Tattoo Biobatteries Produce Power From Sweat
 (Video)

In the future, working up a sweat by exercising may not only be good for your health, but it could also power your small electronic devices. Researchers will report today at the 248th National Meeting & Exposition of the American Chemical Society that they have designed a sensor in the form of a temporary tattoo that can both monitor a person's progress during exercise and produce power from their perspiration.

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