Bradley Marks, Michigan State University (IMAGE) Michigan State University Caption Biosystems engineer Bradley Marks is helping validate X-ray technology's use in killing bacterial pathogens on leafy greens. Credit G.L. Kohuth, Michigan State University Usage Restrictions None License Licensed 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.