A version of the sweat sensor. The large curved sections are electrodes that stimulate sweat production.
A team of researchers from Caltech has unveiled a new wearable sensor that can detect in human sweat even minute levels of many common nutrients and biological compounds that can serve as indicators of human health. The sensor technology was developed in the lab of Wei Gao, Assistant Professor of Medical Engineering; Investigator, Heritage Medical Research Institute; Ronald and JoAnne Willens Scholar. [Caltech story]