Separate cells (IMAGE) Penn State Caption These are micrographs of cells separated at various intervals from 0 microns to 15 microns. Credit Tony Jun Huang, Penn State Usage Restrictions Noncommercial use only 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.