RPE Cells on the Biodegradable Scaffold (IMAGE) NIH/National Eye Institute Caption A scanning electron micrograph image shows a polarized RPE monolayer on a biodegradable scaffold. The image is colored to highlight the scaffold in blue, three RPE cells (brown), and the apical process of cells in RPE monolayer are light green. Credit Kapil Bharti, Ph.D., NEI 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.