Solar-Powered Antibiotic Filters (image) University of Cincinnati Caption These spheres represent solar-powered antibotic filters. Each sphere is smaller than the diamter of a human hair. One day, a collection of such filters could float downstream from urban or farming areas to capture harmful compounds in water. Credit David Wendell, University of Cincinnati Usage Restrictions None 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.