Water Drop Sitting on Hydrophobic Material with Structural Color. (image) University of Pennsylvania Share Print E-Mail Caption Yang's group has a new way of combining the structural color and superhydrophobicity found in butterfly wings. This drop of water sits on a wafer made with their process. Credit Advanced Functional Materials Usage Restrictions With credit Share Print E-Mail 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.