Q&A: Dr. Sheng Xu, Department of NanoEngineering and the Center for Wearable Sensors, Jacobs School of Engineering, University of California San Diego

A team led by UCSD has built a stretchable electronic patch that can be worn on the skin like a bandage and used to wirelessly monitor a variety of physical and electrical signals, from respiration and body motion, to temperature and eye movement, to heart and brain activity. The device is as small and thick as a U.S. dollar coin.