Hybrid Optoelectric Device (IMAGE) Purdue University Caption This image shows a new "hybrid optoelectric" device, developed by researchers at Purdue. The device uses a combination of light and electric fields to position droplets and tiny particles, such as bacteria, viruses and DNA, representing a potential new tool for medical diagnostics and crime-scene testing. Credit Craig Snoeyink/Purdue University Birck Nanotechnology Center Usage Restrictions None 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.