ICE (3 of 3) (IMAGE) Rice University Caption A microscopically thin layer of graphene nanoribbons embedded in polyurethane paint on top of a polyimide substrate forms a heating element that can keep structures free of ice. The material was developed at Rice University. The scale bar equals 100 micrometers. Credit Tour Group/Rice 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.