Changhyun Roh received his Ph.D degree at the Department of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea in 2007. Now he is Senior Researcher/Associate Professor at Korea Atomic Energy Research Institute/University of Science and Technology, Republic of Korea. His current research interests include functional materials, environmental science, nanotechnology, biotechnology and interdisciplinary research. He has published more than 70 research articles in SCI(E) journals. Several projects are ongoing as a project investigator.