Sangpil Yoon, Ph.D. (IMAGE) University of Oklahoma Caption University of Oklahoma engineering researcher Sangpil Yoon, Ph.D., has been awarded a $1.9 million grant from the U.S. Department of Health and Human Services, National Institutes of Health. Credit University of Oklahoma 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.