Starch and Graphene Hydrogel (IMAGE) University of the Basque Country Caption Sample of the hydrogel developed. Credit Kizkitza Gonzalez / UPV/EHU 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.