Carbon Nanotubes (2 of 2) (IMAGE) University of Vienna Caption These are carbon nanotubes, seen by scanning electron microscopy. Credit Copyright: University of Vienna. Usage Restrictions The image may only be used with appropriate caption or credit. 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.