Wearable sensors

Prof. Yoel Fink speaks with Washington Post reporter Pranshu Verma about the growing field of smart textiles and his work creating fabrics embedded with computational power. Fink and his colleagues “have created fibers with hundreds of silicon microchips to transmit digital signals — essential if clothes are to automatically track things like heart rate or foot swelling. These fibers are small enough to pass through a needle that can be sown into fabric and washed at least 10 times.”

MIT engineers have created a bioadhesive ultrasound device that can be adhered to a patient’s skin and record high-res videos of internal organs for up to two days, reports Sophie Bushwick for Scientific American. “The beauty of this is, suddenly, you can adhere this ultrasound probe, this thin ultrasound speaker, to the body over 48 hours,” says Zhao. “This can potentially change the paradigm of medical imaging by empowering long-term continuous imaging, and it can change the paradigm of the field of wearable devices.”

Researchers at MIT, led by Prof. Xuanhe Zhao, have created a wearable ultrasound medical device, reports Jeremy Hsu for New Scientist. “The ultrasound stickers may provide a more flexible imaging option for hospitals to monitor patients without requiring human technicians to hold ultrasound probes, and they could be useful in situations where technicians are in short supply,” writes Hsu.

Prof. Xuanhe Zhao and his research team have developed a stick-on ultrasound patch that can scan a person’s insides as they go about their daily life, reports Ian Sample for The Guardian. “The wearable patch, which is the size of a postage stamp, can image blood vessels, the digestive system and internal organs for up to 48 hours, giving doctors a more detailed picture of a patient’s health than the snapshots provided by routine scans,” explains Sample.

Researchers from MIT have produced a miniature ultrasound device that sticks to the body, reports Maggie Chen for Wired. “By sticking the patch on different parts of the subject’s body, the researchers could get images of the stomach, muscles, blood vessels, lungs, and heart,” explains Chen.

MIT engineers have developed a medical ultrasound system that uses a patch the size of a postage stamp, reports Hiawatha Bray for The Boston Globe. “The new MIT system would allow a doctor or technician to attach a patch directly over the area to be scanned,” explains Bray. “The patch is plugged into a device that captures the ultrasound signal, converts it to a viewable image and records it for future reference.”

Researchers at MIT have created a knit textile containing pressure sensors called 3DKnITS which can be used to predict a person’s movements, reports Charlotte Hu for Popular Science. “Smart textiles that can sense how users are moving could be useful in healthcare, for example, for monitoring gait or movement after an injury,” writes Hu.

Popular Science reporter Charlotte Hu writes that MIT researchers have developed an “electronics chip design that allows for sensors and processors to be easily swapped out or added on, like bricks of LEGO.” Hu writes that “a reconfigurable, modular chip like this could be useful for upgrading smartphones, computers, or other devices without producing as much waste.”

MIT engineers have developed a wireless, reconfigurable chip that could easily be snapped onto existing devices like a LEGO brick, reports Miriam Fauzia for The Daily Beast. “Having the flexibility to customize and upgrade an old device is a modder’s dream,” writes Fauzia, “but the chip may also help reduce electronic waste, which is estimated at 50 million tons a year worldwide.”

CSAIL researchers have developed a robotic glove that utilizes pneumatic actuation to serve as an assistive wearable, reports Brian Heater for TechCrunch. “Soft pneumatic actuators are intrinsically compliant and flexible, and combined with intelligent materials, have become the backbone of many robots and assistive technologies – and rapid fabrication with our design tool can hopefully increase ease and ubiquity,” says graduate student Yiyue Luo.

Researchers from MIT have developed a new fabric that can hear and interpret what’s happening on and inside our bodies, reports Elana Spivack for Inverse. Beyond applications for physical health the researchers envision that the fabric could eventually be integrated with “spacecraft skin to listen to [accumulating] space dust, or embedded into buildings to detect cracks or strains,” explains Wei Yan, who helped develop the fabric as an MIT postdoc. “It can even be woven into a smart net to monitor fish in the ocean. It can also facilitate the communications between people who are hard of [hearing].”

Prof. Yoel Fink speaks with WHDH about his team’s work developing an acoustic fabric that can listen to and record sound, a development inspired by the human ear. "The fabric can be inserted into clothes to monitor heart rate and respiration. It can even help with monitoring unborn babies during pregnancy."

Bloomberg News spotlights how MIT researchers have developed a new material that works like a microphone, converting sounds into vibrations and then electrical signals. “The development means the possibility of clothes that act as hearing aids, clothes that answer phone calls, and garments that track heart and breathing rates,” writes Bloomberg News.

Researchers from MIT and the Rhode Island School of Design have developed a wearable fabric microphone that can detect and transmit soundwaves and convert them into electrical signals, reports Shi En Kim for Popular Science. “Computers are going to really become fabrics," says Prof. Yoel Fink. "We’re getting very close.”

MIT researchers have created a flexible fiber that can generate electrical impulses that are conveyed to the brain as sound, reports Miriam Fauzia for The Daily Beast. “The researchers see endless possibilities for their smart fabric,” writes Fauzia. “The obvious application is in improving hearing aids, which Fink said have trouble discerning the direction of sound, particularly in noisy environments. But the fabric could also help engineers design wearable fabrics that can measure vital signs, monitor space dust in new kinds of spacecraft, and listen for signs of deterioration in buildings like emerging cracks and strains.”