Abstract:

Maltose-neopentyl glycol-3 (MNG-3) was synthesized as a detergent to extract integral membrane proteins (IMPs) from the cell; MNG-3 has flexibility originating from its carbon center and its arms comprising alkyl chains and maltose groups. Herein we demonstrate the reverse-scissoring behavior of MNG-3 through the use of different subphase conditions at the air/water interface. This result illustrates that hydrophilic maltose part of MNG-3 is flexible and rotatable to coordinate with hydrophilic or ionic species for stabilization.

Prof. DAEWON SOHN

Phone: +82-2-2220-0933, Fax: +82-2-2299-0762
Cell Phone: +82-10-9487-0933
E-mail: dsohn@hanyang.ac.kr
Homepage: http://micelle.hanyang.ac.kr 
 

Education:
Feb. 1984 B. S., Chemistry, Hanyang University, Seoul, Korea
Feb. 1986 M. S., Chemistry, Hanyang University, Seoul, Korea
Dec. 1994 Ph. D., Chemistry, Louisiana State University, USA
(Advisor: Professor Paul S. Russo)

Professional Experience:
Jun. 1987 - Jul. 1989 Research Scientist, Cheil Synthetic, Inc. (Samsung), Korea
Dec. 1994 - Nov. 1996 Postdoctoral Fellow, University of Wisconsin, USA
(Advisor: Prof. Hyuk Yu)
Dec. 1996 - Feb. 1997 Postdoctoral Fellow, University of Toronto, Canada
(Advisor: Prof. Eugenia Kumacheva)
Mar. 1997 - Feb. 2002 Assistant Professor, Hanyang University, Seoul, Korea
Mar. 2002 - Feb. 2007 Associate Professor, Hanyang University, Seoul, Korea
Mar. 2007 - present Professor, Hanyang University, Seoul, Korea
Jun. 1997 - Aug. 1997 Visiting Scholar, University of Toronto, Canada
(Host: Professor Eugenia Kumacheva)
Aug. 2001 - June. 2004 Director of Nanoenics, Inc.
Feb. 2004 - Feb. 2005 Guest Researcher, NIST-Gaithersburg, USA
(Host: Michael Fasolka)
Jun. 2008 – Aug. 2008 JSPS Scholar, Kyushu University (Host: Prof. A. Takahara)
Mar. 2006 - Feb. 2008 Chair in the Department of Chemistry, Hanyang University
Aug. 2011 - Dec. 2012 Chair of the Association of General Education in Korea
Sep. 2008 - Jul. 2012 Vice Dean of Academic Affairs, Hanyang University
Aug. 2012 - Jul. 2013 Dean of Academic Affairs, Hanyang University
Jan. 2014 - Mar. 2014 Visiting Professor, Kyushu Univ., Japan (Host: Prof. A. Takahara)
Aug. 2014 - Sep. 2014 Visiting Professor, Georgia Tech., USA (Host: Prof. P. S. Russo)
Sep. 2014 – Oct. 2014 Visiting Professor, RIKEN-Wako, Japan (Host: Dr. Mizuo Maeda)
Nov. 2014 – Dec. 2014 Visiting Professor, USTC-Hefei, China (Host: Prof. Chi Wu)
Jan. 2015 – Feb. 2015 Visiting Professor, CUHK-Hong Kong (Host: Prof. Chi Wu)

Professional Activities:
Jan. 2008 – present Editor, Polymer Bulletin, Springer
Jan. 2006 – Dec. 2006 Director of General Affairs in Korea Chemical Society
Jan. 2003 – Dec. 2003 Director in Korea Polymer Society
Jan. 2002 – Dec. 2002 Director of Academic Affair in Korean Chemical Society
Jan. 2001 – Dec. 2002 Secretary of Polymer Div. in Korean Chemical Society
Member of Korean Chemical Soc. Polymer Soc. of Korea, American Chemical Soc., American Physical Soc.,

Award:
- Scientific Best Publication Award, 18th KOFST, Korea, 2008
- Invited Lecture of Asia Excellence, The Society of Polymer Science, Japan, May 29, 2007

Principal Research Interest:
1. At the Interface
Materials: Polyglutamate, Polymer Surfactant (HEUR), Copolymer (PS-co-PMMA, PL-co-PEO, etc.), Phospholipid, Dendrimers
Instruments: Langmuir-Blodgett film balance, AFM, ATR-IR, Grazing Angle IR, Surface Plazmon Spectroscope, Soft Lithography
2. In Solution and in Bulk State
Materials: Polyglutamate, Polymer Surfactant (HEUR), Rodlike Nanoparticles, Conducting Polymers (PANI, ppy, and etc.), Hydrogel, Polymer Composites, Imogolite, Halloysite
Instruments: Dynamic Light Scattering, Fluorescent Photobleaching Recovery, Neutron Scattering, PGSE-NMR, CP-MAS-NMR, XRD, DMA, BET
3. Combinatorial Polymer Chemistry
Materials: PBLG, PMMA, PHEMA, PDMS
Instruments: Imaging processor, Gradient devices, UV exposing device, Micro fluidic device, SPM, Contact angle apparatus