Wrist Sensor Tells You When to Chug a Gatorade
A wrist-worn device with nine tiny needles could monitor electrolyte levels for athletes and soldiers
05 Jun 2014
2 min read
Sandia National Laboratories researcher Ronen Polsky holds a prototype of a microneedle fluidic chip device able to selectively detect and painlessly measure electrolytes in the interstitial fluids that bathe skin cells. Photo: Randy Montoya