Nanotube Fields (IMAGE) Duke University Caption These forest-like rows of carbon nanotubes were created on an elastomer substrate that was pre-stretched in one direction and then allowed to contract. This process creates stretchable supercapacitors that hold more charge in less space and remain functional even when stretched to eight times their original size. Credit Changyong Cao, Michigan State University 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.