Shawn Dirk, DOE/Sandia National Laboratories (image) DOE/Sandia National Laboratories Share Print E-Mail Caption Organic materials chemist Shawn Dirk focuses a projector during work on neural interfaces, which are aimed at improving amputees' control over prosthetics with direct help from their own nervous systems. Focusing prior to exposing polymers ensures that researchers pattern the desired feature sizes for the interfaces. Credit Sandia National Laboratories/Randy Montoya Usage Restrictions None Share Print E-Mail 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.