Hydrophobic Surface (IMAGE) Helmholtz Association Caption The upper part of the picture shows the contact angle; the lower part a scanning force microscopy image of the adsorbed oligomers on a hydrophobic surface. Credit Adrian Keller 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.