Material (SEM) (IMAGE) University at Buffalo Caption A scanning electron microscope image shows the microscale concave interface structure that was studied. The material consists of microspheres partially embedded in sticky tape, forming microscale concave interfaces. Credit Credit: Jacob Rada Usage Restrictions This image may only be used in news stories reporting on the research in the related press release. 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.