Wearable sensors detect what’s in your sweat

A paper co-authored by EE Prof. Ali Javey, describes a new sweat sensor design that can be rapidly manufactured using a “roll-to-roll” processing technique that essentially prints the sensors onto a sheet of plastic like words on a newspaper.  The sensors monitor sweat rate and the electrolytes and metabolites in sweat.  “The goal of the project is not just to make the sensors but start to do many subject studies and see what sweat tells us — I always say ‘decoding’ sweat composition,” said Javey.  “For that we need sensors that are reliable, reproducible, and that we can fabricate to scale so that we can put multiple sensors in different spots of the body and put them on many subjects."