ACS_Nano_1 (IMAGE) Washington University in St. Louis Caption Nanoplastics facilitate redox chemistry in the environment under light illumination. Polystyrene latex beads (PS-bare) without surface modification, carboxylate-modified polystyrene latex beads (PS-COOH), and amine-modified polystyrene latex beads (PS-NH2) superoxide radicals (O2•−), peroxyl radicals (ROO•). Credit Jun lab, McKelvey School of Engineering at Washington University in St. Louis Usage Restrictions For editorial purposes 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.