Head shot.jpg

Yeongun Ko, PhD

Department of Chemical Engineering

Contact

  • yeonguko@umich.edu

Education

  • PhD in Chemical and Biomolecular Engineering, North Carolina State University, 2020

  • MS in Chemical Engineering and Materials Science, Chung-Ang University, 2014

  • BS in Chemical Engineering and Materials Science, Chung-Ang University, 2012

Research

  • Yeongun’s current research is focused on engineering polymeric and protein nanoparticles for therapeutic delivery.

Experience

  • Genzer Research Group, Department of Chemical and Biomolecular Engineering, North Carolina State University, 2014-2020

  • Microfluidics and Soft Matter Laboratory, Department of Chemical Engineering and Materials Science, Chung-Ang University, 2009-2014

Awards

  • Frank J. Padden Award finalist, APS Meeting, Boston, MA, USA, 2019

  • Excellent poster presentation, Korean Institute of Chemical Engineers (KICHE), Korea, 2014

  • Full Scholarship of Graduate School, Chung-Ang University, Korea, 2012

    Chairman of the Foundation Prize, Chung-Ang University, Korea, 2012

  • Summa Cum Laude, Department of Chemical Engineering, Chung-Ang university, Korea, 2012

  • The College of Engineering Dean’s Award, Portfolio Competition, Chung-Ang University, Korea, 2011

  • KPX (Korea Prosperity eXcellence) Scholarship, Korea, 2011

  • Scholarship with Honors, Chung-Ang University, Korea, 2010-2011

Publications

  1. Yeongun Ko, Stephanie Christau, Regine von Klitzing, and Jan Genzer, Charge density gradients of polymer thin film by gaseous phase quaternization, ACS Macro Lett. (2020) Accepted.

  2. Jason Miles, Yeongun Ko, and Jan Genzer, Dependence of deposition method on the molecular structure and stability of organosilanes revealed from degrafting by tetrabutylammonium fluoride, Phys. Chem. Chem. Phys. (2020) 22, 658-666

  3. Jinwoo Ma, Yiliang Lin, Yong-Woo Kim, Yeongun Ko, Jongbeom Kim, Kyu Hwan Oh, Jeong-Yun Sun, Christopher B. Gorman, Maxim A. Voinov, Alex I. Smirnov, Jan Genzer and Michael D. Dickey, Liquid metal nanoparticles as initiators for radical polymerization of vinyl monomers, ACS Macro Lett. (2019) 8, 1522-1527

  4. Yuanchao Li, Yiliang Lin, Yunkai Dai, Yeongun Ko, and Jan Genzer, Mechanochemical degrafting of a surface-tethered Poly(acrylic acid) brush promoted etching of tis underlying silicon substrate, Langmuir (2019) 35, 13693-13699.

  5. Yeongun Ko, Jason Miles, and Jan Genzer, Determining water sorption and desorption in thin hydrophilic polymer films by thermal treatment, ACS Applied polymer materials (2019) 1, 2495-2502

  6. Yeongun Ko, and Jan Genzer, Spontaneous degrafting of weak and strong polycationic brushes in aqueous buffer Solutions, Macromolecules (2019) 52, 6192-6200

  7. Rohan Patil, Jason Miles, Yeongun Ko, Preeta Datta, Balaji M. Rao, Douglas Kiserow, and Jan Genzer, Kinetic study of degrafting Poly(methyl methacrylate) brushes from flat substrates by tetrabutylammonium fluoride, Macromolecules (2018) 51, 10237-10245

  8. Yuanchao Li, Yiliang Lin, Yeongun Ko, Douglas Kiserow, and Jan Genzer, Visualization of mechanochemically-assisted degrafting of surface-tethered Poly(acrylic acid) brushes, ACS Macro Lett. (2018) 7, 609-613.

  9. Jason Miles, Spencer Schlenker, Yeongun Ko, Rohan Patil, Balaji M. Rao, and Jan Genzer, Design and fabrication of wettability gradients with tunable profiles through degrafting organosilane layers from silica surfaces by tetrabutylammonium fluoride, Langmuir (2017) 33, 14556-14564

  10. Yuanchao Li, Yeongun Ko, Yiliang Lin, Douglas Kiserow, and Jan Genzer, Enhanced stability of surface-tethered diblock copolymer brushes with a neutral polymer block and a weak polyelectrolyte block: Effects of molecular weight and hydrophobicity of the neutral block, Macromolecules (2017) 50, 8580-8587.

  11. Yeongun Ko, Seung Keun Song, Nam Hee Kim, and Suk Tai Chang, Highly transparent and stretchable conductors based on a directional arrangement of silver nanowires by a microliter-scale solution process, Langmuir (2016) 32, 366-373.

  12. Zhenxing Yin, Seung Keun Song, Duck-Jae You, Yeongun Ko, Sanghun Cho, Si Yun Park, Jeeyoung Yoo, Suk Tai Chang, and Youn Sang Kim, Novel synthesis, coating, and networking of curved copper nanowires for flexible transparent conductive electrode, Small (2015) 11, 4576-4583.

  13. Jangwhan Cho, Yeongun Ko, Hui-Jun Yun, Han-Koo Lee, Soon-Ki Kwon, Yun-Hi Kim, Suk Tai Chang, and Dae Sung Chung, Wafer-scale and environment-friendly deposition methodology for extremely uniform, high performance transistor arrays with an ultra-low amount of polymer semiconductors, Journal of Materials Chemistry C (2015) 3, 2817-2822. (featured as Back Cover)

  14. Yeongun Ko, Nam Hee Kim, Na Rea Lee, and Suk Tai Chang, Meniscus-dragging deposition of single-walled carbon nanotubes for highly uniform, large-area, transparent conductors, Carbon (2014) 77, 964-972.

  15. Nam Hee Kim, Yeongun Ko, Sung-rheb Cho, and Suk Tai Chang, Formation and characterization of wrinkle structures of chemically-derived graphene thin films and micropatterns, Journal of Nanoscience and Nanotechnology (2014) 14, 3774-3777.

  16. Na Rea Lee, Sung Tae Kim, Yeongun Ko, Nam Hee Kim, and Suk Tai Chang, Fabrication of cellulose-based microparticles at gas-liquid interfaces in a microchannel, Chemistry Letters (2013) 42, 1288-12290.

  17. Nam Hee Kim, Beom Jun Kim, Yeongun Ko, Jeong Ho Cho, and Suk Tai Chang, Surface energy engineered, high-resolution micropatterning of solution-processed reduced graphene oxide thin films, Advanced Materials (2013) 25, 894-898.

  18. Yeongun Ko, Sung-rheb Cho, Kyoung Soon Choi, Yensil Park, Sung Tae Kim, Nam Hee Kim, Soo Young Kim, and Suk Tai Chang, Microliter-Scale Solution Processing for Controlled, Rapid Fabrication of Chemically Derived Graphene Thin Films, Journal of Materials Chemistry (2012) 22, 3606-3613.

Presentations

  1. APS Meeting, Boston, MA, USA, March 2019 (oral presentation, Frank J. Padden award finalist)

  2. APS Meeting, Los Angeles, CA, USA, March 2018 (poster)

  3. APS Meeting, New Orleans, LA, USA, March 2017 (poster)

  4. Materials Research Society, San Francisco, California, USA, April 2013 (poster)

  5. Materials Research Society, San Francisco, California, USA, April 2013 (poster)

  6. International Conference on Electronic Materials and Nanotechnology for Green Environment (ENGE), Jeju, Korea, September 2012 (poster)

  7. 86th ACS Colloid & Surface Science Symposium, Baltimore, MD, USA, June 2012 (poster)

  8. Recent Progress in Graphene Research 2011, Suwon, Korea, October 2011 (poster)