Knowles Lab (IMAGE) Princeton University Caption Kuo Zhao, a fifth-year graduate student in the Princeton University Department of Chemistry Knowles Lab and lead author on the paper. Credit Photo by Princeton Chemistry’s C. Todd Reichart Usage Restrictions For media use only. 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.