Demonstration of An Active, Self-Cleaning Surface (image) University of Groningen Share Print E-Mail Caption Demonstration of an active, self-cleaning surface. The droplets pick up the dirt particles as they travel along with the surface wave. Credit De Jong et al., Sci. Adv. 2019;5: eaaw0914 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.