Color Removal (IMAGE) University of Washington Caption Researchers hold a small piece of the sponge-like material in water containing blue dye. After about 10 seconds, the water in the beaker turns clear. Credit Mark Stone/University of Washington Usage Restrictions Photo credit required. 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.