Work Experiment

Associate Professor                                 03/2020 - present 

Ulsan National Institute of Science and Technology (UNIST)

School of Energy and Chemical Engineering

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CEO and Founder                                    09/2019 - present 

AMHOLO Inc.

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Assistant Professor                                  07/2014 - 02/2020 

Ulsan National Institute of Science and Technology (UNIST)

School of Energy and Chemical Engineering

Work Experiment

CEO and Founder                                              2019-Present

Amholo Inc.

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Postdoctoral Associate                                       2011-2014

MIT (Massachusetts Institute of Technology)

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Education

Ph.D. (Macromolecular Science and Eng.)                  2011

University of Michigan, Ann Arbor, MI 

MS (Chemical Engineering)                                         2005

Hanyang University, Seoul, Korea                               

BS (Chemical Engineering)                                         2003

Hanyang University, Seoul, Korea

EXPERTISE & RESEARCH INTERESTS         

Selected Journals

“Dynamic Multi-modal Holograms of Conjugated Organogels via Dithering Mask Lithography”

Nature Materials 2021. 20. 385-394.

“Facile Microfluidic Fabrication of 3D hydrogel SERS Substrate with High Reusability and Reproducibility via Programmable Maskless Flow Microlithography”

Adv. Opt. Mater. 2020, 2001586

“Multi‐Color Luminescence Transition of Upconversion Nanocrystals via Crystal Phase Control with SiO2 for High Temperature Thermal Labels”

Advanced Science. 2020, 7, 2000104

“Modular Layer-by-Layer Assembly of Polyelectrolytes, Nanoparticles, and Molecular Catalysts into Solar-to-Chemical Energy Conversion Devices” Adv. Func. Mater. 2019, 29,1906407

“Complex Tuning of Physical Properties of Hyperbranched Polyglycerol‐Based Bioink for Microfabrication of Cell‐Laden Hydrogels”

Adv. Func. Mater. 2019, 29, 11808750

“High‐Throughput Contact Flow Lithography”

Advanced Science. 2015. 2. 1500149

“A Universal Particle Encoding Architecture for Robust, Process-Inert Multiplexing”

Nature Materials. 2014. 13. 524.

“Conjugated Polyelectrolyte-Antibody Hybrid Molecules for Live Cell Imaging”

Adv. Mater. 2012, 24, 2479.

"Polydiacetylene Liposome Microarrays for Selective and Sensitive Mercury (II) Detection,"

Adv. Mater. 2009, 21, 3674.

“Polydiacetylene Liposome Arrays for Selective Potassium Detection"

J. Am. Chem. Soc., 2008, 130, 5010.

"Highly Emissive Self-assembled Organic Nanoparticles having Dual Color Capacity for Targeted Immunofluorescence Labeling,"

Adv. Mater. 2008, 20, 1117.

• Conjugated Polymer Synthesis/Polymer Chemistry/Photo responsive polymer

: Engineering of polymeric architecture and self-assembly, design of functional conjugated polymer nanocomposites,

• Inorganic nanoparticles (Upconversion Nanorcrystals (UCNs)

: Stimuli (pH, temperature, light)-responsive upconversion nanoparticles, Assembly and patterning of multiple UCNs composites

• Fabrication of customized micro stereolithography systems

: Design of maskless microlithography system for 3D printing application with photocurable conjugated polymer and UCNs, stimuli-responsive structure color systems, high-resolution printing

• Solid phase microarchitecture 3D printing

: Universal design principle of solid nanoparticle 3D printing crosslinker and robust stabilization of inorganic nanoparticles for all solid 3D printing

• Optical Tactile sensor system

: Dynamic force (normal and shear) optical tactile sensor, flexible optical tactile sensors

• Anti-counterfeiting system

: Design of commercial encoding and decoding device, maskless lithography system for anti-counterfeting product fabrication