Ronald Fowle-Grider (IMAGE) Washington University in St. Louis Caption Ronald Fowle-Grider, postdoctoral fellow in chemistry, Washington University in St. Louis Credit WashU 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.