1996, BSc, and 2000, MSc, Dept of Chemistry, Hanyang Univ.; 2004, PhD, Dept of Chemistry, Northwestern. 2004-05, Postdoc, Dept of Chemistry, Univ. of California, Berkeley. 2006-10, Assistant Professor, and since 2010, Associate Professor, Dept of Chemistry, Seoul Nat'l Univ Since 2004, Consultant, Nanosphere. Member, Scientific Advisory Board, Medifron Digital Biotech. Author. Recipient, awards and honours, incl.: Outstanding Basic Science Research Achievement Award, Ministry of Education, Science and Technology, South Korea (2010); ACS Victor K. LaMer Award, Division of Colloid and Surface Chemistry, American Chemical Society, (2006).