graphene layer vs. water (IMAGE) University of Würzburg Caption Schematic representation showing how a graphene layer protects against water. The electrical current flowing along the edge of the topological insulator indenene remains completely unaffected by external influences. Credit Jörg Bandmann, pixelwg Usage Restrictions Provide Credits License Original 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.