California NanoSystems Institute

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Chang-Jin Kim, Ph.D.

Professor, Mechanical and Aerospace Engineering

Member, Neuroengineering Training Program, NanoBiotechnology and Biomaterials, NanoMechanical and Nanofluidic Systems, California NanoSystems Institute

Education:

Degrees:

Ph.D., University of California, Berkeley, 1991
M.S., Iowa State University , 1985
B.S., Seoul National University, 1981

Contact Information:

Email Address:	cjkim@ucla.edu
Work Email Address:	cjkim@seas.ucla.edu

Mailing Address:	Department of Mechanical and Aerospace Engineering Los Angeles, CA 90095 UNITED STATES

Home Page:	http://cjmems.seas.ucla.edu/
ARR Papers:	http://www.cnsi.ucla.edu/arr/personnel-papers?personnel_id=113120
Office:	http://www.mae.ucla.edu/academics/faculty/index.htm

Research Interests:

Surface-tension-based micro and nano actuation
Nanotechnologies
Microelectromechanical systems (MEMS)
Full spectrum of micromachining technologies
Micro and nano devices and systems

Technical Research Interest:

Professor Kim's research encompasses: 1) advancing the understanding of physical phenomena in micro/nano scale; 2) broadening and advancing micro/nano fabrication techniques; and 3) developing new micro/nano mechanical devices for applications. A typical research project has all three of the above aspects intertwined, starting with a daring new design concept based on scale effect and ending with demonstration devices for real-world applications. Good examples are the projects using surface tension as a key mechanical element in the design. Surface tension is merely an interesting force in normal scale but a dominant force in the world below a millimeter. A series of demonstration devices span from those using surface tension to passively impede movement, such as bubble check valves, to those controlling surface tension to actively generate motion, such as electrowetting-on-dielectric (EWOD) devices; the latter spawned the new field of digital microfluidics. For nanotechnology, the main interest is formed around mechanical issues. An example is development of novel macro properties by creating intricate 3-D nanostructures. Although all the research projects are based on miniaturization, their application areas are anywhere from biomedical (handheld lab-on-a-chip system, micromachined pins and particles for microarrays), electronics (liquid-metal microswitches), energy (micro fuel cell, 3-D microbatteries), to aerospace (micro cryogenic coolers).

Additional Information:

Chang-Jin "CJ" Kim received the Ph.D. degree in mechanical engineering from the University of California at Berkeley in 1991. He received the B.S. degree from Seoul National University and M.S. from Iowa State University along with the Graduate Research Excellence Award. Upon joining the faculty at UCLA in in 1993, he has developed several MEMS courses and established a MEMS Ph.D. major field in Mechanical and Aerospace Engineering Department. His research is in MEMS and Nanotechnology, including design and fabrication of micro/nano structures, actuators and systems, with a recent focus on the use of surface tension. Prof. Kim is the recipient of the 1995 TRW Outstanding Young Teacher Award and the 1997 NSF CAREER Award.

Prof. Kim served as Chairman of the Micromechanical Systems Panel of the ASME DSC Division and co-organized the MEMS Symposia between 1994 and 1996 for the ASME International Mechanical Engineering Congress & Exposition. He also organized the 1996 ASME Satellite Broadcast Program on MEMS and the 6th IEEE International Conference on Emerging Technologies and Factory Automation. Prof. Kim served in various Technical Program Committees, including the IEEE MEMS Conference, Transducers, and the SPIE Symposium on Micromachining and Microfabrication. Currently he is serving in the U.S. Army Science Board as Consultant, in the Executive Committee of ASME MEMS Subdivision, and as a Subject Editor for the IEEE/ASME Journal of MEMS.

Selected Publications:

Choi, C. H. Heydarkhan-Hagvall, S. Wu, B. M. Dunn, J. C. Y. Beygui, R. E. Kim, C. J. , Cell growth as a sheet on three-dimensional sharp-tip nanostructures, Journal of Biomedical Materials Research Part A, 2009, 89A (3), 804-817.

W. Shen, R. T. Edwards, and C.-J Kim,, "Electrostatically-Actuated Metal-Droplet Microswitches Integrated on CMOS Chip", J. Microelectromechanical Systems, 2006, (In Press).

H. Moon, A. R. Wheeler, R. L. Garrell, J. A. Loo, and C.-J. Kim,, "Integrated Digital Microfluidic Chip for Multiplexed Proteomic Sample Preparation and Analysis by MALDI-MS", Lab on a Chip, 2006, (In Press).

C.-H. Choi and C.-J. Kim,, "Large slip of aqueous liquid flow over a nano-engineered super-hydrophobic surface", Physics Review Letters, 2006, Vol. 96, 066001.

J. Ok, Y.-W. Lu, and C.-J. Kim,, "Pneumatically Driven Microcage for Microbe Manipulation in a Biological Liquid Environment", J. Microelectricalmechanical Systems , 2006, (In Press).

J. G. F. Tsai, Z. Chen, S. F. Nelson, and C.-J. Kim,, "Selective Surface Treatment of Micro Printing Pin and Its Performance", Applied Physics Letters, 2006, (In Press).

D. D. Meng, J. Kim, and C.-J. Kim, A Degassing Plate with Hydrophobic Bubble Capture and Distributed Venting for Microfluidic Devices, Micromechanics and Microengineering, 2006, Vol. 16, pp. 419-424.

A. R. Wheeler, H. Moon, C. A. Bird, R. R. O. Loo, C.-J. Kim, J. A. Loo, and R. L. Garrell,, "Digital Microfluidics with In-line Sample Purification for Proteomics Analyses with MALDI-MS", Analytical Chemistry, 2005, Vol. 77, No. 2, pp. 534-540.

J.-A. Paik, et al., "Development of Spin Coated Mesoporous Oxide Films for MEMS Structures", J. Electroceramics, 2004, 13, 423-428.

A. R. Wheeler, H. Moon, C.-J. Kim, J. A. Loo, and R. L. Garrell, "Electrowetting-Based Microfluidics for Analysis of Peptide and Proteins by Matrix Assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-MS)", Analytical Chemistry, 2004, 76 (16), 4833-4838.

R. Yokokawa, J.-A. Paik, B. Dunn, N. Kitazawa, H. Kotera, and C.-J. Kim, "Mechanical Properties of Aerogel-Like Thin Films Used for MEMS", J. Micromechanics and Microengineering, 2004, 14, 681-686.

S. K. Cho, H. Moon, and C.-J Kim, Creating, Transporting, Cutting, and Merging Liquid Droplets by Electrowetting-Based Actuation for Digital Microfluidic Circuits", J. MEMS, 2003, 12 (1), 70-80.

J. Lee, H. Moon, J. Fowler, T. Schoellhammer, and C.-J. Kim., "Electrowetting and electrowetting-on-dielectric for microscale liquid handling", Sensors and Actuators , 2002 (A95), 259-268.