California NanoSystems Institute
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Jinwoo Cheon, Ph.D.

Visiting Professor, California NanoSystems Institute
Director, Convergence Nanomaterials System, National Research Laboratory
Professor, Department of Chemistry, Yonsei University
Division Head of Nano-Medical National Core Research Center, Yonsei University
Junior Member, Korean Academy of Science and Technology

Ph.D., University of Illinois, Urbana-Champaign
M.S., Department of Chemistry, Yonsei University
B.S., Department of Chemistry, Yonsei University

Contact Information:
Department Email Address:
Email Address:
Email Address:
Mailing Address: California NanoSystems Institute
Room 6515
Los Angeles, CA 90095
Fax Number: +82-2-364-7050 fax
Office Phone Number: +82-2-2123-5631 office
Work Phone Number: 310-983-3139
Research Interests:

Applications of Nano-materials to Medical Diagnosis and Therapeutics
Cancer detection using magnetic nanomaterials and MRI Magnetic nanomaterials show different magnetism with their sizes and shapes. Elucidation of nanoscale magnetism and their utilization to biomedical cancer detection system via Magnetic Resonance Imaging (MRI) are under proceeding. Fabrication of Nanomaterials - QDs, Semiconductors, Magnets, Metals, & Alloys Size & shape controled synthesis of semiconductor & Magneticnanocrystals Quantum Dots (QDs) or Semiconductor nanocrystals show different electric, magnetic and optical properties with their size and shape.With chemically well controlled synthetic method, the size and shape of semiconductor nanocrystals can be modified, and the researches on their physical properties proceed.

Technical Research Interest:

Magnetic Nanoparticles as Platform Materials for Highly Sensitive Diagnostics and Therapeutics
The development of next generation nanomaterials for the detection of biological targets is of importance. Among many types of nanoparticles, magnetic nanoparticles possess interesting nanoscale phenomena including superparamagnetism, tunable coercivity and magnetic moment. In this talk, I will discuss our recent studies on the chemical design of ultra-sensitive nanoparticle MRI and multi-modal probes. Nanoscale magnetism effects of size, dopant, and magnetocrystallity on the MR signal enhancements are to be described. Magnetism optimized nanoparticles are very useful as key platform materials for high performance multi-modal imaging (e.g. MRI-optical, MRI-PET), drug and gene delivery, cell trafficking, and bio-sensing and actuations.

Selected Publications:

Thomas, C. R., Ferris, D. P., Lee, J. H., Choi, E., Cho, M. H., Kim, E. S., Stoddart, J. F., Shin, J.-S., Cheon, J. and Zink, J. I., Noninvasive Remote-Controlled Release of Drug Molecules in Vitro Using Magnetic Actuation of Mechanized Nanoparticles, Journal of the American Chemical Society, 2010, 132 (31), 10623-5.
Lee, J. H. Lee, K. Moon, S. H. Lee, Y. Park, T. G. Cheon, J., All-in-One Target-Cell-Specific Magnetic Nanoparticles for Simultaneous Molecular Imaging and siRNA Delivery, Angewandte Chemie-International Edition, 2009, 48 (23), 4174-4179.
Jang, J. T. Nah, H. Lee, J. H. Moon, S. H. Kim, M. G. Cheon, J., Critical Enhancements of MRI Contrast and Hyperthermic Effects by Dopant-Controlled Magnetic Nanoparticles, Angewandte Chemie-International Edition, 2009, 48 (7), 1234-1238.
Jinwoo Cheon, Inorganic nanoparticles for biological sensing, imaging and therapeutics , J. Mater. Chem, 2009, 19 (35), 6249-6250.
Zongwen Jin, Young Ki Hahn, Eunkeu Oh, Young-Pil Kim, Je-Kyun Park, Seung Ho Moon, Jung-Tak Jang, Jinwoo Cheon, Hak-Sung Kim , Magnetic Nanoclusters for Ultrasensitive Magnetophoretic Assays, Small, 2009, 5 (20), 2243-2246.
Tae Hee Kim, Eun Young Jang, Nyun Jong Lee, Deung Jang Choi, Kyung-Jin Lee, Jung-tak Jang, Jin-sil Choi, Seung Ho Moon and Jinwoo Cheon, Nanoparticle Assemblies as Memristors, Nano Lett, 2009, 9 (6), 2229-33.
Yeong Shin Yim, Jin-sil Choi, Seong Bok Jang, Gun Tae Kim, Kyungsoo Park, Chul Hoon Kim, Jinwoo Cheon, and Dong Goo Kim, Pharmacokinetic properties and tissue storage of FITC conjugated SA-MnMEIO nanoparticles in mice , Current Applied Physics, 2009, 9 (4), e304-e307.
Kim, J. G. Seo, J. W. Cheon, J. Kim, Y. J., Rietveld Analysis of Nano-crystalline MnFe2O4 with Electron Powder Diffraction, Bulletin of the Korean Chemical Society, 2009, 30 (1), 183-187.
Choi J, Park J, Nah H, Woo S, Oh J, Kim K, Cheon G, Chang Y, Yoo J, Cheon J, A hybrid Nanoparticle Probe for dual-modality positron emisson tomography and magnetic resonance imaging, Angewandte Chemie, 2008, 120 (33), 6355-8.
Jun, Y. W. Lee, J. H. Cheon, J., Chemical design of nanoparticle probes for high-performance magnetic resonance imaging, Angewandte Chemie-International Edition, 2008, 47 (28), 5122-5135.
Choi, J. S. Choi, H. J. Jung, D. C. Lee, J. H. Cheon, J., Nanoparticle assisted magnetic resonance imaging of the early reversible stages of amyloid beta self-assembly, Chemical Communications, 2008, 19, 2197-9.
Jun Y, Seo J, Cheon J, Nanoscaling laws of magnetic Nanoparticles and their applicabilities in biomedical sciences, Account of Chemical Research, 2008, 41 (2), 179-89.
Park, S. W. Jang, J. T. Cheon, J. Lee, H. H. Lee, D. R. Lee, Y., Shape-dependent compressibility of TiO2 anatase nanoparticles, Journal of Physical Chemistry C, 2008, 112 (26), 9627-9631.
Lee, J. H. Huh, Y. M. Jun, Y. Seo, J. Jang, J. Song, H. T. Kim, S. Cho, E. J. Yoon, H. G. Suh, J. S. Cheon, J., Artificially engineered magnetic nanoparticles for ultra-sensitive molecular imaging, Nature Medicine, 2007, 13 (1), 95-99.
Seo, J. W. Chung, H. Kim, M. Y. Lee, J. Choi, I. H. Cheon, J., Development of water-soluble single-crystalline TiO2 nanoparticles for photocatalytic cancer-cell treatment, Small, 2007, 3 (5), 850-853.
Young-wook Jun, Jin-sil Choi, Jinwoo Cheon, Heterostructured Magnetic Nanoparticles: Their Versatility and High Performance Capabilities, Chem Commun , 2007, 1203-1214.
Jong-Il Park, Young-wook Jun, Jin-sil Choi; Jinwoo Cheon, Highly Crystalline Anisotropic SuperStructures via Magnetic Field Induced Nanoparticle Assembly, Chem. Commun. , 2007, 5001-5003.
Yong-Min Huh, Eun-Sook Lee, Jae-Hyun Lee, Young-wook Jun, Pyung-Hwan Kim, Chae-Ok Yun, Joo-hang Kim, Hybrid Nanoparticles for Magnetic Resonance Imaging of Target-Specific Viral Gene Delivery, Adv. Mater. , 2007, 19 (20), 3109-3112.
Park, J. Choi, I. Lee, J. Lee, T. Moon, D. Cheon, J. Choi, J., In vitro effects of iron oxide nanoparticles in human monocytic cells, Toxicology Letters, 2007, 172, S151-S152.
Young Ki Hahn, Zongwen Jin, Joo H. Kang, Eunkeu Oh, Min-Kyu Han, Hak-Sung Kim, Jung-Tak Jang, Jae-Hyub Lee, Jinwoo Cheon, Seung Hyun Kim, Hae-Sim Park, and Je-Kyun Park, Magnetophoretic Immunoassay of Allergen-Specific IgE in an Enhanced Magnetic Field Gradient, Anal. Chem, , 2007, 79 (6), 2214-2220.
Seo Jung-Wook, Jun Young-Wook, Park Seung-Won, Nah Hyunsoo, Moon Taeho, Park Byungwoo, Kim Jin-Gyu, Kim Youn Joong, Cheon Jinwoo, Two-dimensional nanosheet crystals, Angewandte Chemie (International ed. in English), 2007, 46 (46), 8828-31.
Jae-Hyun Lee, Yong-Min Huh, Young-wook Jun, Jung-wook Seo, Jung-tak Jang,Ho-Taek Song, Sungjun Kim, Eun-Jin Cho, Ho-Geun Yoon, Jin-Suck Suh and Jinwoo Cheon, Artificially Engineered Magnetic Nanoparticles for Ultra-Sensitive Molecular Imaging, Nature Medicine, 2006, 13, 95-99.
Choi Jin-sil, Jun Young-wook, Yeon Soo-In, Kim Hyoung Chan, Shin Jeon-Soo, Cheon Jinwoo, Biocompatible heterostructured nanoparticles for multimodal biological detection, Journal of the American Chemical Society, 2006, 128 (50), 15982-3.
Jun, C. H. Park, Y. J. Yeon, Y. R. Choi, J. R. Lee, W. R. Ko, S. J. Cheon, J., Demonstration of a magnetic and catalytic Co@Pt nanoparticle as a dual-function nanoplatform, Chemical Communications, 2006 (15), 1619-1621.
Lee Jae-Hyun, Jun Young-Wook, Yeon Soo-In, Shin Jeon-Soo, Cheon Jinwoo, Dual-mode nanoparticle probes for high-performance magnetic resonance and fluorescence imaging of neuroblastoma, Angewandte Chemie (International ed. in English), 2006, 45 (48), 8160-2.
Cheon Jinwoo, Park Jong-Il, Choi Jin-sil, Jun Young-wook, Kim Sehun, Kim Min Gyu, Kim Young-Min, Kim Youn Joong, Magnetic superlattices and their nanoscale phase transition effects, Proceedings of the National Academy of Sciences of the United States of America, 2006, 103 (9), 3023-7.
Young-wook Jun, Jung-tak Jang, Jinwoo Cheon, Nanocrystals and Their Biomedical Applications , Bull. Kor. Chem. Soc. , 2006 (27), 961-971.
Lee Hee-Yoon, Ryu Suyoung, Kang Hongkyu, Jun Young-Wook, Cheon Jinwoo, Selective catalytic activity of ball-shaped Pd@MCM-48 nanocatalysts, Chemical communications (Cambridge, England), 2006, 45 (12), 1325-7.
Jun Young-wook, Choi Jin-sil, Cheon Jinwoo, Shape control of semiconductor and metal oxide nanocrystals through nonhydrolytic colloidal routes, Angewandte Chemie (International ed. in English), 2006, 45 (21), 3414-39.
Jae-Hyun Lee, Sun Bae Lee, Young-wook Chang, Sung-In Kim, Jinwoo Cheon, Kyung-Hwa Yoo , DNA Linker Controlled Single Electron Tunneling Behavior of Nanoparticle Assembly, J. Appl. Phys. , 2005 (98), 084315.
Lee, J. H. Cheon, J. Lee, S. B. Chang, Y. W. Kim, S. I. Yoo, K. H., DNA linker controlled single electron tunneling behavior of nanoparticle assembly, Journal of Applied Physics, 2005, 98 (8), -.
Seo Jung-Wook, Jun Young-Wook, Ko Seung Jin, Cheon Jinwoo, In situ one-pot synthesis of 1-dimensional transition metal oxide nanocrystals, The journal of physical chemistry. B, 2005, 109 (12), 5389-91.
Huh Yong-Min, Jun Young-wook, Song Ho-Taek, Kim Sungjun, Choi Jin-sil, Lee Jae-Hyun, Yoon Sarah, Kim Kyung-sup, Shin Jeon-Soo, Suh Jin-Suck, Cheon Jinwoo, In vivo magnetic resonance detection of cancer by using multifunctional magnetic nanocrystals, Journal of the American Chemical Society, 2005, 127 (35), 12387-91.
Park Jong-Il, Lee Woo-Ram, Bae Sung-Soo, Kim Youn Joong, Yoo Kyung-Hwa, Cheon Jinwoo, Kim Sehun, Langmuir monolayers of Co nanoparticles and their patterning by microcontact printing, The journal of physical chemistry. B, 2005, 109 (27), 13119-23.
Choi Joon-Rak, Oh Sang Jun, Ju Honglyoul, Cheon Jinwoo, Massive fabrication of free-standing one-dimensional Co/Pt nanostructures and modulation of ferromagnetism via a programmable barcode layer effect, Nano letters, 2005, 5 (11), 2179-83.
Bae, S. S. Lim, D. K. Park, J. I. Cheon, J. Jeon, I. C. Kim, S., Monolayer assembly and striped architecture of Co nanoparticles on organic functionalized Si surfaces, Applied Physics a-Materials Science & Processing, 2005, 80 (6), 1305-1310.
Jun Young-Wook, Huh Yong-Min, Choi Jin-Sil, Lee Jae-Hyun, Song Ho-Taek, Kim Sungjun, Yoon Sarah, Kim Kyung-Sup, Shin Jeon-Soo, Suh Jin-Suck, Cheon Jinwoo, Nanoscale size effect of magnetic nanocrystals and their utilization for cancer diagnosis via magnetic resonance imaging, Journal of the American Chemical Society, 2005, 127 (16), 5732-3.
Jun, Y. W. Seo, J. W. Oh, S. J. Cheon, J., Recent advances in the shape control of inorganic nano-building blocks, Coordination Chemistry Reviews, 2005, 249 (17-18), 1766-1775.
Lee Woo-Ram, Kim Min Gyu, Choi Joon-Rak, Park Jong-Il, Ko Seung Jin, Oh Sang Jun, Cheon Jinwoo, Redox-transmetalation process as a generalized synthetic strategy for core-shell magnetic nanoparticles, Journal of the American Chemical Society, 2005, 127 (46), 16090-7.
Song Ho-Taek, Choi Jin-sil, Huh Yong-Min, Kim Sungjun, Jun Young-wook, Suh Jin-Suck, Cheon Jinwoo, Surface modulation of magnetic nanocrystals in the development of highly efficient magnetic resonance probes for intracellular labeling, Journal of the American Chemical Society, 2005, 127 (28), 9992-3.
Jun, Y. W. Lee, J. H. Choi, J. S. Cheon, J., Symmetry-controlled colloidal nanocrystals: Nonhydrolytic chemical synthesis and shape determining parameters, Journal of Physical Chemistry B, 2005, 109 (31), 14795-14806.
Park Jong-Il, Kim Min Gyu, Jun Young-Wook, Lee Jae Sung, Lee Woo-Ram, Cheon Jinwoo, Characterization of superparamagnetic "core-shell" nanoparticles and monitoring their anisotropic phase transition to ferromagnetic "solid solution" nanoalloys, Journal of the American Chemical Society, 2004, 126 (29), 9072-8.
Jinwoo Cheon, NanoCrystals: Building Blocks for Nanotechnology, J. Ind. Eng. Chem. , 2004 (15), 1.
Bae, S. S. Lim, D. K. Park, J. I. Lee, W. R. Cheon, J. Kim, S., Selectively assembled Co nanoparticle stripes prepared by covalent linkage and microcontact printing, Journal of Physical Chemistry B, 2004, 108 (8), 2575-2579.
Cheon Jinwoo, Kang Nam-Jung, Lee Sang-Min, Lee Jae-Hyun, Yoon Ji-Hyun, Oh Sang Jun, Shape evolution of single-crystalline iron oxide nanocrystals, Journal of the American Chemical Society, 2004, 126 (7), 1950-1.
Lee, S. M. Cho, S. N. Cheon, J., Anisotropic shape control of colloidal inorganic nanocrystals, Advanced Materials, 2003, 15 (5), 441-444.
Huh, Y. Lee, J. Y. Cheon, J. Hong, Y. K. Koo, J. Y. Lee, T. J. Lee, C. J., Controlled growth of carbon nanotubes over cobalt nanoparticles by thermal chemical vapor deposition, Journal of Materials Chemistry, 2003, 13 (9), 2297-2300.
Hong Young-Kyu, Bahng Jae Ho, Lee Geunseop, Kim Hanchul, Kim Wondong, Lee Sekyung, Koo Ja-Yong, Park Jong-Il, Lee Woo-ram, Cheon Jinwoo, Facile fabrication of 2-dimensional arrays of sub-10 nm single crystalline Si nanopillars using nanoparticle masks, Chemical communications (Cambridge, England), 2003, 125 (24), 3034-5.
Zaretskiy, S. N. Hong, Y. K. Ha, D. H. Yoon, J. H. Cheon, J. Koo, J. Y., Growth of carbon nanotubes from Co nanoparticles and C2H2 by thermal chemical vapor deposition, Chemical Physics Letters, 2003, 372 (1-2), 300-305.
Jun Young-Wook, Casula Maria F, Sim Jae-Hwan, Kim Sang Youl, Cheon Jinwoo, Alivisatos A Paul, Surfactant-assisted elimination of a high energy facet as a means of controlling the shapes of TiO2 nanocrystals, Journal of the American Chemical Society, 2003, 125 (51), 15981-5.
Jun Young-wook, Jung Yoon-young, Cheon Jinwoo, Architectural control of magnetic semiconductor nanocrystals, Journal of the American Chemical Society, 2002, 124 (4), 615-9.
Lee Sang-Min, Jun Young-wook, Cho Sung-Nam, Cheon Jinwoo, Single-crystalline star-shaped nanocrystals and their evolution: programming the geometry of nano-building blocks, Journal of the American Chemical Society, 2002, 124 (38), 11244-5.
Kim Yong-Ho, Jun Young-Wook, Jun Byung-Ho, Lee Sang-Min, Cheon Jinwoo, Sterically induced shape and crystalline phase control of GaP nanocrystals, Journal of the American Chemical Society, 2002, 124 (46), 13656-7.
Park Jong-Il, Kang Nam-Jung, Jun Young-Wook, Oh Sang Jun, Ri Heong-Chul, Cheon Jinwoo, Superlattice and magnetism directed by the size and shape of nanocrystals, Chemphyschem : a European journal of chemical physics and physical chemistry, 2002, 3 (6), 543-7.