Polyurethane studded with gold nanoparticles can conduct electricity even when stretched, Michigan engineers have discovered. This feat could pave the way for flexible electronics and gentler medical devices. The nanoparticles start out randomly arranged, but they drift into wire-like formations as the material is stretched. About the Professor: Nicholas Kotov (http://www.umkotov.com/) is the Joseph B.
A thin, stretchable film that can coil light waves like a Slinky could usher in more precise, less expensive monitoring for cancer survivors, helping them get better treatment with less disruption to their everyday lives.