Colorized Cell on a Nanoneedle Image (IMAGE) Imperial College London Caption The image shows a single human cell (brown) on a bed of nanoneedles (blue). This image was taken by the researchers using electron microscopy. Credit Imperial College London 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.