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Aug 21st, 2014
Sweat-powered electronics show promise for health monitoring
A sweat-powered tattoo biosensor detects lactate levels during exercise.
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Researchers at the University of California, San Diego have developed a sensor in the form of a temporary tattoo that can help monitor lactate during exercise while also drawing power from the chemical, which is naturally found in sweat.

The device was designed by Joseph Wang, PhD and his colleagues in an effort to find more efficient ways to gather and evaluate fitness levels during intense workouts.

The biobattery tattoo is the latest venture into flex circuits and microbattery technology, in an effort to develop smaller electronics that can be used to measure various biological activity. In this case, the device works to measure lactate levels as an indicator for healthy heart and lung activity during strenuous workouts.

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