Jan-25-19
A battery-free skin patch biosensor offers continuous health monitoring by testing the wearer’s sweat.
Developed by a team from Northwestern University, the soft, flexible patch adheres to the skin’s surface, where it draws sweat into an array of tiny chambers. Each chamber is designed to detect a different parameter—such as the pH levels, glucose, or the amount of sweat produced—with the information transmitted to a nearby smartphone via NFC.
The patch is also powered by radio waves emitted from electronic devices, and could have applications in monitoring cystic fibrosis, dehydration and electrolyte levels as well as tracking athletic endurance in real time.
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