Pitt | Swanson Engineering
Prof. Sung Kwon Cho
Mechanical Engineering & Materials Science
Cho, Sung Kwon
Faculty
Associate Professor
Office: 538G Benedum Hall
download vcard

Ph. D. in Mechanical Engineering, Seoul National University, 1998

M.S. in Mechanical Engineering, Seoul National University, 1992

B.S. in Mechanical Engineering, Seoul National University, 1990

Postdoctoral Training in Mechanical and Aerospace Engineering, UCLA, 1999-2003

Microfluidics research areas towards applications of lab-on-a-chip (loc) systems and energy

(2011) PITT Innovator Award.

(2010) PITT Innovator Award.

(2009) Sang Kug Chung (Ph.D. student) selected as best RA in the 2008-2009 academic year.

(2007) Honored as Outstanding Faculty by the Pitt Engineering Student Council.

(2004) Best Presentation Award of Mentored Student in Pitt (Daniel Armanius).

(1998) Korea Science Engineering Foundation Overseas Postdoctoral Award.

Byun, S.H., and Cho, S.K., In press, "Wireless powering of electrowetting-on-dielectric (EWOD) microfluidics," Journal of Heat Transfer Engineering.

Yoon, M.G., Byun, S.H., and Cho, S.K., 2012, "Inherent amplitude modulation of AC-EWOD (Electrowetting on Dielectric) droplet," Lab Chip, Manuscript submitted for publication.

Yuan, J., and Cho, S.K., In press, "Bio-inspired micro/mini propulsion at air-water interface: a review," Journal of Mechanical Science and Technology.

Cho, S., Byun, S.H., and Yoon, M., 2012, "Wireless EWOD (electrowetting-on-dielectric) device using planar coils," The 16th International Conference on Miniaturized Systems for Chemistry and Life Science, Okinawa, Japan.

Cho, S., and Yuan, J., 2011, "Streaming flows and propulsion by vertically oscillating free surfaces," 64th Annual Meeting of the APS Division of Fluid Dynamics, Baltimore, MD.

Cho, S., 2010, "Electrowetting propulsion," The 7th International Meeting on Electrowetting, Postech, Korea.

Cho, S., Ryu, K., Zueger, J., and Chung, S.K., 2010, "Underwater propulsion using AC-electrowetting-actuated oscillating bubbles for swimming robots," The 23rd International Conference on Micro Electro Mechanical Systems (MEMS 2010), pp. 160-163, Hong Kong, China.

Chung, S.K., Rhee, K., and Cho, S.K., 2010, "Bubble actuation by electrowetting-on-dielectric (EWOD) and its applications: a review," International Journal of Precision Engineering and Manufacturing, vol.11, no.6, pp. 1-16.

Ryu, K., Chung, S.K., and Chi, S.K., 2010, "Micropumping by an acoustically excited oscillating bubble for automated implantable microfluidic devices," Journal of the Association for Laboratory Automation, vol.15, pp. 163-171.

Cho, S., and Chung, S.K., 2009, "Capturing, carrying and releasing of micro-objects by AC-electrowetting=actuated oscillating bubbles.," The 15th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers 2009), Denver, Colorado.

Cho, S., and Chung, S.K., 2009, "Propulsion by acoustically excited oscillating bubbles for biomedical micro/mini robots swimming inside human body," The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, Jeju, South Korea.

Cho, S., and Zhao, Y., 2009, "Opening ration effect on electrowetting droplet actuation on perforated membranes," The 7th International ASME Conference on Nanochannels, Microchannels, and Minichannels (ICNMM 2009), Pohang, South Korea.

Cho, S., Chung, S.K., and Ryu, K., 2009, "A surface-tension-driven propulsion and rotation principle for water-floating mini/micro robots," The 22nd International Conference on Micro Electro Mechanical Systems (MEMS 2009), pp. 1083-1086, Sorrento, Italy.

Cho, S., Wang, Y., Leonard, J., Phuoc, T., Soong, Y., and Chyu, M., 2009, "Cooling Performance of nanofluids in a microchannel heat sink," The ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference, Shanghai, China.

Chung, S.K., and Cho, S.K., 2009, "3-D Manipulation of millimeter- and micro-sized objects using an acoustically-excited oscillating bubble," Microfluidics and Nanofluidics, vol.6, pp. 261-265.

Chung, S.K., Ryu, K., and Cho, S.K., 2009, "Electrowetting propulsion for water-floating mini/micro robots," Applied Physics Letter, vol.95, p. 014107.

Chung, S.K., Zhao, Y., and Cho, S.K., 2009, "Electrowetting-on-Dielectric (EWOD) Microfluidic Devices," in Lab on a Chip (LOC) Technologies and Applications, K.E. Herold, and A. Rasooly, eds., Horizon Scientific Press and Caister Academic Press, pp. 211-230.

Cho, S., and Chung, S.K., 2008, "2-D and 3-D manipulations of objects using acoustically-excited oscillating bubbles," The US-Korea Conference on Science, Technology, and Entrepreneurship (UKC), San Diego, CA.

Cho, S., and Chung, S.K., 2008, "Micro/mini tweezers using an oscillating bubble for biological object manipulation," The 16th International Conference on Mechanics in Medicine and Biology (ICMMB 2008), Pittsburgh, USA.

Cho, S., and Chung, S.K., 2008, "On-chip creation and elimination of microbubbles by electrolysis and EWOD for micro-object manipulator," The 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences (uTAS 2008), pp. 808-810, San Diego, CA.

Cho, S., and Moon, H., 2008, "Electrowetting on dielectric (EWOD): new tool for bio/micro fluid handling," The BioChip Journal, vol.2, no.2, pp. 79-96.

Cho, S., and Zhao, Y., 2008, "Droplet manipulation on high-opening micro filter meshes," The 21st International Conference on Micro Electro Mechanical Systems (MEMS 2008), pp. 645-648, Tucson, AZ, USA.

Cho, S., Ryu, K., and Chung, S.K., 2008, "Separation and collection of microparticles using oscillating bubbles," The 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences (uTAS 2008), pp. 1471-1473, San Diego, CA.

Chung, S.K., and Cho, S.K., 2008, "On-chip manipulation of objects using mobile oscillating bubbles," Journal of Micromechanics and Microengineering, vol.18, p. 125024.

Chung, S.K., Zhao, Y., and Cho, S.K., 2008, "On-chip creation and elimination of microbubbles integrated with EWOD actuations toward micro-object manipulator," Journal of Micromechanics and Microengineering, vol.18, p. 095009.

Park, H.I., Sanchez, D., Cho, S.K., and Yun, M., 2008, "Bacterial communities on electron-beam Pt-deposited electrodes in a mediator-less microbial fuel cell," Journal of Environmental Science and Technology, vol.42, pp. 6243-6249.

Zhao, Y., Chung, S.K., Yi, U., and Cho, S.K., 2008, "Droplet manipulation and microparticle sampling on perforated microfilter membranes," Journal of Micromechanics and Microengineering, vol.18, p. 025030.

Cho, S., and Chung, S.K., 2007, "Oscillating mobile bubbles for microfluidic mixing enhancement," The 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences (uTAS 2007), pp. 913-915, Paris, France.

Cho, S., Chung, S.K., and Yi, U., 2007, "Micro post-structured surfaces for bubble detachment," The 11th International Conference on Miniatrurized Systems for Chemistry and Life Sciences (uTAS 2007), pp. 1634-1636, Paris, France.

Cho, S., Chung, S.K., Zhao, Y., and Yi, U.-., 2007, "Micro bubble fluidics by EWOD and ultrasonic excitation for micro bubble tweezers," The 20th International Conference on Micro Electro Mechanical Systems (MEMS 2007), pp. 31-34, Kobe, Japan.

Cho, S., Clark, W.W., Boyerinas, B., Beckman, E., Bielawski, C., and Weiland, L., 2007, "On a path toward structures with reconfigurable circulatory systems," Proceedings of SPIE Volume: 6526, Behavior and Mechanics of Multifunctional Composite Materials 2007, 65261H.

Cho, S., Ryu, K., and Chung, S.K., 2007, "A new micropumping principle by acoustically excited oscillating bubble," The 11th International Conference on Miniatrurized Systems for Chemistry and Life Sciences (uTAS 2007), pp. 300-302, Paris, France.

Cho, S., Wang, Y.Z., and Zhao, Y., 2007, "In-droplet magnetic beads concentration and separation for digital microfluidics," The 14th International Conference on Solid-State Sensors, Actuators and Microsystems (Transducer 2007), pp. 711-714, Lyon, France.

Cho, S., Zhao, Y., and Yi, U.-., 2007, "Highly efficient in-droplet particle concentration and separation by twDEP and EWOD for digital microfluidics," The 20th International Conference on Micro Electro Mechanical Systems (MEMS 2007), pp. 537-540, Kobe, Japan.

Cho, S., Zhao, Y., Chung, S.K., and Yi, U., 2007, "Micro particle sampling on microfabricated perforated filter membranes," The 11th International Conference on Miniatrurized Systems for Chemistry and Life Sciences (uTAS 2007), pp. 847-849, Paris, France.

Cho, S.K., Zhao, Y., and Kim, C., 2007, "Concentration and binary separation of micro particles for droplet-based digital microfluidics," Lab Chip, vol.7, pp. 490-498.

Park, H.I., Mushtaq, U., Perello, D., Lee, I., Cho, S.K., and Yun, M., 2007, "Effective and low-cost platinum electrodes for microbial fuel cells deposited by electron beam evaporation," Energy and Fuels, vol.21, pp. 2984-2990.

Wang, Y., Zhao, Y., and Cho, S.K., 2007, "Efficient in-droplet separation of magnetic particles for digital microfluidics," Journal of Micromechanics and Microengineering, vol.17, pp. 2148-2156.

Zhao, Y., and Cho, S.K., 2007, "Micro air bubble manipulation by electrowetting on dielectric (EWOD): transporting, splitting, merging and eliminating of bubbles," Lab Chip, vol.7, pp. 273-280.

Zhao, Y., Yi, U., and Cho, S.K., 2007, "Micro particle concentration and separation by travelling wave dielectrophoresis (twDEP) for digital microfluidics," Journal of Microelectromechanical Systems, vol.16, no.6, pp. 1472-1481.

Cho, S., and Zhao, Y., 2006, "A criterion on splitting a micro air bubble squeezed between two solid plates," 59th Annual Meeting of the APS Division of Fluid Dynamics, Tampa Bay, Florida.

Cho, S., Chung, S.K., and Zhao, Y., 2006, "Micro particle sampling on a perforated filter membrane by EWOD-actuated droplet sweeping," The 10th International Conference on Miniatrurized Systems for Chemistry and Life Science (uTAS 2006), pp. 31-33, Tokyo, Japan.

Cho, S., Zhao, Y., and Yi, U.C., 2006, "In-droplet particle separation by traveling wave dielectrophoresis (twDEP) and EWOD," The Solid State Sensors, Actuators and Microsystems Workshop, (Hilton Head 2006), pp. 181-184, Hilton Head Island, South Carolina, USA.

Jewart, C., McMillen, B., Cho, S.K., and Chen, K.P., 2006, "X-probe flow sensor using self-powered active fiber Bragg gratings," Sensors and Actuators A, vol.127, pp. 63-68.

Zhao, Y., and Cho, S.K., 2006, "Microparticle sampling by electrowetting-actuated droplet sweeping," Lab Chip, vol.6, pp. 137-144.

Cho, S., and Zhao, Y., 2005, "A micro particle sampler using electrowetting-actuated droplet sweeping," The 13th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers 2005), pp. 129-134, Seoul, Korea.

Cho, S., and Zhao, Y., 2005, "Micro Air bubble manipulation by electrowetting principle: transporting, merging and eliminating," Proceedings of 2005 International Conference on Microchannels and Minichannels (ICMM2005-75154), Toronto, Canada.

Cho, S., and Zhao, Y., 2005, "Micro bubble manipulation towards single cell handling tool," The 2005 IEEE International Conference on Robotics and Biomimetics (IEEE ROBIO 2005), pp. 269-273, Hong Kong SAR and Macau SAR.

Hsiai, T.K., Cho, S.K., Wong, P.K., Ing, M.H., Salazar, A., Hama, S., Navab, M., Demer, L.L., and Ho, C.M., 2004, "Micro sensors: linking real-time oscillatory shear stress with vascular inflammatory responses," Annals of Biomedical Engineering, vol.32, pp. 189-201.

Cho, S., and Kimg, C.J., 2003, "Particle separation and concentration control for digital microfluidics," The 16th IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2003), pp. 686-689, Kyoto, Japan.

Cho, S.K., Moon, H., and Kim, C.J., 2003, "Creating, transporting, cutting and merging of liquid droplets by electrowetting-based actuation for digital microfluidic circuits," Journal of Microelectromechanical Systems, vol.12, pp. 70-80.

Hsiai, T.K., Cho, S.K., Wong, P.K., Ing, M., Salazar, A., Scvarrian, A., Navab, M., Demer, L.L., and Ho, C.M., 2003, "Monocyte recruitments to endothelial cells in response to oscillatory shear stress," The Federation of American Societies for Experimental Biology (FASEB) Journal, vol.17, pp. 1648-1657.

Cho, S., Fan, S.K., Moon, H., and Kim, C.J., 2002, "Towards digital microfluidic circuits: creating, transporting, cutting and merging liquid droplets by electrowetting-based actuation," The 2002 IEEE 15th International Conference on Micro Electro Mechanical Systems (MEMS 2002), pp. 32-35, Las Vegas, USA.

Cho, S., Hsiai, T., Reddy, P., Wong, P., Hama, S., Navab, M., Demer, L.L., Fogelman, A.M., and Ho, C.M., 2002, "Endothelial Cells: The living sensors and actuators," International MEMEs and Nano Conference, pp. 169-172, Kunming, China.

Cho, S., Hsiai, T.K., Navab, M., Reddy, S., and Ho, C.M., 2002, "Microsensors to characterize shear stress regulating inflammatory responses in the arterial bifurcations," The 2nd Joint EMBS-BMES Conference, Houston, TX.

Cho, S., Hsiai, T.K., Wong, P.K., Ing, M., Navab, M., Reddy, S., Demer, L.L., and Ho, C.M., 2002, "Bio-MEMS sensors for real-time shear stress on endothelial cell dynamics," The 2nd Joint EMBS-BMES Conference, Houston, TX.

Hsiai, T.K., Cho, S.K., Honda, H.M., Hama, S., Navab, M., Demer, L.L., Fogelman, A.M., and Ho, C.M., 2002, "Endothelial cell dynamics under pulsating flows: significance of high-vs. low shear stress slew rates," Annals of Biomedical Engineering, vol.30, no.5, pp. 646-656.

Hsiai, T.K., Cho, S.K., Yang, J.M., Yang, X., Tai, Y.C., and Ho, C.M., 2002, "Pressure drops of water flow through micromachined particle filters," ASME Journal of Fluids Engineering, vol.124, no.4, pp. 1053-1056.

Moon, H., Cho, S.K., Garrell, R.L., and Kim, C.J., 2002, "Low voltage electrowetting-on-dielectric," Journal of Applied Physics, vol.92, no.7, pp. 4080-4087.

Cho, S., Moon, H., Fowler, J., and Kim, C.J., 2001, "Splitting a liquid droplet for electrowetting-based microfluidics," Proceedings of 2001 ASME International Mechanical Engineering Congress and Exposition (MEMS subdivision), MEMS-23830, New York, NY.

Hsiai, T.K., Cho, S.K., Reddy, S., Hama, S., Navab, M., Demer, L., Honda, H.M., and Ho, C.M., 2001, "Pulsatile flow regulates monocyte adhesion to oxidized lipid-induced endothelial cells," Arteriosclerosis Thrombosis and Vascular Biology, vol.21, pp. 1770-1776.

Cho, S., Hsiai, T., Hama, S., Honda, H., Navab, M., and Ho, C., 2000, "Pulsatile flow slew rate modulate endothelial cell remodeling," 2000 Annual Fall Meeting of the Biomedical Engineering Society, Seattle, Washington.

Cho, S., Hsiai, T., Hama, S., Linda, J., Honda, H., Demer, L., Navab, M., and Ho, C., 2000, "Pulsatile vs. oscillatory flow profiles induce opposite effects on monocyte adhesion to endothelialized glass surface," 2000 Annual Fall Meeting of the Biomedical Engineering Society, Seattle, Washington.

Cho, S., Hsiai, T., Honda, H., Hama, S., Jin, L., Reddy, S., Navab, M., Demer, L., Fogelman, A., and Ho, C.M., 2000, "Pulsatile vs. oscillating flows induce an opposite effect on monocyte binding to ox-PAPC treated endothelial cells," American Heart Association 72nd Scientific Sessions, New Orleans, Louisiana.

Cho, S., Hsiai, T., Yang, J., Tai, Y., and Ho, C., 2000, "Creeping flow across MEMS filters for bio-separation," 2000 Annual Fall Meeting of the Biomedical Engineering Society, Seattle, Washington.

Cho, S., Yoo, J.Y., and Choi, H., 2000, "Resonance in an axisymmetric jet under controlled helical fundamental and axisymmetric subharmonic forcing," AIAA Journal, vol.38, no.3, pp. 434-441.

Cho, S., Yoo, J.Y., and Choi, H., 1998, "Resonance in axisymmetric jet under controlled helical fundamental axisymmetric subharmonic forcing," The 36th Aerospace Sciences Meeting & Exhibit, Reno, NV.

Cho, S., Yoo, J.Y., and Choi, H., 1998, "Vortex pairing in an axisymmetric jet using two-frequency acoustic forcing at low to moderate Strouhal numbers," Experiments in Fluids, vol.25, pp. 305-315.

Chung, S.K., and Cho, S.K., "Microparticle manipulation using electrowetting-driven bubble oscillations," Journal of Adhesion Science and Technology, vol.26, no.12-17, pp. 1965-1983.

2013, "Local Organizing Committee," 66th Annual Meeting of the aPS Division of Fluid Dynamics, Pittsburgh, PA.

2013, "Technical Committee," 2013 IEEE International Conference on Nano/Micro Engineered and Molecular Systems (IEEE-NEMS 2013), Suzhou, China.

Cho, S., 2012, "Microbubble Fluidics," Department of Mechanical Engineering, Cheonbook National University.

2011, "Topic Organizer," 2011 IMECE conference (Bionanofluidics area).

Cho, S., 2010, "Drops and Bubbles for Micro/Bio Fluidics Devices," Department of Bioengineering, University of Pittsburgh.

2010, "Session Chair," 7th International meeting on electrowetting, POSTECH, Korea.

Cho, S., 2009, "Functional Bubbles for Microobjects Manipulations and Propulsion," Department of Electrical Engineering, University of Pittsburgh.

Cho, S., 2009, "Functional Bubbles for Microobjects manipulations and Propulsion," Korean Institute of Machinery and Materials.

Cho, S., 2009, "Microfluidic Propulsion," Department of Physics, Indiana University of Pennsylvania.

2009, "Interface Oscillations for Microfluidic Applications," Seoul National University, Seoul, Korea.

2009, "Track Chair," International Conference on Nanochannels, Microchannels, and Minichannels (ICNMM), track in "Digital Microfluidics".

Cho, S., 2008, "Manipulation of objects using EWOD-actuated oscillating bubbles," The 6th International Meeting on Electrowetting, UCLA, LA, CA.

Cho, S., 2008, "Manipulations and Fluidics of Microbubbles," University of Texas, Arlington.

Cho, S., 2008, "Microbubble Manipulations and their Fluidics," City University of New York.

Cho, S., 2008, "Microbubble Manipulations and their Fluidics," Stevens Institute of Technology.

Cho, S., 2007, "Microbubble Manipulations and their Fluidics," Korea University, Korea.

Cho, S., 2007, "Microfluidics (droplets and bubbles)," National Science Foundation (NSF) Workshop for Frontiers in Transport Phenomena Research & Education, University of Connecticut in Storrs.

Cho, S., 2005, "Droplet/Bubble Microfluidics," Yonsei University, Korea.

Cho, S., 2005, "Overview of Microfluidics," AEA Technology Engineering Services, Inc..

2005, "Session Chairs," 2005 IEEE International Conference on Robotics and Biomimetics (IEEE ROBIO 2005), International Meeting on electrowetting, Hong Kong SAR and Macau SAR.

Cho, S., 2004, "Digital Microfluidics for Lab-on-a-Chip," International Symposium on Micro Thermo Fluidic Devices, Korea.

Cho, S., 2004, "Digital Microfluidics," Korea Institute of Machines and Metals (KIMM) and SAMSUNG Co., Korea.

Cho, S., and Clark, W.W., 2010, "Microscale pH sensor," 61/093,680.

Cho, S., Zenati, M., Clark, W.W., Sclabassi, R.J., Sun, M., and Hu, H., 2008, "Implantable device, system including same, method utilizing same," 12/203, 041.