TEM Closeup of CuNi Nanowire (IMAGE) Duke University Caption This is a close-up of a single copper nanowire and its nickel shell. Credit Zuofeng Chen 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.