Thomas P. Russell (IMAGE) University of Massachusetts Amherst Caption Thomas Russell and Ganhua Xie at UMass Amherst and Lawrence Berkeley National Lab use capillary forces to develop a simple method for producing self-assembling hanging droplets of an aqueous polymer solution from the surface of a second aqueous polymer solution in well-ordered arrays. The technique relies on natural properties, in particular surface tension. Credit UMass Amherst 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.