Journal Publications

2022~Present @UNIST

Upcoming Papers

[55] J. Lee, K. H. Ku* et al., Interfacial Instability-driven Porous Block Copolymer Particles with Tunable Structural Colors in a Full Visible Spectrum, to be submitted (2024)

[54] S. Ban, K. H. Ku* et al., Dynamically Shape- and Color-Changing Janus Photonic Colloids with Tunable Crosslinking Degree, to be submitted (2024)

[53] K. Jo, K. H. Ku* et al., Effect of Homopolymers on Phase Separation Dynamics in Complex Block Copolymer Colloids, to be submitted (2024)

[52] K. J. Kim, K. H. Ku* et al., Effect of Alkyl Chain Length in Azobenzene-Containing Nematic Mesogens on UV Sensitivity and Photochromic Behavior of Liquid Crystal Droplets, to be submitted (2024)

[51] J. Heo†, S. Seo†, K. H. Ku* et al., Scalable Pickering Emulsion-Mediated Assembly of Substrate-Free Carbon Nanoparticle Networks, submitted (2024)

[50] Unveiling the Structural Influence of Nematic Mesogens on Customizable Temperature and Spectral Responses

H. S. Oh, K. J. Kim, J. Lee, J. B. Kim, K. H. Ku*

Journal of Colloid and Interface Science in press (2024) [link]

[49] Nanoscopic Catalyst-loaded Porous Metal Oxide Hollow Frameworks using Porous Block Copolymer Templates for High Performance Formaldehyde Sensors

W.-T. Koo, S. Woo, E. Shin, J. Lee, H. Lee, K. H. Ku*, S. -J. Kim*, I. -D. Kim*

Sensors and Actuators B: Chemical 418, 136282 (2024) [link]

[48] Light-Responsive Shape- and Color-Changing Particles with Fast Switching Speed

J. Kim, J. Park, K. Jung, E. J. Kim, Z. Tan, Y. J. Lee, K. H. Ku, B. J. Kim*

ACS Nano 18, 11, 8180 (2024) [link]

[47] Stimuli-Responsive Nanoparticle Self-Assembly in Complex Fluids: A New Insight into Dynamic Surface Chemistry

J. Heo, S. Seo, H. Yun*, K. H. Ku*

Nanoscale 8, 16, 3951 (2024)  [link]

[46] Dynamic Photonic Janus Colloids with Axially Stacked Structural Layers

J. Lee, S. Ban, K. Jo, H. S. Oh, J. Cho, K. H. Ku*

ACS Nano 18, 6, 5196 (2024) [link]

* This paper was highlighted in media: 언론보도(UNIST),  아시아경제, 연합뉴스, 뉴시스, 울산신문, 대학저널 등    

[45] Nanosheet Particles with Defect-Free Block Copolymer Structures Driven by Emulsions Containing Crystallizable Surfactants

Z. Tan†, J. Lee†, J. Kim, K. H. Ku*, B. J. Kim*

Small 20, 5, 2304746 (2023) [link]

[44] Ambient Air-Operated Thermo-Switchable Adhesion of N-isopropylacrylamide Incorporated Pressure Sensitive Adhesives

J. Hwang, D. Lim, G. Lee, Y. E. Kim, J. Park, M. J. Baek, H.-S. Kim, K. H. Park, K. H. Ku, D. W. Lee*

Materials Horizons 6, 10, 2013 (2023) [link]

[43] Investigating Structural Effect of Quaternizing Additives on Shape Transition of Block Copolymer Particles

Z. Tan, E. J. Kim, T. N-L Phan, J. Kim, J. J. Shin, K. H. Ku*, B. J. Kim*

Macromolecules 55, 22, 9972 (2022) [link]

[42] Effect of Molecular Structure of Photoswitchable Surfactant on Light-Responsive Shape Transition of Block Copolymer Particles

J. Kim, Y. J. Lee, K. H. Ku*, B. J. Kim*

Macromolecules 55, 18, 8355 (2022) [link]

[41] Poly(vinylpyridine)-Containing Block Copolymers for Smart, Multicompartment Particles

D. Lee, J. Kim, K. H. Ku, S. Li, J. J. Shin*, B. J. Kim*

Polym. Chem. 18, 13, 2570 (2022) [link]

[40] Triallyl Isocyanurate-Assisted Grafting of Maleic Anhydride to Poly(lactic acid): Efficient Compatibilizers for Poly(lactic acid)/Talc Composites with Enhanced Mechanical Properties

S. B. Park, Y. J. Lee, K. H. Ku, B. J. Kim* 

J. Appl. Polym. Sci.  139, 2, 51488 (2022) [link]

2020~2021 @CNU

[39] Photoswitchable Surfactant-Driven Reversible Shape- and Color-Changing Block Copolymer Particles

J. Kim†, H. Yun†, Y. J. Lee, J. Lee, S.-H. Kim, K. H. Ku*, B. J. Kim*

J. Am. Chem. Soc. 143, 33, 13333 (2021) [link]

[38] Fluorescence Switchable Block Copolymer Particles with Doubly Alternate-Layered Nanoparticle Arrays

T. Kim, M. Xu, Y. J. Lee, K. H. Ku, D. C. Lee, S. G. Jang, H. Yun*, B. J. Kim*

Small 17, 28, 2101222 (2021) [link]

[37] Effect of Polymer Ligand Conformation on the Self-Assembly of Block Copolymers and Polymer-Grafted Nanoparticles within Evaporative Emulsion

M. Xu, K. H. Ku, Y. J. Lee, T. Kim, J. J. Shin, E. J. Kim, S. -H. Choi, H. Yun*, B. J. Kim*

Macromolecules 54, 7, 3084(2021) [link]

[36] Dynamic Coloration of Complex Emulsions by Localization of Gold Rings near the Tri-phase Junction

K. H. Ku†, B. McDonald†, H. Vijayamohanan, C. Zenter, S. Nagelberg, M. Kolle, T. M. Swager*

Small 17, 12, 2007507 (2021) [link]

[35] Responsive Nanostructured Polymer Particles

K. H. Ku*

Polymers 13, 2, 273 (2021) [link]

[34] A Chemiresistive Methane Sensor

M. Bezdek, S.-X. Luo, K. H. Ku, T. M. Swager*

Proc. Natl. Acad. Sci. 118, 2, e2022515118 (2021) [link]

[33] Recent Progress in Development of Polymer Particles by Self-Assembly of Block Copolymers from Emulsions

H. Oh, J. Lee,  K. H. Ku*

Polymer Science and Technology 32, 2, 117 (2021) [link] 

~2020 @KAIST/MIT

[32] C. Tang, K. H. Ku, S.-X. Luo, A. Concellón, Y. M. Wu, R. Lu, T. M. Swager* "Chelating Phosphine Ligand Stabilized AuNPs in Methane Detection" ACS Nano 14, 9, 11605 (2020) [link]

[31] S. Lee†, J. M. Shin†, K. H. Ku†, Y. J. Lee, S. G. Jang, H. Yun, B. J. Kim*, "Interfacial Instability-Driven Morphological Transition of Prolate Block Copolymer Particles: Striped Football, Larva to Sphere" Macromolecules 53, 16, 7198 (2020) [link]

[30] M. Xu, K. H. Ku, Y. J. Lee, J. J. Shin, E. Kim, H. Yun*, B. J. Kim*, "Entropy-Driven Assembly of Nanoparticles within Emulsion-Evaporative Block Copolymer Particle: Crusted, Seeded, and Alternate Layered Onions" Chemistry of Materials 32, 16, 7036 (2020) [link] 

[29] C. Park, T. Kim, G. H. Lee, K. H. Ku, S.-H. Kim*, B. J. Kim* "Fluorescent Polymer-MoS2 embedded Microgels for Photothermal Heating and Colorimetric Monitoring" ACS Applied Materials & Interfaces  12, 31, 35415 (2020) [link]

[28] S.-X. Luo†, C.-J. Lin†, K. H. Ku, K. Yoshinaga, T. M. Swager* "Pentiptycene Polymer/Single-Walled Carbon Nanotube Complexes: Applications in Benzene, Toluene and o-Xylene Detection" ACS Nano  14, 6, 7297 (2020) [link] 

[27] Q. He†, K. H. Ku†, H. Vijayamohanan, B. J. Kim*, T. M. Swager* "Switchable Full-Color Reflective Photonic Ellipsoidal Particles" Journal of the American Chemical Society 142, 23, 10424 (2020) [link]

[26] J. J. Shin, E. J. Kim, K. H. Ku, Y. J. Lee, C. J. Hawker*, B. J. Kim* "100th Anniversary of Macromolecular Science Viewpoint: Block Copolymer Particles: Tuning Shape, Interfaces, and Morphology" ACS Macro Letters 9, 3, 306 (2020) [link]

[25] K. H. Ku, J. Li, K. Yoshinaga, T. M. Swager* "Dynamically Reconfigurable, Multi-Functional Emulsions with Controllable Structure and Movement" Advanced Materials 31, 51, 1905569 (2019) [link]

[24] J. Lee†, K. H. Ku†, J. Kim, Y. J. Lee, S. G. Jang, B. J. Kim* "Light-Responsive, Shape-Switchable Block Copolymer Particles" Journal of the American Chemical Society 141, 38, 15348 (2019) [link]

[23] E. J. Kim†, J. M. Shin†, Y.J. Kim, K. H. Ku, H. Yun, B. J. Kim* "Shape Control of Asymmetrically Nanostructured Cone-Shaped Particles by Tuning the Blend Morphology of A-b-B Diblock Copolymers and C-type Copolymers within Emulsion Droplets" Polymer Chemistry 19, 10, 2415 (2019) [link]

[22] J. Lee, K. H. Ku, C. H. Park, Y. J. Lee, H. Yun, B. J. Kim* "Shape and Color Switchable Block Copolymer Particles by Temperature and pH Dual-Response" ACS Nano 13, 4, 4230 (2019) [link]

[21] K. H. Ku, Y.J. Kim, Y. J. Lee, B. J. Kim* "Shape-Anisotropic Block Copolymer Particles from Evaporative Emulsions: Experiment and Theory" Macromolecules 52, 3, 1150 (2019) [link]

[20] J. M. Shin, Y. J. Lee, M. Kim, K. H. Ku, J. Lee, Y.J. Kim, H. Yun, K. Liao, C. J. Hawker*, B. J. Kim* "Development of Shape-tuned, Monodisperse Block Copolymer Particles through Solvent-mediated Particle Restructuring" Chemistry of Materials 31, 3, 1066 (2019) [link]

[19] K. H. Ku, J. H. Ryu, J. Kim, H. Yun, C. Nam, J. M. Shin, Y. Kim, S. G. Jang, W. B. Lee*, B. J. Kim* "Mechanistic Study on the Shape Transition of Block Copolymer Particles Driven by Length-Controlled Nanorod Surfactants" Chemistry of Materials 30, 23, 8669 (2018) [link]

[18] K. H. Ku, J. M. Shin, H. Yun, G.-R. Yi, S. G. Jang*, B. J. Kim* "Multidimensional Design of Anisotropic Polymer Particles from Solvent-Evaporative Emulsion" Advanced Functional Materials 28, 42, 1802961 (2018) [link]

[17] J. M. Shin, Y.J. Kim, K. H. Ku, Y. J. Lee, E. J. Kim, G.-R. Yi*, B. J. Kim* "Aspect Ratio-Controlled Synthesis of Uniform Colloidal Block Copolymer Ellipsoids from Evaporative Emulsions" Chemistry of Materials 30, 18, 6277 (2018) [link]

[16] K. H. Ku, Y. J. Lee, G.-R. Yi, S. G. Jang, B. V.K.J. Schmidt, K. Liao, D. Klinger*, C. J. Hawker*, B. J. Kim*  "Shape-Tunable Biphasic Janus Particles as pH-Responsive Switchable Surfactants" Macromolecules 50, 23, 9276 (2017) [link]

[15] J. Lee, K. H. Ku, M. Kim, J. M. Shin, J. Han, C. H. Park, G.-R. Yi, S. G. Jang, B. J. Kim* "Stimuli-Responsive Shape-Transforming Nanostructured Particles" Advanced Materials 29, 29, 1700608 (2017) [link]

[14] K. H. Ku, J. Shin, D. Klinger, S.G. Jang, R. C. Hayward, C. J. Hawker*, B. J. Kim* "Particles with Tunable Porosity and Morphology by Controlling Interfacial Instability in Block Copolymer Emulsions" ACS Nano 10, 5, 5243 (2016) [link]

[13] H. Yang, K. H. Ku, J. M. Shin, J. Lee, C. H. Park, H.-H. Cho, S. G. Jang, B. J. Kim* "Engineering the Shape of Block Copolymer Particles by Surface-Modulated Graphene Quantum Dots" Chemistry of Materials 28, 3, 830 (2016) [link]

[12] S.-J. Choi†, K. H. Ku†, B. J. Kim*, I.-D. Kim* "Novel Templating Route Using Pt Infiltrated Block Copolymer Micro-particles for Catalytic Pt Functionalized Macroporous WO3 Nanofibers and Its Application in Breath Pattern Recognition" ACS Sensors 1, 9, 1124 (2016) [link]

[11] K. H. Ku, H. Yang, J. Bang, S. G. Jang*, B. J. Kim* "Tailoring Block Copolymer and Polymer Blend Morphology using Nanoparticle Surfactants" Journal of Polymer Science Part A: Polymer Chemistry 54, 2, 228 (2016)  [link]

[10] K. H. Ku†, Y.J. Kim†, G.-R. Yi, Y. S. Jung*, B. J. Kim* "Soft Patchy Particles of Block Copolymers from Interface-Engineered Emulsions" ACS Nano 9, 11, 11333 (2015) [link]

[9] K. H. Ku, H. Yang, J. M. Shin, B. J. Kim* "Aspect Ratio Effect of Nanorod Surfactants on the Shape and Internal Morphology of Block Copolymer Particles" Journal of Polymer Science Part A: Polymer Chemistry 53, 2, 188 (2015) [link]

[8] J. M. Shin†, M. P. Kim†, H. Yang, K. H. Ku, S. G. Jang, K. H. Youm, G.-R. Yi*, B. J. Kim* "Monodipserse Nanostructured Spheres of Block Copolymers and Nanoparticles via Cross-flow Membrane Emulsification" Chemistry of Materials 27, 18, 6314 (2015) [link]

[7] W. Lee, J.-S. Kim, H. J. Kim, J. M. Shin, K. H. Ku, H. Yang, J. Lee, J. G. Bae, W. B. Lee*, B. J. Kim* "Graft Architectured Rod-Coil Copolymers Based on Alternating Conjugated Backbone: Morphological and Optical Properties" Macromolecules 48, 16, 5563 (2015) [link]

[6] K. H. Ku, J. M. Shin, M. P. Kim, C.-H. Lee, M.-K. Seo, G.-R. Yi, S. G. Jang*, B. J. Kim* "Size-Controlled Nanoparticle-Guided Assembly of Block Copolymers for Convex Lens-Shaped Particles" Journal of the American Chemical Society 136, 28, 9982 (2014) [link]

[5] H. Yang, D. J. Kang, K. H. Ku, H.-H. Cho, C. H. Park, J. Lee, D. C. Lee, P. M. Ajayan, B. J. Kim* "Highly Luminescent Polymer Particles Driven by Thermally Reduced Graphene Quantum Dot Surfactants" ACS Macro Letters 3, 10, 985 (2014) [link]

[4] T. Kwon†, K. H. Ku†, D. J. Kang, W. B. Lee, B. J. Kim* "Aspect Ratio Effect of Nanorod Compatibilizers in Conducting Polymer Blends" ACS Macro Letters 3, 5, 398 (2014) [link]

[3] K. H. Ku, M. P. Kim, K. Paek, J. M. Shin, S. Chung, S. G. Jang, W.-S. Chae, G.-R. Yi, B. J. Kim* "Multicolor Emission of Hybrid Block Copolymer–Quantum Dot Microspheres by Controlled Spatial Isolation of Quantum Dots" Small 9, 16, 2667 (2013) [link]

[2] M. P. Kim†, K. H. Ku†, H. J. Kim, S. G. Jang, G.-R. Yi*, B. J. Kim* "Surface Intaglio Nanostructures on Microspheres of Gold-Cored Block Copolymer Spheres" Chemistry of Materials 25, 21, 4416 (2013) [link]

[1] M. P. Kim, D. J. Kang, A. G. Kannan, K.-H. Kim, K. H. Ku, S. G. Jang, W.-S. Chae, G.-R. Yi*, B. J. Kim* "Gold-decorated Block Copolymer Microspheres with Controlled Surface Nanostructures" ACS Nano 6, 3, 2750 (2012)  [link]