Injectable, Cellular-Scale Optoelectronics with Applications for Wireless Optogenetics

The Smaller, the Better New semiconductor device technology enables injection of light-emitting diodes, silicon devices, actuators, and sensors at precisely controlled locations within biological tissues, such as the brain. Kim et al. (p. 211 ) show how wireless control of animal models using these technologies and the techniques of optogenetics provide new insights into basic behavioral neuroscience.