Peixuan Guo, University of Kentucky (IMAGE) University of Kentucky Caption Peixuan Guo, director of UK's Nanobiotechnology Center, is one of the top nanobiotechnology experts in the world. Credit University of Kentucky Public Relations 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.