: Institute for Textile Machinery and High Performance Textile Materials (ITM)

Photo: Performance Days
18.10.2022

Eco Award & Performance Award for innovative winter fabrics 24/25

  • Jury presents two awards for outstanding fabric Innovation

The next PERFORMANCE DAYS will take place from November 3-4, 2022 at the MOC Ordercenter in Munich. Visitors also have the opportunity to follow the events online. Thanks to the new platform The Loop, all important information is available all year round, including current trends, new material innovations and extended tools for ease of use. The focus of the curated PERFORMANCE FORUM continues in winter honoring the winners of both awards. This year, in addition to a PERFORMANCE AWARD, the jury also presented an ECO PERFORMANCE AWARD.

  • Jury presents two awards for outstanding fabric Innovation

The next PERFORMANCE DAYS will take place from November 3-4, 2022 at the MOC Ordercenter in Munich. Visitors also have the opportunity to follow the events online. Thanks to the new platform The Loop, all important information is available all year round, including current trends, new material innovations and extended tools for ease of use. The focus of the curated PERFORMANCE FORUM continues in winter honoring the winners of both awards. This year, in addition to a PERFORMANCE AWARD, the jury also presented an ECO PERFORMANCE AWARD.

Sustainable & innovative: the award winners of the Winter 2024/25 season
As part of the winter edition of the sourcing fairs, the fabric highlights plus accessory trends in the individ-ual categories for the winter season 2024/25 will be on display at the PERFORMANCE FORUM.
 
Particularly striking this year was the high levels of innovation and quality of many submitted fabrics on the one hand, but on the other hand – also as a result of this year’s Focus Topic – the sustainable component. “We wish to enable our visitors to make the best decision in terms of material selection, also in terms of CO2 neutrality and ultimately also in terms of textile recyclability,” states Marco Weichert, CEO of PERFORMANCE DAYS.  

Nevertheless, the road to CO2 neutrality remains a long one, yet the approaches adopted with the Focus Topic ongoing until the coming spring can be seen in a positive light. In general, manufacturers are increasingly relying on the use of natural fibers when possible, such as Tencel™ or other plant fibers – most of them also prove a low CO2 balance during production. The issue of recycling comes with many new facets and wide spanning trends. The portfolio ranges from the recycling of marine waste, such as old buoys, plastic waste or fishing nets, to the recycling of waste from the automotive and computer industries, such as old car tires or computer chips. Natural dyeing methods are also gaining in importance, as is the return of fabrics to the textile cycle.

In the Marketplace, visitors have the opportunity to view over 19,000 products from exhibitors, including the fabric highlights of the individual categories at the PERFORMANCE FORUM. In order for visitors to experience the fabrics in terms of haptics, design and structure in as realistic a form as possible, the PERFORMANCE FORUM has been equipped with innovative 3D technology, including innovative tools such as 3D images, video animations and U3MA data for download.

The jury has also presented two awards for outstanding fabrics for the Winter Season 2024/25 – with the PERFORMANCE AWARD going to Long Advance Int. Co Ltd., and the ECO PERFORMANCE AWARD to PontetortoSpa.

The ECO PERFORMANCE AWARD goes to “9203/M/RC” from PontetortoSpa: High Performance despite maximum sustainability
The fabric is a blend of 23 % hemp, 69 % recycled polyester and 9 % recycled elastane. Moreover, the material boasts a low CO2 footprint during production and focuses on low release levels of microplastics into the environment. “9203/M/RC” belongs to Pontetorto's Techno Stretch organic series, which boast an excellent 4-way stretch with great elasticity. In addition, it guarantees fast drying and optimal breathability. The polyester yarn is manufactured by the mechanical recycling of plastic bottles. Hemp, the most water–repellent among natural fibers, allows for quick drying and provides optimal comfort. Hemp is considered an extremely sustainable natural fiber due to its origin from an anti–bacterial plant that requires neither pesticides nor chemical fertilizers during its growth and consumes extremely little water.

PERFORMANCE AWARD for “LPD-22015-Y4E” from Long Advanced Int. Co. Ltd.: Perfect recycling for top performance
The monocomponent 2layer fabric is a mixture of 45 % polyester mechanical stretch and 55 % recycled polyester from recycled textiles, laminated with a PET Membrane, with a weight of 147 grams.
The special feature of the “LPD 22015-Y4E” is the recycling of fabric and cutting waste. Waste is thus returned to the textile cycle and used to spin new yarn. In the future, manufacturers will have to ensure that all fabric can be recycled. Accordingly, the production of waste is then reduced by 30 % compared to conventional processes. Furthermore, the jury praised the feel and the extraordinary look of the material.

The entire PERFORMANCE FORUM including both awards can be experienced live at the fair on October 26-27, 2022 in Portland, Oregon, and in Munich at the PERFORMANCE DAYS fair on November 03-04, 2022. As of now, all innovative materials can also be found online in the Marketplace of the PERFORMANCE DAYS Loop, with the option to order free samples directly from the exhibitor.

(c) Empa
05.04.2022

In the heat of the wound: Smart bandage

A bandage that releases medication as soon as an infection starts in a wound could treat injuries more efficiently. Empa researchers are currently working on polymer fibers that soften as soon as the environment heats up due to an infection, thereby releasing antimicrobial drugs.

It is not possible to tell from the outside whether a wound will heal without problems under the dressing or whether bacteria will penetrate the injured tissue and ignite an inflammation. To be on the safe side, disinfectant ointments or antibiotics are applied to the wound before the dressing is applied. However, these preventive measures are not necessary in every case. Thus, medications are wasted and wounds are over-treated.

A bandage that releases medication as soon as an infection starts in a wound could treat injuries more efficiently. Empa researchers are currently working on polymer fibers that soften as soon as the environment heats up due to an infection, thereby releasing antimicrobial drugs.

It is not possible to tell from the outside whether a wound will heal without problems under the dressing or whether bacteria will penetrate the injured tissue and ignite an inflammation. To be on the safe side, disinfectant ointments or antibiotics are applied to the wound before the dressing is applied. However, these preventive measures are not necessary in every case. Thus, medications are wasted and wounds are over-treated.

Even worse, the wasteful use of antibiotics promotes the emergence of multi-resistant germs, which are an immense problem in global healthcare. Empa researchers at the two Empa laboratories Biointerfaces and Biomimetic Membranes and Textiles in St. Gallen want to change this. They are developing a dressing that autonomously administers antibacterial drugs only when they are really needed.

The idea of the interdisciplinary team led by Qun Ren and Fei Pan: The dressing should be "loaded" with drugs and react to environmental stimuli. "In this way, wounds could be treated as needed at exactly the right moment," explains Fei Pan. As an environmental stimulus, the team chose a well-known effect: the rise in temperature in an infected, inflamed wound.

Now the team had to design a material that would react appropriately to this increase in temperature. For this purpose, a skin-compatible polymer composite was developed made of several components: acrylic glass (polymethyl methacrylate, or PMMA), which is used, for example, for eyeglass lenses and in the textile industry, and Eudragit, a biocompatible polymer mixture that is used, for example, to coat pills. Electrospinning was used to process the polymer mixture into a fine membrane of nanofibers. Finally, octenidine was encapsulated in the nanofibers as a medically active component. Octenidine is a disinfectant that acts quickly against bacteria, fungi and some viruses. In healthcare, it can be used on the skin, on mucous membranes and for wound disinfection.

Signs of inflammation as triggers
As early as in the ancient world, the Greek physician Galen described the signs of inflammation. The five Latin terms are still valid today: dolor (pain), calor (heat), rubor (redness), tumor (swelling) and functio laesa (impaired function) stand for the classic indications of inflammation. In an infected skin wound, local warmth can be as high as five degrees. This temperature difference can be used as a trigger: Suitable materials change their consistency in this range and can release therapeutic substances.

Shattering glove
"In order for the membrane to act as a "smart bandage" and actually release the disinfectant when the wound heats up due to an infection, we put together the polymer mixture of PMMA and Eudragit in such a way that we could adjust the glass transition temperature accordingly," says Fei Pan. This is the temperature, at which a polymer changes from a solid consistency to a rubbery, toughened state. Figuratively, the effect is often described in reverse: If you put a rubber glove in liquid nitrogen at –196 degrees, it changes its consistency and becomes so hard that you can shatter it like glass with one blow.

The desired glass transition temperature of the polymer membrane, on the other hand, was in the range of 37 degrees. When inflammation kicks in and the skin heats up above its normal temperature of 32 to 34 degrees, the polymer changes from its solid to a softer state. In laboratory experiments, the team observed the disinfectant being released from the polymer at 37 degrees – but not at 32 degrees. Another advantage: The process is reversible and can be repeated up to five times, as the process always "switches itself off" when it cools down. Following these promising initial tests, the Empa researchers now want to fine-tune the effect. Instead of a temperature range of four to five degrees, the smart bandage should already switch on and off at smaller temperature differences.

Smart and unsparing
To investigate the efficacy of the nanofiber membranes against wound germs, further laboratory experiments are now in the pipeline. Team leader Qun Ren has long been concerned with germs that nestle in the interface between surfaces and the environment, such as on a skin wound. "In this biological setting, a kind of no man's land between the body and the dressing material, bacteria find a perfect biological niche," says the Empa researcher. Infectious agents such as staphylococci or Pseudomonas bacteria can cause severe wound healing disorders. It was precisely these wound germs that the team allowed to become acquainted with the smart dressing in the Petri dish. And indeed: The number of bacteria was reduced roughly 1000-fold when octenidine was released from the smart dressing. "With octenidine, we have achieved a proof of principle for controlled drug release by an external stimulus," said Qun Ren. In future, she said, the technology could be applied to other types of drugs, increasing the efficiency and precision in their dosage.

The smart dressing
Empa researchers are working in interdisciplinary teams on various approaches to improve medical wound treatment. For example, liquid sensors on the outside of the dressing are to make it visible when a wound is healing poorly by changing their color. Critical glucose and pH values serve as biomarkers.

To enable bacterial infections to be contained directly in the wound, the researchers are also working on a polymer foam loaded with anti-inflammatory substances and on a skin-friendly membrane made of plant material. The cellulose membrane is equipped with antimicrobial protein elements and kills bacteria extremely efficiently in laboratory tests.

Moreover, digitalization can achieve more economical and efficient dosages in wound care: Empa researchers are developing digital twins of the skin that allow control and prediction of the course of a therapy using real-time modeling.

Further information:
Prof. Dr. Katharina
Maniura Biointerfaces
Phone +41 58 765 74 47
Katharina.Maniura@empa.ch

Prof. Dr. René Rossi
Biomimetic Membranes and Textiles
Phone +41 58 765 77 65
Rene.rossi@empa.ch

Source:

EMPA, Andrea Six

(c) Empa
08.02.2022

Early detection of dementia with a textile belt

Alzheimer's and other dementias are among the most widespread diseases today. Diagnosis is complex and can often only be established with certainty late in the course of the disease. A team of Empa researchers, together with clinical partners, is now developing a new diagnostic tool that can detect the first signs of neurodegenerative changes using a sensor belt.

Forgetfulness and confusion can be signs of a currently incurable ailment: Alzheimer's disease. It is the most common form of dementia that currently affect around 50 million people worldwide. It mainly afflicts older people. The fact that this number will increase sharply in the future is therefore also related to the general increase in life expectancy.

Alzheimer's and other dementias are among the most widespread diseases today. Diagnosis is complex and can often only be established with certainty late in the course of the disease. A team of Empa researchers, together with clinical partners, is now developing a new diagnostic tool that can detect the first signs of neurodegenerative changes using a sensor belt.

Forgetfulness and confusion can be signs of a currently incurable ailment: Alzheimer's disease. It is the most common form of dementia that currently affect around 50 million people worldwide. It mainly afflicts older people. The fact that this number will increase sharply in the future is therefore also related to the general increase in life expectancy.

If dementia is suspected, neuropsychological examinations, laboratory tests and demanding procedures in the hospital are required. However, the first neurodegenerative changes in the brain occur decades before a reduced cognitive ability becomes apparent. Currently, these can only be detected by expensive or invasive procedures. These methods are thus not suitable for extensive early screenings on a larger scale. Empa researchers are working with partners from the Cantonal Hospital and the Geriatric Clinic in St. Gallen on a non-invasive diagnostic method that detects the early processes of dementia.

Signs in the unconscious
For the new method, the researchers Patrick Eggenberger and Simon Annaheim from Empa's Biomimetic Membranes and Textiles lab in St. Gallen relied on a sensor belt that has already been used successfully for ECG measurements and has now been equipped with sensors for other relevant parameters such as body temperature and gait pattern. This is because long before memory starts to deteriorate in dementia, subtle changes appear in the brain, which are expressed through unconscious bodily reactions.

These changes can only be recorded precisely when measurements are taken over a longer period of time, though. "It should be possible to integrate the long-term measurements into everyday life," explains Simon Annaheim. Skin-friendly and comfortable monitoring systems are essential for measurements that are suitable for everyday use. The diagnostic belt is therefore based on flexible sensors with electrically conductive or light-conducting fibers as well as sensors for motion and temperature measurement.

To enable such long-term measurements to be used for monitoring neurocognitive health, the researchers are integrating the collected data into in-house developed mathematical models. The goal: an early warning system that can estimate the progression of cognitive impairment. Another advantage is that the data measurements can be integrated into telemonitoring solutions and can thus improve patient care in their familiar environment.

Suspicious monotony
The human body is able to keep its temperature constant in a range of 1 degree Celsius. The values naturally oscillate in the course of the day. This daily rhythm changes with age and is conspicuous in neurodegenerative diseases such as dementia or Parkinson's disease. In Alzheimer's patients, for example, the core body temperature is elevated by up to 0.2 degrees Celsius. At the same time, the spikes in daily temperature fluctuations are dampened.

In a study, the researchers have now been able to show that altered skin temperature readings measured with the sensor belt actually provide an indication of the cognitive performance of test subjects – and can do so well before dementia develops. The test subjects in the study included healthy people with or without mild brain impairment. This mild cognitive impairment (MCI) does not represent a disability in everyday life, but it is considered a possible precursor to Alzheimer's disease. The subjects took part in long-term measurements and neuropsychological tests. It was found that a lower body temperature, which fluctuated more throughout the day, was linked to a better cognitive performance. In individuals with MCI, body temperature varied less and was slightly elevated overall.

The heartbeat is also subject to natural variations that show how our nervous system adapts to sudden challenges. The small silence between two heartbeats, about one second in duration, has great significance for our health: If this pause always remains the same, our nervous system is not at its best.

A study by researchers from ETH Zurich determined that poorer measurements in older, healthy people can be improved within six months through cognitive-motor dance training. In these "exergames," the test subjects imitated sequences of steps from a video. In contrast, participants who instead only trained in straight lines on a treadmill, but also trained their memory, benefited less.

"The point is to intervene early with appropriate training as soon as the first negative signs can be measured," says Patrick Eggenberger. "With our sensor system, any improvements in cognitive performance can be tracked through movement-based forms of therapy." Studies with long-term monitoring will now be used to clarify how the sensor measurements can be used to predict the progression of mild brain disorders.

Further information
Dr. Simon Annaheim
Biomimetic Membranes and Textiles   
Phone +41 58 765 77 68
Simon.Annaheim@empa.ch

More information:
Empa Membrane Medical & Healthcare
Source:

EMPA, Andrea Six

(c) Schoeller Textil AG
18.01.2022

A jacket from a jacket from a jacket ...

Manufacture, wear, wash, incinerate: This typical life cycle of garments, which pollutes the environment, is to be changed in the future – towards principles of circular economy with recycling at its core. Using an outdoor jacket made from PET bottles and recycled materials, Empa researchers have investigated whether the product actually delivers what the idea promises.

At first glance, it's a normal rain jacket: three layers of polyester, a lining on the inside, a water vapor-permeable membrane on top and water-repellent fabric on the outside, with a hood. But the zipper makes you wonder. Instead of ending at collar height, it pulls up over the forehead ... – who would pull it that far?

Manufacture, wear, wash, incinerate: This typical life cycle of garments, which pollutes the environment, is to be changed in the future – towards principles of circular economy with recycling at its core. Using an outdoor jacket made from PET bottles and recycled materials, Empa researchers have investigated whether the product actually delivers what the idea promises.

At first glance, it's a normal rain jacket: three layers of polyester, a lining on the inside, a water vapor-permeable membrane on top and water-repellent fabric on the outside, with a hood. But the zipper makes you wonder. Instead of ending at collar height, it pulls up over the forehead ... – who would pull it that far?

The explanation is given by Annette Mark from textile manufacturer BTK Europe, who contributed to this product. The zipper is intended to be an eye-catcher – and is primarily for recycling: Sewn tight with a thread that dissolves in boiling water, it is easier to remove than two fasteners. "Pull once and you're done," says the expert on textiles and recycling. The light green color is also due to recycling: The raw material, a granule made from a mixture of different but single-variety textiles, is dark green – and melting and spinning out the material for new yarns lightens it.

Circular economy within textile industry
Magnetic buttons, seams, hems: Every detail of the jacket follows the Design2Recycle approach, as it says on the Wear2wear website. Six companies from Europe's textile industry have joined forces in this consortium to promote circular economy. After all, more than 70 percent of all textiles produced worldwide end up in landfills or incinerators without being recycled.

How can circular economy be acheived in this industry? A team from Empa's Technology and Society lab took a closer look at the jacket and its environmental impact using life cycle analyses over a four-year period of use; including washing it three times. The candidates: a jacket produced without circular economy methods, the "starter version" of the jacket available since 2019 in blue – with an outer layer made of polyester derived from used PET bottles – and the green version from the subsequent recycling process, in which unavoidable material losses are replaced by new polyester.

The researchers' analyses show that the recycled products perform better – in eleven environmental risk categories, including global warming, toxicity to ecosystems and water scarcity. There are strikingly large advantages in air pollution, for example, because fewer pollutants are released without incineration, as well as in water scarcity, especially for the green jacket after the first recycling "loop," for which PET bottles are no longer used.

Other insights from the analyses: In terms of greenhouse effect, the maximum benefit is a good 30 percent. And the use of PET bottles does not bring any major ecological benefits. What is decisive, on the other hand, is the number of recycling cycles to produce new jackets: The balance improves from jacket to jacket – provided the quality of the polyester remains high enough.

In practice, this is challenging, as Mark explains: "Depending on the origin, the raw material sometimes differs significantly." If the fibers have been coated with certain additives, the nozzles of the spinning machines can become clogged. And in general, the quality decreases with the number of recycling cycles: more irregular structures of the yarn and lower strength.

Annette Mark's conclusion on the Empa analyses: "very realistic" and useful for improvements. "The cooperation was very good," she says, "full transparency and no compromises." The researchers also found the collaboration fruitful. "Open collaboration between science and industry is enormously important," says former team member Gregor Braun, who has since left Empa and now works as a consultant for sustainability. "Sustainability and circular economy can work well together."

Will the jacket become a market success? "The textile industry is in a state of upheaval. A rethinking is taking place right now that we shouldn't miss," says Annette Mark. But large corporations that are already developing similar products "have completely different options." After all, talks are underway with a sportswear manufacturer – for a fleece jacket, for which the Empa findings could also be useful.

Microplastic fibers from textiles
Textiles made of polyester are making the headlines because of the release microplastic fibers – for instance, during washing – which is sometimes considered a threat to humans and the environment. Empa experts have studied the formation and release of microplastic fibers. Their results: Fibers are released primarily at the fabric's edges. Their formation and release depends, among other things, on the type of fiber, surface treatment and the type of cutting. Compared to other textiles, significantly fewer fibers are released from laser-cut textiles during washing. Empa is conducting studies with industrial partners to further reduce the formation of these fibers during textile production. In Swiss wastewater treatment plants, however, microfibers are largely removed from wastewater and incinerated with the sludge.

More information:
Empa PET Recycling polyester
Source:

EMPA, Norbert Raabe

Photo: pixabay
25.05.2021

Water Saving Solution for Textile Industry EC Project Waste2Fresh

The Fraunhofer Institute for Biomedical Engineering IBMT, with its long-term expertise in nanotoxicity and nanosafety testing, contributes to a new EC project for water saving solutions for textile industry. This industry uses a vast amount of water for different steps in the textile dyeing process. It also produces a lot of wastewater, which contains a range of chemicals and dyes.

The Fraunhofer Institute for Biomedical Engineering IBMT, with its long-term expertise in nanotoxicity and nanosafety testing, contributes to a new EC project for water saving solutions for textile industry. This industry uses a vast amount of water for different steps in the textile dyeing process. It also produces a lot of wastewater, which contains a range of chemicals and dyes.

Breakthrough innovations are needed in energy intensive industries to recycle water and create closed loops in industrial processes. 20% of global industrial water pollution comes from textile manufacturing. To reduce the high amount of freshwater used in textile industry, the EC-funded Waste2Fresh project will develop a closed-loop process for textile manufacturing factories in which wastewater is collected, recycled and used again. Novel and innovative catalytic degradation approaches with highly selective separation and extraction techniques will be developed, based on nanotechnology. According to the European Commission, such “closed loops“ would significantly reduce the use of fresh water and improve water availability in the relevant EU water catchment areas, as outlined in the Water Framework Directive.

Closed loop recycling system for wastewater from textile manufacturers
Waste2Fresh meets the above challenges and industry needs by developing and demonstrating (to TRL 7) a closed loop recycling system for wastewater from textile manufacturing factories; to counteract freshwater resource scarcities and water pollution challenges exacerbated by energy intensive industries which are major users of fresh water (for e.g., processing, washing, heating, cooling).

The Waste2Fresh technology is developed to reduce current use of freshwater resources and considerably increases the recovery of water, energy and other resources (organics, salts and heavy metals). The result is a 30% increase in resource and water efficiency compared to the state-of-the-art. The system will ultimately lead to considerable environmental improvements and accordingly reduce the EC and global environmental footprint.

Fraunhofer IBMT expertise in human-toxicity and -safety testing
The Fraunhofer Institute for Biomedical Engineering IBMT will be primarily responsible for performing nanotoxicity and nanosafety testing during the whole technology process (from development to demonstration), ensuring that the developed system and processes meet relevant safety regulations. The Fraunhofer IBMT collaborates with all consortium partners developing and using to develop approaches for ensuring that the developed nanomaterial-based components meet relevant health and safety standards during their use.

For the hazard assessment of the developed nanomaterials, the Fraunhofer IBMT will perform a set of in vitro toxicity studies using commercially available human cell lines. The results of this toxicity studies will be the basis for the development of relevant safety procedures for handling and using the developed recycling technology.

 

Project funding: H2020-EU.2.1.5.3. - Sustainable, resource-efficient and low-carbon technologies in energy-intensive process industries

Duration: 12/2020- 11/2023

Coordinator:
KONYA TEKNIK UNIVERSITESI, Turkey

Project partners:
CENTRE FOR PROCESS INNOVATION LIMITED LBG, United Kingdom
ERAK GIYIM SANAYI VE TICARET ANONIM SIRKETI, Turkey
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Fraunhofer-Institut für Biomedizinische Technik IBMT, Germany
INNOVATION IN RESEARCH & ENGINEERING SOLUTIONS, Belgium
INSTYTUT MOLEKULYARNOI BIOLOGII I GENETYKY NAN UKRAINY, Ukraine
L'UREDERRA, FUNDACION PARA EL DESARROLLO TECNOLOGICO Y SOCIAL, Spain
NANOFIQUE LIMITED, United Kingdom
NANOGENTECH LTD, United Kingdom
PCI MEMBRANES SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA, Poland
STIFTELSE CSDI WATERTECH, Norway
THE OPEN UNIVERSITY, United Kingdom
ULUDAG CEVRE TEKNOLOJILERI ARGE MERKEZI SANAYI VE TICARET LIMITED SIRKETI, Turkey
UNIVERSIDAD INDUSTRIAL DE SANTANDER, Colombia
UNIVERSITA DEGLI STUDI DI TRENTO, Italy
VEREALA GMBH, Switzerland
VSI SOCIALINES INOVACIJOS SVARESNEI APLINKAI, Lithiani

Photo: pixabay
18.05.2021

ECO PERFORMANCE AWARD and PERFORMANCE AWARD for innovative Summer Fabrics 2023

The digital Performance Days will kick off on May 17 through to May 21, providing online access to even more information, current trends, all the latest material innovations and enhanced tools while providing all within the industry the opportunity to interact with one another and with exhibitors.

The focus of the trend-setting PERFORMANCE FORUM in summer will highlight the winners of the two awards. This year, the jury will present a PERFORMANCE AWARD as well as an ECO PERFORMANCE AWARD.

The digital Performance Days will kick off on May 17 through to May 21, providing online access to even more information, current trends, all the latest material innovations and enhanced tools while providing all within the industry the opportunity to interact with one another and with exhibitors.

The focus of the trend-setting PERFORMANCE FORUM in summer will highlight the winners of the two awards. This year, the jury will present a PERFORMANCE AWARD as well as an ECO PERFORMANCE AWARD.

Function revisited: Outstanding fabric innovations for the Summer 2023 season
Plant-based fibers such as hemp, organic cotton, bamboo, wool, kapok or coconut shell remain in demand, with manufacturers increasingly refraining from the use of environmentally harmful chemicals, avoiding micro plastics, advocating natural dyeing processes and striving to either return fabrics back into the cycle, to recycle plastic and other waste or to produce fibers in such a way that they are biodegradable.

In the Marketplace, visitors have the opportunity to view more than 9.000 exhibitors’ products, including the fabric highlights of the individual PERFORMANCE FORUM categories. In order to present the fabrics to visitors in digital form as realistically as possible in terms of feel, design and structure, the PERFORMANCE FORUM has been equipped with state-of-the-art 3D technology, including innovative tools such as 3D images, video animations and U3M files for download.

Exceptional: PERFORMANCE AWARD & ECO PERFORMANCE AWARD Winners
For the Spring/Summer 2023 season, the jury also presented two awards for outstanding new developments – so in addition to the PERFORMANCE AWARD, presented to the winner Trenchant Textiles, there is also an ECO PERFORMANCE AWARD winner, in this year’s case, Utenos Trikotazas.

Sustainability at the highest level, wellbeing for body & soul:
With its fully biodegradable, brushed fleece material made of 11% hemp, 63% organic cotton and 26 % Tencel, Utenos Trikotazas fully convinced the jury and picked up the ECO PERFORMANCE AWARD for its sustainable comfort. The extremely comfy material is pleasant on the skin and impresses with an incredibly soft feel. Hemp is known for its natural anti-bacterial properties and natural UV protection. In combination with organic cotton and Tencel, this fabric guarantees ideal warmth and odour regulation.

Function redesigned, breaking down borders and creating space for the new: In keeping with the Focus Topic of the digital fair week “Still Physical – Your Success Story of 2020”, Trenchant Textiles combined functional features with fashionable design in its new fabric construction, fully deserving of the PERFORMANCE AWARD. The membrane on the outer side, SlickrB, is made of non-toxic, sustainable polypropylene membrane. By printing dot patterns on the surface of the membrane, the fabric provides greater abrasion resistance while maintaining its breathability properties. Absolutely revolutionary: patterns and colors can be altered individually according to preference. The inner liner made of N15DW (15D woven polyamide) also provides tear resistance as well as sufficient, adequate stretch.

09.03.2021

Functional Textiles Shanghai by PERFORMANCE DAYS celebrates its Chinese premiere

Design & Development GmbH Textile Consult, founder and trade fair organiser of PERFORMANCE DAYS in Munich, is eyeing the new year with a lot of hope. After the launch of Functional Fabric Fair by PERFORMANCE DAYS in New York City and Portland together with Reed Exhibitions, PERFORMANCE DAYS is further expanding its portfolio. In cooperation with Tengda Exhibition, the foundations have been laid for a new trade fair for functional textiles in Shanghai. On the 28th and 29th of September 2021, the FUNCTIONAL TEXTILES SHANGHAI by PERFORMANCE DAYS will premiere at the renowned Shanghaimart Exhibition Center, offering ample space for future trends displayed by more than 100 exhibitors.

Design & Development GmbH Textile Consult, founder and trade fair organiser of PERFORMANCE DAYS in Munich, is eyeing the new year with a lot of hope. After the launch of Functional Fabric Fair by PERFORMANCE DAYS in New York City and Portland together with Reed Exhibitions, PERFORMANCE DAYS is further expanding its portfolio. In cooperation with Tengda Exhibition, the foundations have been laid for a new trade fair for functional textiles in Shanghai. On the 28th and 29th of September 2021, the FUNCTIONAL TEXTILES SHANGHAI by PERFORMANCE DAYS will premiere at the renowned Shanghaimart Exhibition Center, offering ample space for future trends displayed by more than 100 exhibitors.

As the new year is entered, the PERFORMANCE DAYS team looks forward with great optimism and confidence to the launch of the new fair for functional textiles - the FUNCTIONAL TEXTILES SHANGHAI by PERFORMANCE DAYS - in Shanghai. China counts as one of the fastest growing and more important future markets worldwide, especially when it comes to functional apparel. The oriental gateway is proving to be innovative, trendsetting, and more recently, increasingly sustainable.

This development is also reflected in the activities of yarn and fabric producers, with local sportswear brands enjoying significant growth. One can be particularly proud of the cooperation with Tengda Exhibition, which is renowned for providing professional services for manufacturers and trading companies in the textile, fibre and various apparel segments. Their services range from fairs to sourcing events in China, Japan, Spain, Great Britain and Turkey.

The premiere of FUNCTIONAL TEXTILES SHANGHAI by PERFORMANCE DAYS will be held at Shanghaimart Exhibition Center on the 28th and 29th of September. Here too, a conscious decision was made for specifically choosing it as an influential trade fair and trading centre. At present, almost 1.000 companies from more than 20 countries and regions have set up offices and showrooms on site, most of them renowned industry experts from the textile and fabric branches.

Qualitative, informative & innovative: Shanghai fair borrows from the Look & Feel of PERFORMANCE DAYS
The FUNCTIONAL TEXTILES SHANGHAI by PERFORMANCE DAYS event team will transfer the already established concept of PERFORMANCE DAYS from Munich to Shanghai. This will lend the fair in China not only the Look & Feel of a familiar concept, but above all the same aspirations in terms of quality. And indeed with a total of 5.300 square metres, more than 100 Chinese and international exhibitors will have sufficient exhibition space. In line with this, the fair organisers wish to guarantee industry visitors to the fair a balanced assortment of top brands from the world of functional textiles.

The fair will focus on the latest trends and innovations from the world of textiles, yarns, membrane technologies and accessories for functional sportswear, workwear, performances wear and lifestyle wear. Demand is accordingly high, with top manufacturers such as Romrol, Sanchuan and Winsun confirming their participation along with other well-known brands such as Anta, Bosideng, Decathlon, Descente, Eral, Fila Hotwind, Icicle, Jeep, Kailas, Kappa, Li-Ning, Peace Bird, Peak, Semir, Skechers, Toread, Uniqulo, Zuczug and 361°, to name a few.

As is usual at the trade fair in Munich, there will also be an informative supporting program with exciting expert talks and discussion panels on sustainable and industry-relevant topics. The centrepiece of the fair, the PERFORMANCE FORUM, rounds off the comprehensive package. Materials from exhibitors curated on-site will be displayed on this specially designed platform. Trade fair general manager Marco Weichert had this to say: “We are thrilled to be starting the new year with such inspiring new projects. The launch of FUNCTIONAL TEXTILES SHANGHAI by PERFORMANCE DAYS in September is the result of many years of monitoring of the Asian market and its increasing demand for curated and high quality sustainable offerings. We are especially pleased about the partnership with Tengda Exhibition, who are real professionals in this field. We are absolutely convinced that the PERFORMANCE DAYS concept, which we will adopt in Shanghai, will be very well received by local trade fair visitors and exhibitors.”

Noel Tian, Managing Director, Tengda Exhibition, adds: “The functional apparel market in China is growing so fast, the brands here need one professional, focused and high class platform for functional textiles just like PERFORMANCE DAYS. We are really excited to launch FUNCTIONAL TEXTILES SHANGHAI by PERFORMANCE DAYS while adopting 100% the PERFORMANCE DAYS concept in the special new year 2021. It is a great honour to have this partnership with Design & Development GbmH Textile Consult and their world famous trade fair brand.“

FUNCTIONAL TEXTILES SHANGHAI by PERFORMANCE DAYS
September 28-29th, 2021
Shanghaimart Exhibition Center No.99 Xingyi Road,Chang Ning District,Shanghai China
Contact:
info@functionaltextilesshanghai.com or +86-21-60493344.

Source:

PERFORMANCE DAYS functional fabric fair

ISPO TREND REPORT (c) Messe München GmbH
28.01.2020

ISPO: SPORT BECOMES A SYNONYM FOR HEALTH

TREND REPORT

  • Winter sports trends for 2020/2021
  • The winter sports industry is increasingly focusing on sustainability
  • ISPO Munich (January 26 to 29) to showcase next season’s products

Health will be one of the next decade’s megatrends. The sports industry is, for its part, one of the growth drivers, not least because society now views fitness as a synonym for health. In the future, athleticism will have an ever greater bearing on our everyday lives.

TREND REPORT

  • Winter sports trends for 2020/2021
  • The winter sports industry is increasingly focusing on sustainability
  • ISPO Munich (January 26 to 29) to showcase next season’s products

Health will be one of the next decade’s megatrends. The sports industry is, for its part, one of the growth drivers, not least because society now views fitness as a synonym for health. In the future, athleticism will have an ever greater bearing on our everyday lives.

“Medical fitness” refers to ensuring both a sporty lifestyle and the right medical care tailored to the individual needs. Winter sports are also set to assume a challenging yet important role in the future as a vehicle for teaching values within society. Veit Senner, Professor of Sports Equipment and Sports Materials at the Technical University of Munich, says: “Sports must be used as an emotional Trojan Horse for teaching skills and in particular for teaching values.”

There are also other challenges that will need to be faced in the next few years: Children and adolescents need to be encouraged to lead more active lifestyles and our aging population needs to be kept fit and mobile for as long as possible. Senner believes that winter sports could hold the key for today’s youth: “We need to demonstrate the kinds of educational content and values that can be taught through sports.” Attractive products and services therefore need to be created for children. The latest winter sports trends and pro ducts will be showcased at ISPO Munich from January 26 to 29.

Textile manufacturers are giving the winter sports industry an eco-boost
Swedish label Klättermusen impressed the ISPO Award jury so much with its first fully compostable down jacket “Farbaute” that they named it the Gold Winner in the Outdoor category and the winner of the ISPO Sustainability Award.

The first 100% biodegradable down jacket biologically decomposes on the compost heap after around three months (all apart from the zippers and a few snap fasteners which can be removed and reused).

When washed it does not release any microplastics into the environment. Norwegian clothing manufacturer Helly Hansen is launching a new membrane technology for winter 2020/2021 which can be produced without any additional chemicals. The microporous Lifa Infinity membrane is made using a solvent-free process and, together with a water-repellent Lifa outer material, provides extremely impressive protection from the elements. Helly Hansen’s new Lifa Infinity Pro technology also uses the spinning jet dyeing process whereby the color pigments are already injected during the fiber production process. This can save up to 75% water. What’s more, no harmful wastewater is produced.

The winter sports industry is increasingly focusing on sustainability
“The really big trend is for biopolymer fabrics and materials,” says Senner. “The idea is to replace the many different types of plastics that are used in the sports industry with biopolymers.” Together with his team, he is working hard to conduct in-depth research in both areas. This is a trend which French ski brand Rossignol has also identified, whereby it has focused on the use of raw and recycled materials for the production of its new Black Ops Freeride skis. The Black Ops Sender TI model was crowned the winner in its category by the ISPO Award jury.

Alpina Sports is also exploring new ecological avenues and launching a completely sustainable back protector made from 100% sheep’s wool, obtained exclusively from sheep in Switzerland and Norway. The back protector, which consists of three layers of pressed sheep’s wool, meets the standards for protection class 1 and boasts all the impressive properties that the natural material has to offer: In icy temperatures it remains supple, can both warm and cool the wearer, and is odorless. The ISPO Award jury chose Alpina Sports’ “Prolan Vest” as the “Product of the Year”* in the Snowsports Hardware category.

Swedish label Spektrum uses plant-based polymers made from castor oil as well as corn and recycled polyester for its ski and snowboard goggles. The ISPO Award jury was extremely impressed with both the ecological aspects and the execution and named the “Östra Medium” model the Gold Winner.

Photo: PREMIÈRE VISION
16.07.2019

PREMIÈRE VISION PARIS IN 09/2019: SPORT, PERFORMANCE AND FASHION

THE INSEPARABLE TRIO UNVEILS ITS NEW STRENGTHS
The next edition of Première Vision Paris, taking place from 17 to 19 September 2019 at Paris Nord Villepinte, will present the new materials and creative stimuli for the autumn-winter 2020-21 season.

This major event for all fashion industry players brings together, twice a year, the six principle activities in the upstream sector: yarns, fabrics, leathers, designs, accessories and clothing. 

THE INSEPARABLE TRIO UNVEILS ITS NEW STRENGTHS
The next edition of Première Vision Paris, taking place from 17 to 19 September 2019 at Paris Nord Villepinte, will present the new materials and creative stimuli for the autumn-winter 2020-21 season.

This major event for all fashion industry players brings together, twice a year, the six principle activities in the upstream sector: yarns, fabrics, leathers, designs, accessories and clothing. 

In the spotlight: the pinnacle of sportswear, its influence on collections and the development of accompanying technological innovations and technical materials. To address these issues, which now permeate all of fashion, Première Vision’s Sport & Tech sector will be prominently featured at the next show. Located in the textile universe of Première Vision Fabrics, in Hall 6, it will bring together 80 exhibiting weavers - including 8 newcomers - to accompany brands and designers looking for inspiration. Their new products will be unveiled in a dedicated space, the Sport & Tech forum, designed around a core theme of «A matter of protection» (protection and innovation).
 
Sportswear gains ground, playing a major role in collections
The global sportswear market grew steadily between 2011 and 2016, reaching $280 billion in 20161. It has entered into consumer habits and is synonymous with comfort and technical expertise, as well as style and creativity. And France is no exception: according to a recent study2, French consumers wear sport clothes 1 day out of 5, and 25% of consumers see the latter as a «trend». This growing phenomenon has a significant influence on the industry and on those who design and produce clothing and accessories, whether fashion brands using technical materials for their ready-to-wear collections or sports brands developing lifestyle lines. It was to best support these brands that Première Vision developed an offer specially focused on this area within its flagship event: Première Vision Paris.
     
Protection and insulation: technological contributions
Each edition, the Première Vision teams identify a strong theme based on their international research. As sport wear collections grow increasingly popular, the added performance and technology in these product lines is becoming ever more critical. Consumers have been able to try out the innovative features integrated in their sport apparel for several years now, and expect the same functionality in their everyday clothing. «A matter of protection» has thus been selected as the season’s theme for the Sport & Tech sector. A fashion theme that will be particularly highlighted in the dedicated forum, which will present a broader offer of fabrics and high-performance materials from the show’s weavers, knitters and finishers to meet the needs of industry professionals.

Marguerite Coiraton, Show Manager of Première Vision Fabrics and in charge of the Sport & Tech trail, added: « The September 2019 edition is particularly interested in how clothes are used to protect against the elements, a theme which will certainly dominate the autumn-winter 20-21 collections. This concept encompasses, for example, insulation, with the development of thermo-active materials, fabrics and fibres equipped with nanotechnologies, and intelligent augmented protection».

In addition to the dedicated sector within Fabrics, Première Vision also offers a Sport & Tech itinerary - available on the show app - bringing together nearly 700 exhibitors specialised in sports and technical materials who can be found at the show. This complete panorama comprises spinners, weavers, knitters, tanners, accessory makers, textile designers and fashion manufacturers.
 
SPOTLIGHT ON: A preview of a selection of Sport & Tech exhibitors

  • Polartec: an insulation solution used by outdoor sports enthusiasts for nearly twenty years, Polartec® fabrics come in a variety of textures and weights and are specifically designed to improve performance in a wide range of environments;
  • Pontetorto SportSystem: founded in 1952, Pontetorto offers a wide range of products from polar fleeces to stretch fabrics, including multilayers, windproofs, waterproof membranes and breathable materials;
  • Schoeller textiles: a Swiss company specialised in developing innovative textiles, especially warm and resistant fabrics. ‘Cosmopolitan’, its multifunctional collection, perfectly meets the growing demand for high-performance style, with fabrics where outstanding performance features do not preclude a natural feel and perfect comfort;
  • Swing by Gruppocinque: an Italian fabric manufacturer using innovative technologies and finishings such as resins, membranes and high-performance treatments;
  • Mackent: has an offer of highly original textiles with a focus on shock-absorbing spacer knits for lingerie/ ready-to-wear pieces;
  • Sportwear Argentona: a Spanish brand specialising in fabric manufacturing, is presenting its ‘2.0 fabrics’ with excellent breathability and high comfort. These are adaptable, lightweight, elastic, compressing with an innovative aesthetic.
  • Global Merino: a maker of technical textiles using merino wool as a base product. It identifies the performance requirements of the item to be created and develops the fabric according to the end use;
  • Shepherd: a vertically integrated producer of merino knits and apparel, including the world’s finest 13.5-micron merino fabric.

New performance codes to better identify innovation
4 new Performance Codes will be introduced at Première Vision Paris in September 2019:  

  • Downproof, to indicate which fabrics will properly block feathers in quiltings;
  • Multilayer, used very often for fabrics for the world of sports performance;
  • Washable, for wash-resistant leathers;
  • Ultralight, used exclusively for accessory components.

A varied and experiential Sport & Tech universe
A.    A virtual reality experience so visitors can fully immerse themselves in the theme

To offer visitors a live experience, Première Vision has designed a digital animation about the theme of protection. Using virtual reality, it is designed to expose visitors to a variety of environments and external elements (cold, wind, etc.).

B.    Dedicated fashion information
Protection doesn’t preclude creativity and style, in fact quite the opposite is true. This season will be marked by fantasy, with materials combining strong colours, prints, motifs and shine. Visitors will thus find an exclusive and creative Sport & Tech forum, built around the following 4 themes: Tech Tailoring, Ski Touring, Soft Outdoor and Snow Fun. It will bring together samples, components and clothing prototypes.

C.    A comprehensive and high-level conference program to help guide visitors in their choices
This edition, the conferences will be held in very central locations at the show. A space in Hall 3 will host the conferences focusing on innovation, and a space in Hall 6 will be reserved for conferences on fashion trends.

Here are some of the upcoming presentations dedicated to the world of Sport & Tech (Hall 6 conference space) taking place at Première Vision Paris September 2019:

  • A conference by Pascal Monfort, founder of the REC trendsmarketing consulting firm, on the theme «The sport & fashion couple: more than ever inseparable!»;
  • The presentation of a study on sport and fashion conducted in the French market by Union Sport & Cycle, which assessed the expectations of 12,500 consumers;
  • Conferences decoding the fashion trends: « Performance, the challenge in fashion » and «Fashion & Sports major influences and innovations for AW 2021» including exhibitors’ pitchs to present their latest innovations.

Sources : 1: Euromonitor International, 2: « Union Sport & Cycle » Study

(c) Messe Frankfurt
14.05.2019

Prize winners of the “Textile Structures for New Building” have been chosen

Eight projects receive awards in the "Textile Structures for New Buildings” competition. For the 15th time, the competition for young talent during Techtextil will honour innovative approaches and excellent material solutions from the world of textile construction.
 
The winners of the student competition “Textile Structures for New Building” have now been decided. An international jury of renowned civil engineers and architects has awarded six prizes and two commendations. On the occasion of Techtextil, which will take place in Frankfurt am Main from 14-17 May 2019, the student competition organised jointly by the international association TensiNet as sponsor and Techtextil will award prizes for the 15th time for innovative ideas for building with textiles and textile-reinforced materials.

Eight projects receive awards in the "Textile Structures for New Buildings” competition. For the 15th time, the competition for young talent during Techtextil will honour innovative approaches and excellent material solutions from the world of textile construction.
 
The winners of the student competition “Textile Structures for New Building” have now been decided. An international jury of renowned civil engineers and architects has awarded six prizes and two commendations. On the occasion of Techtextil, which will take place in Frankfurt am Main from 14-17 May 2019, the student competition organised jointly by the international association TensiNet as sponsor and Techtextil will award prizes for the 15th time for innovative ideas for building with textiles and textile-reinforced materials.

‘We're really pleased that, together with the international association TensiNet, we are once again able to sponsor students who have submitted work of a very high quality. Presenting these awards during Techtextil also gives young students and professionals at the start of their careers the chance to come into contact with other universities, the textile technology industry and the construction industry’, explains Michael Jänecke, Director Brand Development Technical Textiles & Textile Processing at Messe Frankfurt.

The submitted works covered a very wide range of services and variety of topics and focused among other things on material applications, building designs, utilisation concepts and environmental solutions as well as assembly and construction concepts.
All prizes and commendations will be presented at a Techtextil ceremony on 14 May 2019 at 4 p.m. as well as during a special show in the foyer of hall 4.2.

Micro architecture
One prize was awarded to the project ‘Airdapt’. Rebecca Schedler from the Weißensee Kunsthochschule Berlin developed an adaptable kinetic wall system that offers the possibility of dividing large rooms into smaller working areas that can become more or less transparent and more or less sound-absorbing depending on requirements.

Macro architecture
The first prize in this category goes to Hugo Cifre from the Universidad Europea de Madrid/Espacio La Nube and Miguel Angel Maure Blesa from the Universidad Politécnica de Madrid for the project ‘Bubble’. This pneumatically supported walk-in cuboid has a square layout and a height of approx. 4 metres. The entrances are elegantly integrated into the geometry and become effective when the cuboid is under slight positive air pressure. Attracted by the unusual object, visitors are literally ‘sucked into’ the interior.

Second prize goes to Thitiwut Pakdee, Surakist Hunpaisarn and Chonticha Wimonchailerk from the Thai Thammasat University for their work ‘Membrane Shelter for Shipyard’, which provides a membrane canopy for the site of a former shipyard in Ayutthaya (Thailand) to protect the plant from direct sunlight, wind and rain. The concept was inspired by the sails and waves of classic shipbuilding.

Ruichen Tang from the Escuela Técnica Superior de Arquitectura de Madrid has been awarded third prize for the entry ‘Tensegrity Cloud’.
The visual lightness of the ‘basic modules’ formed by this design, which consist of a textile-covered steel frame, is supplemented by a structural advantage, namely that the forces within the overall self-stabilising system balance each other out.

Urban Living – City of the Future
Based on this year's special Techtextil theme, Masa Zujovic, Isidora Kojovic and Nevena Jeremic from the University of Belgrade – Faculty of Architecture (Serbia) will receive an award for their ‘Voro-Membrane’ design. What at first glance seems convincing as an aesthetic solution for providing shade in public street spaces is based on the mathematical pattern of Voronoi structures. The resulting exciting interplay of light and shadow could be further explored in an urban context and applied to a wide variety of situations.

Material innovations
In this category, Magdalena Wierzbicka from the Dutch Piet Zwart Institute has been awarded a prize for her project ‘Woven Spaces - Porcelain Textiles’. Here, the jury honours the fact that the contribution draws on the Thuringian tradition of porcelain lace from the late 19th century and transforms it into a modern design language.

Commendation
The project ‘A Catalyst for Urban Renewal’ by Galen Rochon from Canada’s Dalhousie University – School of Architecture receives a commendation. In this design for the Prince of Wales Bridge in Ottawa, an industrial monument that has lain unused for 20 years, various possibilities were shown for hanging double-curved membrane surfaces in the existing, regularly structured truss construction and stiffening them if necessary.

Commendation
The design ‘XCape’ submitted by Lobke Beckfeld from the Weißensee Kunsthochschule Berlin also received praise. It presents a hybrid vehicle whose space is generated by variable folding configurations and can be used in a variety of ways.

Prizewinners can look forward to prize money totalling 8,000 euros.

Performance Days November 2017 © Performance Days
28.11.2017

NEW RECORDS SET AGAIN AT PERFORMANCE DAYS IN MUNICH

The recently concluded trade fair once again demonstrates: The PERFORMANCE DAYS concept works! At the 19th edition of the trade fair for functional fabrics and sport accessories, new top ratings were achieved in all areas.

The recently concluded trade fair once again demonstrates: The PERFORMANCE DAYS concept works! At the 19th edition of the trade fair for functional fabrics and sport accessories, new top ratings were achieved in all areas.
Innovation is the specialty at PERFORMANCE DAYS. The functional fabric trade fair has a reputation for being the first to show the newest trends way ahead of the other trade fairs and industry gatherings. The fair offers several unique tools such as the Focus Topic, the PERFORMANCE FORUM with the PERFORMANCE TABLES and the PERFORMANCE WALL, the PERFORMANCE AWARDS, the comprehensive presentation and workshop program as well as the guided tours. What makes this fair so special? Not only the free admission to the fair, but all of the top quality programs are also free of charge! So much commitment to service and trend scouting pays off: The recent trade fair held on November 8-9th, 2017 at the MTC in Munich once again broke all previous records!

Visitor and Exhibitor plus
The halls of the MTC were filled to maximum capacity and recorded significantly more visitors than the previous fair last April and even more than the fair in November 2016. The number of trade visitors rose from 1868 in November 2016, to 2001 breaking the 2000 mark for the first time. This growth corresponds to a 7.1 percent increase. In comparison to the previous year, the number of exhibitors was also greater in autumn 2017, registering a 9.9 percent increase. A total of 177 exhibitors from 23 countries occupied all of the halls to capacity, confirming the decision to relocate to the halls of Messe München, which is scheduled for November 2018. Even now, shortly after opening the exhibitor registration period, demand is already higher than the number of available spaces.

The move to Riem
When the doors of PERFORMANCE DAYS open next year on November 28-29th, 2018, the trade fair will be celebrating not only its 10-year anniversary, but also the first edition of PERFORMANCE DAYS at the new location. In the future, one of the large halls on the exhibition grounds in Munich-Riem will be provided twice a year for functional fabrics. For the debut, it will be located in Hall C1, with easy access via the north-west entrance from the west parking garage.

All highlights also provided online
As usual, when the most recent exhibit comes to a successful close, a special service is made available to all those who did not have enough time: All the highlights and important information like the presentations (also as a podcast!), as well as all the fabrics at the Forum will be available directly at www.performancedays.com. Even more interesting for you: Samples of all featured PERFORMANCE FORUM fabrics can be ordered online, which means direct sourcing of materials is now possible from the comfort of your office.
A special highlight of the past exhibition was the Focus Topic "Thermal Technologies – From Fibre to Smart Textiles." The topic covered the entire spectrum of heat retention and generation in sports clothing, as well as the ECO PERFORMANCE AWARD. The award winner was Pontetorto for the development of the first fleece to be produced with a brushed inside and with particles and fibers that are biodegradable even in sea-water. This innovation was a joint development between Vaude and Lenzing. The workshop presented by Ana Kristiansson about the possibilities of founding a sportswear brand was also very well received.
Besides the familiar exhibitors like Invista, Cocona/37.5, Lenzing, Microban, 3M, bluesign, Burlington, Dyneema, Nilit, Outlast, Pertex, Polartec, Pontetorto, PrimaLoft, Schoeller, Singtex, Sympatex, Südwollle, Toray, and YKK; the Messe welcomed new exhibitors like Freudenberg Performance Materials, Clo Insulation, Flying Textile, Inuheat Group, ISKO ARQUAS, Manifattura Effe Pi, The Woolmark Company, and Tough Knitting Enterprise.

About PERFORMANCE DAYS
PERFORMANCE DAYS — The “functional fabric fair” launched in 2008, is the first and only event created especially for functional fabrics for sports and work clothing. The aim of the semiannual trade fair is to give leading and innovative textile manufacturers, suppliers and service providers the opportunity to present their functional fabrics, membranes plus treatments, laminates, paddings, fin-ishes, and accessories such as yarns, tapes, prints, buttons and zippers.
The industry experts who come to this fair – the sports fashion designers, product managers, and decision-makers (see online: Visitor List) represent almost every European active clothing and func-tional wear manufacturer – can find a complete selection of high quality materials available at just the right time in April/May and November. The dates are intentionally scheduled early thanks to our expertise in functional fabrics and are optimal for summer and winter sport collections. (All trade fair catalogs from past events are available online at Catalogs as well as a listing of current exhibitors at Exhibitor List).
 
The relaxed and focused workshop-like atmosphere at PERFORMANCE DAYS differentiates it from the other fairs which are often unmanageable and more stressful. That is one of the reasons why the Munich trade fair at the heart of the European sportswear industry has become one of the top addresses for new fabrics, innovations, and is the preferred meeting place to conduct business.
In the unique PERFORMANCE FORUM of PERFORMANCE DAYS, the visitor receives an inspiring and well-grounded overview of the new materials, trends, and innovations of the exhibitors. The PERFORMANCE AWARD and the ECO PERFORMANCE AWARD are also presented here. Qualified guest speakers present special topics and their collaborative ventures in guided tours, workshops and presentations to complete the range of information provided at PERFORMANCE DAYS within the Program (see after the fair online in the Presentation Library).
No entry fee and free admission to all events for industry visitors.

Ariane5 © ESA_Stephane Corvaja 2016
09.05.2017

BAGS PACKED FOR SPACE: TEXTILES NEEDED FOR A MISSION TO MARS

  • Techtextil and Texprocess present ‘Living in Space’ in cooperation with ESA and DLR 
  • Nutrition, mobility, fashion and living: technical textiles make settlements in space possible

Beam me up, Scotty: a large amount of material has to be transported for a journey into space – and technical textiles account for a large proportion of them. Examples of the parts and products in which they are to be found will be on show at the ‘Living in Space’ exhibition during this year’s Techtextil und Texprocess (9 to 12 May 2017), which has been organised by Messe Frankfurt in cooperation with the European Space Agency (ESA) and the German Aerospace Centre (DLR). Among the exhibits to be seen are materials and technologies from Techtextil and Texprocess exhibitors in a ‘Material Gallery’, architecture for space by Ben van Berkel, space-inspired fashions and an original Mars Rover.

  • Techtextil and Texprocess present ‘Living in Space’ in cooperation with ESA and DLR 
  • Nutrition, mobility, fashion and living: technical textiles make settlements in space possible

Beam me up, Scotty: a large amount of material has to be transported for a journey into space – and technical textiles account for a large proportion of them. Examples of the parts and products in which they are to be found will be on show at the ‘Living in Space’ exhibition during this year’s Techtextil und Texprocess (9 to 12 May 2017), which has been organised by Messe Frankfurt in cooperation with the European Space Agency (ESA) and the German Aerospace Centre (DLR). Among the exhibits to be seen are materials and technologies from Techtextil and Texprocess exhibitors in a ‘Material Gallery’, architecture for space by Ben van Berkel, space-inspired fashions and an original Mars Rover. And – even without having completed a dizzying astronaut training programme – visitors can take a journey through space to Mars via virtual-reality glasses.

“At the ‘Living in Space’ exhibition, Techtextil and Texprocess visitors can see examples of textile materials and processing technologies in an application-oriented setting. In cooperation with our partners and exhibitors, we have created an informative and entertaining area, the like of which has never been seen before at Techtextil and Texprocess”, explains Michael Jänecke, Brand Manager, Technical Textiles and Textile Processing, Messe Frankfurt. Given that technical textiles are to be found in almost every sphere of human life, the materials and processing technologies shown are oriented towards the ‘Architecture’, ‘Civilization’, ‘Clothing’ and ‘Mobility’ areas of application.

Ideal homes in space

Visitors can get an idea of how building in space could function at the ‘Architecture’ area curated by Stylepark architecture magazine. Lightweight construction and canopy specialist MDT-tex joined forces with star architect Ben van Berkel of the international UNStudio firm of architects to create a ‘Space Habitat’ especially for Techtextil. Comprising 60 individual modules, each of which is double twisted and under tension, the lightweight pavilion has an area of 40 square metres and consists of specially designed aluminium profiles covered with PTFE sheets. MDT-tex designed the fabric especially for the pavilion in an extremely light grammage without sacrificing its high-temperature resistance and technical properties.

Ultra-lightweight materials play a leading role in space travel because the lighter the space capsule’s load, the cheaper the transport. Reclining in comfortable seats, visitors to the Space Habitat can also travel to Mars using virtual-realist glasses and, at the same time, find out more about technical textiles and their processing in space.

Hightech-Fashion in orbit

No one likes to be too hot or too cold. Space-wear should not only protect the wearer from extreme temperatures but also regulate their body temperature, drain off moisture and be durable and easy to clean. All the better, then, if it also looks good, as shown by the designs in the ‘Clothing’ segment of the exhibition. The ESMOD Fashion School from Berlin presents outfits made by students within the framework of the ‘Couture in Orbit’ project (2015/2016), which was organised by ESA and the London Science Museum. Additionally, the POLI.design centre of the Politecnico di Milano (Milan University) presents outfits from the followup project, ‘Fashion in Orbit’ under the scientific supervision of Annalisa Dominoni and the technical supervision of Benedetto Quaquaro in cooperation with ESA and garment manufacturer Colmar.

The Hohenstein Textile Institutes present two models from the Spacetex research project, within the framework of which astronaut Alexander Gerst tested the interaction of body, apparel and climate under conditions of weightlessness during the ‘Blue Dot’ mission. In this connection, the model, ‘Nostalgia’ by Linda Pfanzler (Lower Rhine University) reminds the wearer of the earth with an integrated library of fragrances. The suits of the ‘Dynamic Space’ collection by Rachel Kowalski (Pforzheim University) contain electrodes that stimulate important muscle groups under conditions of weightlessness. The outfits by Leyla Yalcin and Sena Isikal (AMD Düsseldorf) come from the ‘Lift off’ collection created in cooperation with Bremen-based silver-yarn manufacturer Statex. They include a sleeping bag for astronauts made from silver-coated textiles, which can also be used as an overall and protects the wearer from electro-magnetic radiation. Thanks to the silver threads, another garment, a raincoat reflects light and stores the wearer’s body heat.

Material Gallery: fibers for space

In addition to the exhibits at the special exhibition, around 40 Techtextil and Texprocess exhibitors offer ideas for fibre-based materials and processing technology suitable for use in space in a ‘Material Gallery’. For the ‘Civilization’ segment, they include spacer fabrics for growing vegetables, for ‘Mobility’ a carbon yarn, which was used to make a fairing for the solid-fuel booster rocket of the Ariane 6. The Material Gallery also shows fibre-composite structures made of carbon fibres, such as a robot arm, a whole-body suit that transmits the wearer’s movements to a 3D model in real-time, functional apparel textiles with flame-retardant, anti-bacterial and temperature-regulating properties, and membrane systems for ventilating aircraft.

Exhibits from ESA, DLR and Speyer Museum of Technology, including an original Mars Rover and space suits, make the exhibition an extraordinary experience. The exhibits are supplemented by impulse lectures by ESA experts for technology transfer throughout the fair.