The main research interest of our group is developing new single-molecule and single-cell imaging techniques for investigating various biological phenomena. We are using single-molecule FRET, single-vesicle assay, single-protein detection in a living cell, real-time single-protein tracking, and super-resolution imaging. Using these techniques, we are directly visualizing the cellular processes, such as transcriptional dynamics and the movement of DNA, in a living cell. We are also heavily investigating membrane protein interactions and their diffusional mode in a living cell. Not only the living cell system, we are also studying protein-DNA interactions at the single-molecule level. Finally, we are studying the molecular mechanism of Parkinson’s disease based on the interactions between alpha-Synuclein and SNARE-proteins

• Ph.D. Chemistry, Seoul National University, Seoul, Korea, 2005
• M.S. Chemistry, Seoul National University, Seoul, Korea, 2000
• B.S. Chemistry, Seoul National University, Seoul, Korea, 1998

• Associate Professor, Department of Chemistry, Seoul National University, Seoul, Korea, 2017-Present
• Associate Professor, Department of Physics & School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea, 2013-2017
• Assistant Professor, Department of Physics & School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea, 2009-2013
• Postdoctoral Fellow, Harvard University, Cambridge, USA, 2006-2008
• Visiting Scientist, U. C. Los Angeles, California, USA, 2002-2003