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WHY THIS MATTERS IN BRIEF

Nature has lots of tricks up its proverbial sleeve, and now we can use it to cool your sleeves in new ways …

 

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The world is full of new innovative materials, such as living materials as well as bio-mineralisation materials which, in the latter’s case, now means that bricks can self-heal and replicate themselves – material science is getting freakier by the decade…

Oddly enough self-replicating bricks and another new material have something in common – bacteria. In 1086 famous Samurai and the commander-in-chief of the defense of the North of Japan Minamoto no Yoshiie was in the midst of an extended battle campaign. While he and his men were boiling soybeans for dinner they were unexpectedly called to battle. Rather than let the soybeans go to waste, his men packed up the beans and wrapped them in straw. Unfortunately, it was several days before Yoshiie’s men could open the straw bags again, and in that time the beans had quickly become fermented. Despite the odd smell, the soldiers ate the beans anyway and discovered that they liked the taste. What they discovered was Natto, a food that is still to this day enjoyed in Japan and is considered by many to be a delicacy.

 

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What Yoshiie and his men didn’t know at the time was that the stunning transformation of the soybeans was caused by the presence of microorganisms called bacillus subtilis natto. The natto cells are extremely sensitive to exposure to humidity, moisture and heat and they will change size and shape based on its presence. And now a research team at MIT called bioLogic is using these natto cells to create real world applications, including a revolutionary bio-skin fabric used to create clothing that will open cooling vents based on the wearer’s body temperature.

 

 

New Balance and several fashion designers from the Royal College of Art have teamed up with bioLogic to create a collection of activewear that will shift and alter its shape based on the activity of the wearer. These shifting fabric vents are the result of the natto cells that have been incorporated into the spandex material. When heat or humidity levels increase, each natto cell is capable of expanding rapidly up to 50 percent of its original size, causing the textiles to automatically alter shape.

 

 

When natto-infused textiles are made into clothing, the bioLogic team can control the type of cooling vents, the amount of cooling that the clothing will provide, and even the areas of the body that can be cooled. They do this by cutting specific patterned slits into the fabric, and then pairing those slits with bioprinted lines of a natto cell-infused material. If the printed lines of cells are applied in straight lines, then the edges of the slits will quickly fold up, opening large cooling vents. If they are applied in a more uniform pattern the fabric will curl up into a more organic pattern. They can even create extremely small vents that when curled are significantly less noticeable. And once the body has cooled down, the natto cells will return to their original size, and the vents will close up again.

 

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The bioLogic team developed a special 3D bioprinter that will print natto cells onto spandex textiles with a specific pattern of vents cut into them. By optimizing the pattern that they print onto the textiles with the type of vents, they can create a wide variety of effects in the final clothing by controlling its exposure to heat and moisture. They can even be printed to react to a specific source of heat, including the wearer’s internal body temperature, the level of body sweat present on the wearer, or changes in external humidity and weather.

 

Shape changing materials… and reinventing a cup of tea

 

BioLogic is also experimenting with different ways of incorporating the natto cells into different types of fabrics for different uses. So far they have created a lampshade that transforms based on the heat of the light bulb or the amount of light in the room. They have developed a tea bag with a natto-infused leaf on the end of it. When the tea bag is placed into hot water, the leaf will slowly begin to uncurl, when it has completely opened up, the tea has completely steeped and is ready to drink. They have also created a flexible material that is capable of changing color, folding and unfolding based on the amount of moisture being applied to it. To demonstrate the ability, they turned some of the fabric into flowers that will open and turn red when sprayed with water.

 

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“BioLogic seeks a harmonious perspective, where biological and engineering approaches flow in sync. These animate cells are harvested in a bio lab, assembled by a micron-resolution bio-printing system, and transformed into responsive fashion, a ‘Second Skin’. We can now observe the self-transforming biological skin activated by living bacteria,” said the bioLogic team on their MIT Tangible Media project page.

While the focus of BioLogic is currently on clothing and fabric, the natto cells can also be incorporated into more complex materials that will automatically change shape. This could include self-assembling packaging, objects that will alter their shape and orientation based on the local weather or even incorporated into sunscreens on windows.

About author

Matthew Griffin

Matthew Griffin, described as “The Adviser behind the Advisers” and a “Young Kurzweil,” is the founder and CEO of the World Futures Forum and the 311 Institute, a global Futures and Deep Futures consultancy working between the dates of 2020 to 2070, and is an award winning futurist, and author of “Codex of the Future” series. Regularly featured in the global media, including AP, BBC, Bloomberg, CNBC, Discovery, RT, Viacom, and WIRED, Matthew’s ability to identify, track, and explain the impacts of hundreds of revolutionary emerging technologies on global culture, industry and society, is unparalleled. Recognised for the past six years as one of the world’s foremost futurists, innovation and strategy experts Matthew is an international speaker who helps governments, investors, multi-nationals and regulators around the world envision, build and lead an inclusive, sustainable future. A rare talent Matthew’s recent work includes mentoring Lunar XPrize teams, re-envisioning global education and training with the G20, and helping the world’s largest organisations envision and ideate the future of their products and services, industries, and countries. Matthew's clients include three Prime Ministers and several governments, including the G7, Accenture, Aon, Bain & Co, BCG, Credit Suisse, Dell EMC, Dentons, Deloitte, E&Y, GEMS, Huawei, JPMorgan Chase, KPMG, Lego, McKinsey, PWC, Qualcomm, SAP, Samsung, Sopra Steria, T-Mobile, and many more.

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