24. Protein Nanoparticles: Uniting the Power of Proteins with Engineering Design Approaches

Advanced Science 2022, 9, 2104012

Nahal Habibi †, Ava Mauser †, Yeongun Ko †, Joerg Lahann* (†:equal contribution)

23. Counterpropagating Gradients of Antibacterial and Antifouling Polymer Brushes

Biomacromolecules 2022, 23, 1, 424–430

Yeongun Ko, Vi Khanh Truong, Sun Young Woo, Michael D. Dickey, Lilian Hsiao, Jan Genzer*

22. Novel computational design of high refractive index nanocomposites and effective refractive index tuning based on nanoparticle morphology effect

Composites Part B 2021, 223, 109128

Sipan Liu, Md Didarul Islam, Zahyun Ku*, Darryl A. Boyd*, Yaxu Zhong, Augustine M. Urbas, Evan Smith, John Derov, Vinh Q. Nguyen, Woohong Kim, Jasbinder S. Sanghera, Yeongun Ko, Jan Genzer, Xingchen Ye, Zhanhu Guo, Eunice Seo, Jong E. Ryu*

21. Enhanced mid-wavelength infrared refractive index of organically modified chalcogenide (ORMOCHALC) polymer nanocomposites with thermomechanical stability

Optical Materials 2020, 108, 110197

Md Didarul Islam*, Sipan Liu, Darryl A. Boyd*, Yaxu Zhong, Masrur Morshed Nahid, Reece Henry, Laine Taussig, Yeongun Ko, Vinh Q. Nguyen, Jason D. Myers, Colin C. Baker, Woohong Kim, Jasbinder S. Sanghera, Evan M. Smith, John S. Derov, Xingchen Ye, Aram Amassian, Harald Ade, Jan Genzer, Jong E. Ryu*

20. Ionic complexation of endblock-sulfonated thermoplastic elastomers and their physical gels for improved thermomechanical performance

Journal of Colloid and Interface Science 2020, 567, 419–428

Jiaqi Yan, Shaoyi Yan, Joseph C. Tilly, Yeongun Ko, Byeongdu Lee, Richard J. Spontak*

19. Design of High Efficient Mid-Wavelength Infrared Polarizer on ORMOCHALC Polymer

Macromol. Mater. Eng.2020, 305, 2000033

Md Didarul Islam, Jun Oh Kim, Yeongun Ko, Zahyun Ku*, Darryl A. Boyd*, Evan M. Smith, Vinh Q. Nguyen, Jason D. Myers, Colin C. Baker, Woohong Kim, Jasbinder S. Sanghera, David A. Czaplewski, Augustine M. Urbas, Jan Genzer, Jong E. Ryu*

18. Charge Density Gradients of Polymer Thin Film by Gaseous Phase Quaternization

ACS Macro Lett. 2020, 9, 2, 158–162

Yeongun Ko, Stephanie Christau, Regine von Klitzing, Jan Genzer*

17. 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

Jason Miles, Yeongun Ko, Jan Genzer*

16. Liquid Metal Nanoparticles as Initiators for Radical Polymerization of Vinyl Monomers

ACS Macro Lett. 2019, 8, 11, 1522–1527

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, Michael D. Dickey*

15. Mechanochemical Degrafting of a Surface-Tethered Poly(acrylic acid) Brush Promoted Etching of Its Underlying Silicon Substrate

Langmuir 2019, 35, 42, 13693–13699

Yuanchao Li*, Yiliang Lin, Yunkai Dai, Yeongun Ko, Jan Genzer*

14. Determining Water Sorption and Desorption in Thin Hydrophilic Polymer Films by Thermal Treatment

ACS Appl. Polym. Mater. 2019, 1, 9, 2495–2502

Yeongun Ko, Jason R. Miles, Jan Genzer*

13. Spontaneous Degrafting of Weak and Strong Polycationic Brushes in Aqueous Buffer Solutions

Macromolecules 2019, 52, 16, 6192–6200

Yeongun Ko, Jan Genzer*

12. Kinetic Study of Degrafting Poly(methyl methacrylate) Brushes from Flat Substrates by Tetrabutylammonium Fluoride

Macromolecules 2018, 51, 24, 10237–10245

Rohan Patil, Jason Miles, Yeongun Ko, Preeta Datta, Balaji M. Rao, Douglas Kiserow, Jan Genzer*

11. Visualization of Mechanochemically-Assisted Degrafting of Surface-Tethered Poly(Acrylic Acid) Brushes

ACS Macro Lett. 2018, 7, 6, 609–613

Yuanchao Li*, Yiliang Lin, Yeongun Ko, Douglas Kiserow, Jan Genzer*

10. Design and Fabrication of Wettability Gradients with Tunable Profiles through Degrafting Organosilane Layers from Silica Surfaces by Tetrabutylammonium Fluoride

Langmuir 2017, 33, 51, 14556–14564

Jason Miles, Spencer Schlenker, Yeongun Ko, Rohan Patil, Balaji M. Rao, Jan Genzer*

9. 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, 21, 8580–8587

Yuanchao Li, Yeongun Ko, Yiliang Lin, Douglas Kiserow, Jan Genzer*

8. Highly Transparent and Stretchable Conductors Based on a Directional Arrangement of Silver Nanowires by a Microliter-Scale Solution Process

Langmuir 2016, 32, 1, 366–373

Yeongun Ko, Seung Keun Song, Nam Hee Kim, Suk Tai Chang*

7. Novel Synthesis, Coating, and Networking of Curved Copper Nanowires for Flexible Transparent Conductive Electrodes

small 2015,11, No. 35, 4576–4583

Zhenxing Yin, Seung Keun Song, Duck-Jae You, Yeongun Ko, Sanghun Cho, Jeeyoung Yoo, Si Yun Park, Yuanzhe Piao, Suk Tai Chang, Youn Sang Kim*

6. Wafer-scale and environmentally-friendly deposition methodology for extremely uniform, high-performance transistor arrays with an ultra-low amount of polymer semiconductors

J. Mater. Chem. C, 2015, 3, 2817–2822

Jangwhan Cho, Yeongun Ko, Kwang Hee Cheon, Hui-Jun Yun, Han-Koo Lee, Soon-Ki Kwon, Yun-Hi Kim, Suk Tai Chang*  Dae Sung Chung*

5. Meniscus-dragging deposition of single-walled carbon nanotubes for highly uniform, large-area, transparent conductors

Carbon 2014, 77, 964–972

Yeongun Ko, Nam Hee Kim, Na Rea Lee, Suk Tai Chang*

4. Formation and characterization of wrinkle structures of chemically-derived graphene thin films and micropatterns

J. Nanosci. Nanotechnol., 2014, 14, 5

Nam Hee Kim, Yeongun Ko, Sung-Rheb Cho, Suk Tai Chang*

3. Fabrication of Cellulose-based Microparticles at Gas–Liquid Interfaces in a Microchannel

Chem. Lett. 2013, 42, 1288–1290

Na Rea Lee, Sung Tae Kim, Yeongun Ko, Nam Hee Kim, Suk Tai Chang*

2. Surface Energy Engineered, High-Resolution Micropatterning of Solution-Processed Reduced Graphene Oxide Thin Films

Adv.Mater. 2013, 25, 894–898

Nam Hee Kim, Beom Jun Kim, Yeongun Ko, Jeong Ho Cho, Suk Tai Chang*

1. Microlitre scale solution processing for controlled, rapid fabrication of chemically derived graphene thin films

J. Mater. Chem. 2012,22, 3606–3613

Yeongun Ko, Sung-rheb Cho, Kyoung Soon Choi, Yensil Park, Sung Tae Kim, Nam Hee Kim, Soo Young Kim, Suk Tai Chang*