Dr. Feng Ding (IMAGE) Clemson University Caption Clemson researcher Dr. Feng Ding (above) is the principal investigator of the NIH grant. Credit Jim Melvin / Clemson 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.