Here is a smart skin patch powered by human sweat. A team of researchers at the University of California developed a flexible, stretchable patch that can generate enough power from sweat to run a Bluetooth device. It could be particularly useful for athletes.
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This electronic skin can be used to interact with a prosthetic leg. Sweat can be used as an energy source because it contains lactate (produces energy when it oxidizes with lactate oxidase).
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