A new flexible wearable powered by sweat can generate enough energy to power LEDs and Bluetooth radios.
Developed by a team from the University of California, San Diego, the wearable biofuel cell is able to generate ten times more power per surface area than its counterparts. The key to the device’s efficiency is its ‘bridge and island’ design, which allows it to be flexible, along with a 3D-printed carbon nanotube structure that sits atop the anodes and cathodes. This unique structure allows for more reactive enzymes to be added to each anodic dot, while also resulting in an easier electron transfer.
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