Surface Functionalized GUV (IMAGE) World Scientific Caption (Left) Schematic of NL-2 functionalized GUV interacting with neurexins on the surface of pancreatic β cells. (Right) Illustration of clustering effect during the interaction GUV - cell interaction, resulting in the secretion of insulin. Credit Professor Abraham Lee, Ph.D. Usage Restrictions Acknowledgement of source 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.