Fouling on Smooth and Wrinkled Surfaces (IMAGE) University of Pittsburgh Caption Top: A smooth and static surface after exposure to blood get fouled with platelets. Bottom: A surface that wrinkles and flattens repeatedly while exposed to blood resists fouling. Insets show same surfaces at lower magnification. Credit University of Pittsburgh Usage Restrictions None 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.