people: S. Jeon

Dr. Sangmin Jeon

Dr. Sangmin Jeon is an Assistant Professor in Department of Chemical Engineering at Pohang University of Science & Technology (POSTECH). He received his B.S. (1991) and M.S. (1993) in Chemical Engineering from Pohang University of Science and Technology in Korea, and Ph.D. (2002) in Materials Science and Engineering from the University of Illinois at Urbana.

Before his Ph.D., he worked for SK corporation (refinery) in Korea for 5 years as a research engineer.

Dr. Jeon's main research interests are surface chemistry and physics of biomolecules especially on the semiconductor microcantilevers. His diverse research interests include:

• Novel micro- and nanomechanical sensors for the detection of chemical and biological agents
• Diffusion and conformation of (bio)polymers on solid surface using fluorescence spectroscopy
• Friction control and nanotribology using surface force apparatus and lateral force microscopy
• Dielectric relaxation of polymers under confined geometry

List of Publications

“ For full list of publications click the following link

“Using a Microcantilever for Real Time Detection of Nanobubble Formation”
Sangmin Jeon, Fang Tian and Thomas Thundat, submitted to J. Am. Chem. Soc.

“Rigid DNA Chains Near Nanoparticles”
Sangmin Jeon and Steve Granick, Colloids & Surfaces 238, 109, 2004

“Torsional Spring Constant for AFM Cantilever”
Sangmin Jeon, Yehuda Braiman and Thomas Thundat, Appl. Phys. Lett. 84, 1795, 2004. This paper is highlighted in Virtual Journal of Nanoscale Science and Technology

“Polystyrene Latex Nanoparticles Shrink When Polyelectrolyte of the Same Charge is Added”
Sangmin Jeon and Steve Granick, Macromolecules, 37, 2919, 2004.

“Noncontact Temperature Measurement in Microliter-Sized Volumes Using Fluorescent Labeled DNA Oligomers ”
Sangmin Jeon, Jeff Turner and Steve Granick, J. Am. Chem. Soc. (Communication), 125, 9908, 2003. This paper is highlighted in Analytical Chemistry

“Microviscosity in PEO-PPO-PEO Block Copolymers Probed by Fluorescence Depolarization Kinetics”
Sangmin Jeon, Steve Granick, Kwanwook Kwon and Kookhyun Char, J. Polym Sci. B, 2883, 2002

“Microviscosity of an Ion-Conducting Polymer Probed by Fluorescence Depolarization and Dielectric Spectroscopy”
Sangmin Jeon, Sung Chul Bae, Jeff Turner and Steve Granick, Polymer, 43, 4651, 2002.

“A Conductive Polymer’s Dielectric Normal Modes in the Fluid State Depend on Film Thickness”
Ken Kojio, Sangmin Jeon, Steve Granick, European Phys J. E, 8, 167, 2002.

“Local Chain Dynamics of Adsorbed Polystyrene Studied by Time-Resolved Fluorescence Anisotropy”
Sangmin Jeon, Sung Chul Bae, Steve Granick, Macromolecules (Communication), 34, 8401, 2001.

“A Polymer’s Dielectric Normal Modes Depends on Its Film Thickness When Confined between Nonwetting Surfaces”
Sangmin Jeon, Steve Granick, Macromolecules, 34, 8490, 2001.

“Single Isolated Macromolecules at Surfaces”
Sung Chul Bae, Feng Xie, Sangmin Jeon, and Steve Granick, Current Opinions in Solid State and Materials Science, 5, 327, 2001.

“Conditional Probability Method for Gelation: Extension to the Intramolecular Reaction”
Sangmin Jeon, Kunhong Lee, Hwahak Konghak. 32, 146, 1993.