Antiviral surfaces (IMAGE) American Institute of Physics Caption Surfaces with taller and closely packed pillars with a contact angle of around 60 degrees show the strongest antiviral effect or shortest drying time. Credit S. Chatterjee, J.S. Murallidharan, A. Agrawal, and R. Bhardwaj Usage Restrictions Journalists may use this image only with appropriate credit. 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.