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Mar 9, 2021

‘Wearable microgrid’ uses the human body to sustainably power small gadgets

Posted by in categories: biotech/medical, engineering, wearables

Nanoengineers at the University of California San Diego have developed a “wearable microgrid” that harvests and stores energy from the human body to power small electronics. It consists of three main parts: sweat-powered biofuel cells, motion-powered devices called triboelectric generators, and energy-storing supercapacitors. All parts are flexible, washable and can be screen printed onto clothing.

The technology, reported in a paper published Mar. 9 in Nature Communications, draws inspiration from community microgrids.

“We’re applying the concept of the microgrid to create systems that are powered sustainably, reliably and independently,” said co-first author Lu Yin, a nanoengineering Ph.D. student at the UC San Diego Jacobs School of Engineering. “Just like a city microgrid integrates a variety of local, renewable power sources like wind and solar, a wearable microgrid integrates devices that locally harvest energy from different parts of the body, like sweat and movement, while containing .”

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