Astrid Muller Lab 2 (IMAGE) University of Rochester Caption Materials science PhD student Ziyi “Bruce” Meng tests samples of water to see how effective a new electrocatalysis technique developed at Rochester is at remediating perfluorooctane sulfonate (PFOS) pollution. PFOS was once widely used for stain-resistant products but is now banned in much of the world. Credit University of Rochester photo / J. Adam Fenster Usage Restrictions N/A License Original 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.