High-Crowding Environment (IMAGE) University at Buffalo Caption Two protein droplets refuse to merge when pushed together (fluorescence microscope images 1-3, shown sequentially). The droplets, made from fused in sarcoma proteins, are in a hard, gel-like state as they sit in a solution crowded with other molecules. Scientists used state-of-the-art optical tweezing technology to grab and manipulate these protein micro-droplets. Credit Priya Banerjee Lab at UB Usage Restrictions This image may only be used in news reports discussing the research described in the related press release. 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.