Coexisting without Mixing (IMAGE) University at Buffalo Caption A two-color fluorescence microscopy image shows liquid droplets made from an arginine-rich protein and a purine-rich RNA. The blue and red droplets are made from the same materials (both protein and RNA), but tagged with different dyes to aid visualization. In many places, the droplets -- floating freely in a solution -- coexist but don't mix. Credit Credit: Ibraheem Alshareedah / Priya Banerjee Laboratory Usage Restrictions This image may only be used in news reports discussing the research in the associated 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.