Surfaceskins Textile Layer (IMAGE) University of Leeds Caption This is a close up of a Surfaceskins device showing the tiny valves that 'pump' alcohol gel onto the surface. Credit Surfaceskins 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.