Bandage Promotes Cell Spreading (IMAGE) Northwestern University Caption The regenerative bandage promotes cell spreading and proliferation. The green spots are live cells entrapped in the hydrogel and stained with Calcein-AM. Credit Ameer Research Lab, Northwestern 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.