MAGNETO-jf672 (IMAGE) Rice University Caption A sample of Rice University's 'magnetoelectric' film atop a bed of uncooked rice. Rice neuroengineers created the bi-layered film to power implantable neural stimulators that are approximately the size of a grain of rice. The film converts energy from a magnetic field directly into an electrical voltage, eliminating the need for a battery or wired power connection. Credit Jeff Fitlow/Rice University Usage Restrictions Must credit: Jeff Fitlow/Rice University License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.