Binding Energy of Molecules (IMAGE) University of Basel Caption The tip of an AFM pulling off a molecular chain vertically from a gold surface is shown. Credit (Illustration: Shigeki Kawai) Usage Restrictions Give adequate contribution to the author 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.