colloidal suspension (VIDEO) Johannes Gutenberg Universitaet Mainz This video is under embargo. Please login to access this video. Caption An opalescent drop of a crystalline colloidal suspensions under white light illumination. During expansion into the surrounding water, the drop melts at its outer rim and the molten material gathers in a layer at the cell bottom. Credit video/©: Josefine von Puttkamer-Luerssen / JGU Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.