Lead investigator (IMAGE) University of Massachusetts Amherst Caption Lili He is director of the UMass Amherst Institute for Applied Life Sciences’ (IALS) Raman, IR and XRF Core Facility. Credit UMass Amherst Usage Restrictions None 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.