1. J. Li, S. Chen, and C.-J. Kim, “Low-Cost and Low-Topography Fabrication of Multilayer Interconnections for Microfluidic Devices”, Journal of Micromechanics and Microengineering, 2020 (In print).
  2. J. Li and C.-J. Kim, “Current commercialization status of electrowetting-on-dielectric (EWOD) digital microfluidics”, Lab on a Chip, 2020. (In print)
  3. H.-K. Kim, M. R. Javed, S. Chen, K. A. Zettlitz, J. Collins, A. M. Wu, C.-J. Kim, R. M. van Dam,  and P. Y. Keng, “On-demand radiosynthesis of N-succinimidyl-4-[18F]fluorobenzoate ([18F]SFB) on an electrowetting-on-dielectric microfluidic chip for 18F-labeling of protein,” RSC Advances, Vol 9, Issue 55, October 2019, pp. 32175–32183. (doi: 10.1039/c9ra06158d)
  4. S. Chen and C.-J. Kim, “Counterbalanced Valve Metal Oxide as a Reliable Dielectric Layer for Electrowetting-on-dielectric Devices”, Sensors and Materials, Vol. 31, No. 9(2), September 2019, pp. 2861–2872. (doi: 10.18494/SAM.2019.2449)
  5. G. Cha, C.-J. Kim, and Y. S. Ju, “Thermal Conductance Switching Based on the Actuation of Liquid Droplets Through the Electrowetting on Dielectric (EWOD) Phenomenon”, Applied Thermal Engineering, Vol. 98, April 2016, pp. 189–195. (doi: 10.1016/j.applthermaleng.2015.11.098)
  6. H.-H. Shen, S.-K. Fan, C.-J. Kim, and D.-J. Yao, “EWOD microfluidic systems for biomedical applications,” Microfluidics and Nanofluidics, Vol. 16, Issue 5 (Special Issue: Microfluidics for Point-of-Care Diagnostics), May 2014, pp. 965-987. (doi: 10.1007/s10404-014-1386-y)
  7. C. Peng, Z. Zhang, C.-J. Kim, and Y. S. Ju, “EWOD (Electrowetting on Dielectric) Digital Microfluidics Powered by Finger Actuation,” Lab on a Chip, Vol. 14, Issue 6, March 2014, pp. 1117-1122. (doi: 10.1039/c3lc51223a)
  8. S. Chen, M. R. Javed, H.-K. Kim, J. Lei, M. Lazari, G. J. Shah, R. M. van Dam, and P. Y. Keng, and C.-J. Kim, “Radiolabelling Diverse Positron Emission Tomography (PET) Tracers Using a Single Digital Microfluidic Reactor Chip,” Lab on a Chip, Vol. 14, Issue 5, March 2014, pp. 902-910. (doi: 10.1039/c3lc51195b)
  9. M. R. Javed, S. Chen, H.-K. Kim, L. Wei, J. Czernin, R. M. van Dam, C.-J. Kim, and P. Y. Keng, “Efficient Radiosynthesis of 3’-deoxy-3’-[18F]fluorothymidine Using Electrowetting-on-Dielectric Digital Microfluidic Chip,” Journal of Nuclear Medicine, Vol. 55, No. 2, February 2014, pp. 321-328. (doi: 10.2967/jnumed.113.121053); Highlighted in D. E. Reichert, “A Digital Revolution in Radiosynthesis,” Invited Perspective of Journal of Nuclear Medicine, Vol. 55, No. 2, February 2014, pp. 181-182. (doi: 10.2967/jnumed.113.132498)
  10. M. R. Javed, S. Chen, J. Lei, J. Collins, M. Sergeev, H.-K. Kim, C.-J. Kim, R. M. van Dam, and P. Y. Keng, “High Yield and High Specific Activity Synthesis of [18F]Fallypride in a Batch Microfluidic Reactor for Micro-PET Imaging,” Chemical Communications, Vol. 50, Issue 10, February 2014, pp. 1192-1194. (doi: 10.1039/c3cc47616b)
  11. A. A. Dooraghi, P. Y. Keng, S. Chen, M. R. Javed, C.-J. Kim, A. F. Chatziioannou, and R. M. van Dam, “Optimization of microfluidic PET tracer synthesis with Cerenkov imaging,” Analyst, Vol. 138, Issue 19, October 2013, pp. 5654–5664 (doi: 10.1039/c3an01113e)
  12. G. J. Shah, H. Ding, S. Sadeghi, S. Chen, C.-J. Kim, and R. M. van Dam, “On-Demand Droplet Loading for Automated Organic Chemistry on Digital Microfluidics,” Lab on a ChipVol. 13, Issue 14, July 2013, pp. 2785–2795. (doi: 10.1039/c3lc41363b)
  13. B. Koo and C.-J. Kim, “Evaluation of Repeated Electrowetting on Three Different Fluoropolymer Top Coatings,” Journal of Micromechanics and Microengineering, Vol. 23, No. 6, June 2013, 067002 (5pp) (doi: 10.1088/0960-1317/23/6/067002)
  14. L.-X. Huang, B. Koo, and C.-J. Kim, “Sputtered–Anodized Ta2O5 as the Dielectric Layer for Electrowetting-on-Dielectric,” Journal of Microelectromechanical Systems, Vol. 22, No. 2, April 2013, pp. 253-255. (doi: 10.1109/JMEMS.2012.2233719)
  15. C.-J. Kim, “Chapter 305: Electrowetting,” Encyclopedia of Nanotechnology, Part 6, Springer-Verlag, 2012, pp. 783-789. (doi: 10.1007/978-90-481-9751-4_305)
  16. W. C. Nelson and C.-J. Kim, “Droplet Actuation by Electrowetting-on-Dielectric (EWOD): A Review,” Journal of Adhesion Science and Technology, Vol. 26, No. 12-17, August 2012, pp. 1747–1771. (doi: 10.1163/156856111X599562)
  17. H. Ding, S. Sadeghi, G. J. Shah, S. Chen, P. Y. Keng, C.-J. Kim, and R. M. van Dam, “Accurate Dispensing of Volatile Reagents on Demand for Chemical Reactions in EWOD Chips,” Lab on a Chip, Vol.12, June 2012, pp. 3331–3340. (doi: 10.1039/c2lc40244k)
  18. S. Sadeghi, H. Ding, G. J. Shah, S. Chen, P. Y. Keng, C.-J. Kim, and R. M. van Dam, “On Chip Droplet Characterization: A Practical, High-Sensitivity Measurement of droplet Impedance in Digital Microfluidics,” Analytical Chemistry, vol. 84, Issue 4, February 2012, pp. 19151923.   (doi: 10.1021/ac202715f)
  19. P. Y. Keng, S. Chen, H. Ding, S. Sadeghi, G. J. Shah, A. Dooraghi, M. E. Phelps, N. Satyamurthy, A. F. Chatziioannou, C.-J. Kim, and R. M. van Dam, “Micro-chemical synthesis of molecular probes on an electronic microfluidic device,” Proceedings of the National Academy of Sciences of the United States of America (PNAS), Vol. 109, No. 3, January 2012, pp. 690-695. (doi: 10.1073/pnas.1117566109)
  20. W. C. Nelson and C.-J. Kim, “Monolithic Fabrication of EWOD Chips for Picoliter Droplets,” Journal of Microelectromechanical Systems, Vol. 20, No. 6, December 2011, pp. 1419-1427. (doi: 10.1109/JMEMS.2011.2167673)
  21. W. C. Nelson, P. Sen, and C.-J. Kim, “Dynamic Contact Angles and Hysteresis under Electrowetting-on-Dielectric,” Langmuir, Vol. 27, Issue 16, July 2011, pp. 10319–10326. (doi: 10.1021/la2018083)
  22. W. C. Nelson, H. P. Kavehpour, and C.-J. Kim, “A Miniature Capillary Breakup Extensional Rheometer by Electrostatically Assisted Generation of Liquid Filaments,” Lab on a Chip, Vol. 11, No. 14, June 2011, pp. 2424-2431. (doi: 10.1039/c0lc00691b)
  23. C.-J. Kim and J. Gong, “Chapter 6. EWOD Droplet Microfluidic Devices Using Printed Circuit Board Fabrication”, in Micro/Nano Technology Systems for Biomedical Applications, Edited by C.-M. Ho, Oxford Press, 2010, pp. 232-265.
  24. W. C. Nelson, I. Peng, G.-A. Lee, J. A. Loo, R. L. Garrell, and C.-J. Kim, “Incubated Protein Reduction and Digestion on an Electrowetting-on-Dielectric Digital Microfluidic Chip for MALDI-MS,” Analytical Chemistry, Vol. 82, No. 23, December 2010, pp. 9932–9937. (doi: 10.1021/ac101833b) (PMCID: PMC2998283)
  25. G. J. Shah, J. L. Veale, Y. Korin, E. F. Reed, H. A. Gritsch, and C.-J. Kim, “Specific Binding and Magnetic Concentration of CD8+ T-Lymphocytes on electrowetting-on-dielectric Platform,” Biomicrofluidics, Vol. 4, Issue 4, December 2010, pp. 044106 (12pp.). (doi: 10.1063/1.3509457)
  26. P. Sen and C.-J. Kim, “A Liquid-Solid Direct Contact Low-Loss RF Micro Switch”, J. Microelectromechanical Systems, Vol. 18, No. 5, October 2009, pp. 990-997. (doi: 10.1109/JMEMS.2009.2029170)
  27. G. J. Shah and C.-J. Kim, “Fluidic conduits for highly efficient purification of target species in EWOD-driven droplet microfluidics”, Lab on a Chip, Vol. 9, Issue 16, August 2009, pp. 2402-2405. (doi: 10.1039/b823541d)
  28. L. Hu, G. Gruner, J. Jenkins, and C.-J. Kim, “Flash dry deposition of nanoscale material thin films”, Journal of Materials Chemistry, Vol. 19, Issue 32, August 2009, pp. 5845-5849. (doi: 10.1039/b905318m)
  29. J. L. Poulos, W. C. Nelson, T.-J. Jeon, C.-J. Kim, and J. J. Schmidt, “Electrowetting on dielectric-based Microfluidics for Integrated Lipid Bilayer Formation and Ion Channel Measurement”, Applied Physics Letters, Vol. 95, Issue 1, July 2009, 013706 (3 pages). (doi: 10.1063/1.3167283)
  30. P. Sen and C.-J. Kim, “Capillary Spreading Dynamics of Electrowetted Sessile Droplets in Air”, Langmuir, Volume 25, Issue 8, April 2009, pp. 4302-4305. (doi: 10.1021/la900077u)
  31. G. J. Shah and C.-J. Kim, “Meniscus-Assisted High-Efficiency Magnetic Collection and Separation for EWOD Droplet Microfluidics”, J. Microelectromechanical Systems, Vol. 18, No. 2, April 2009, pp. 363-375. (doi: 10.1109/JMEMS.2009.2013394)
  32. G. J. Shah, A. T. Ohta, E. P.-Y. Chiou, M. C. Wu, and C.-J. Kim, “EWOD-driven droplet microfluidic device integrating optoelectronic tweezers for individual particle manipulation”, Lab on a Chip, Vol. 9, Issue 12, March 2009, 1732-1739. (doi: 10.1039/b821508a)
  33. P. Sen and C.-J. Kim, “A Fast Liquid-Metal Droplet Microswitch Using EWOD-Driven Contact-Line Sliding”, J. Microelectromechanical Systems, Vol. 18, No. 1, February 2009, pp. 174-185. (doi: 10.1109/JMEMS.2008.2008624)
  34. H. W. Kang, H. J. Sung, T.-M. Lee, D.-S. Kim, and C.-J. Kim, “Liquid Transfer between Two Separating Plates for Micro-Gravure-Offset Printing”, J. Micromechanics and Microengineering, Vol. 19, Issue 1, Jan. 2009, 015025 (9pp). (doi: 10.1088/0960-1317/19/1/015025)
  35. J. Gong and C.-J. Kim, “All-Electronic Droplet Generation On-Chip with Real-Time Feedback Control for EWOD Digital Microfluidics”, Lab on a Chip, Vol. 8, Issue 6, June 2008, pp. 898-906. (doi: 10.1039/b717417a)
  36. J. Gong and C.-J. Kim, “Direct-Referencing Two-Dimensional-Array Digital Microfluidics Using Multi-Layer Printed Circuit Board”, J. Microelectromechanical Systems, Vol. 17, No. 2, April 2008, pp. 257-264. (doi: 10.1109/JMEMS.2007.912698)
  37. H.-W. Lu, F. Bottausci, J. D. Fowler, A. L. Bertozzi, C. Meinhart, and C.-J. Kim, “A Study of EWOD-Driven Droplets by PIV Investigation”, Lab on a Chip, Vol. 8, Issue 3, March 2008, pp. 456-461. (doi: 10.1039/b717141b)
  38. H. Moon and C.-J. Kim, “Chapter 5. Electrowetting: Thermodynamic Foundation and Application to Microdevices,” in Microfluidic Technologies for Miniaturized Analysis Systems, Edited by S. Hardt and F. SchönfeldSpringer, New York, NY2007, pp. 203-239.
  39. H.-W. Lu, K. Glasner, A. L. Bertozzi, and C.-J. Kim, “A Diffuse-Interface Model for Electrowetting Drops in a Hele-Shaw Cell”, J. Fluid Mechanics, Vol. 590, Nov. 2007, pp. 411-435. (doi: 10.1017/S0022112007008154)
  40. S. K. Cho, Y. Zhao, and C.-J. Kim, “Concentration and binary separation of micro particles for droplet-based digital microfluidics”, Lab on a Chip, Vol. 7, Issue. 4, April 2007, pp. 490-498. (doi: 10.1039/b615665g)
  41. Hu, G. Gruner, J. Gong, C.-J. Kim, and B. Hornbostel, “Electrowetting Devices with Transparent Single-Walled Carbon Nanotube Electrodes”,Applied Physics Letters, Vol. 90, Issue 9, February 2007, 093124 (3 pages). (doi: 10.1063/1.2561032)
  42. U.-C. Yi and C.-J. Kim, “Characterization of Electrowetting Actuation on Addressable Single-Side Coplanar Electrodes”, J. Micromechanics and Microengineering, Vol. 16, Aug. 2006, pp. 2053-2059. (doi: 10.1088/0960-1317/16/10/018)
  43. W. Shen, R. T. Edwards, and C.-J Kim, “Electrostatically-Actuated Metal-Droplet Microswitches Integrated on CMOS Chip”, J. Microelectromechanical Systems, Vol. 15, No. 4, Aug. 2006, pp. 879-889. (doi: 10.1109/JMEMS.2006.878877)
  44. 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, Vol. 6, Issue 9, July 2006, pp. 1213-1219. (doi: 10.1039/b601954d)
  45. 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, Vol. 77, No. 2, Jan. 2005, pp. 534-540. (doi: 10.1021/ac048754+)
  46. U.-C. Yi and C.-J. Kim, “Soft Printing of Droplets Pre-Metered by Electrowetting”, Sensors and Actuators A, Vol. 114, No. 2-3, 2004, pp. 347-354. (doi: 10.1016/j.sna.2003.12.003)
  47. 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, Vol. 76, No. 16, Aug. 2004, pp. 4833-4838. (doi: 10.1021/ac0498112)
  48. C.-J. Kim, “Chapter 18: The Use of Surface Tension for the Design of MEMS Actuators”, in Nanotribology: Critical Assessment and Research Needs, Edited by S. M. Hsu and Z. C. Ying, Springer Science+Business Media, New York, 2003, pp. 239-246. (doi: 10.1007/978-1-4615-1023-9)
  49. D. Huh, A. H. Tkaczyk, J. H. Bahng, Y. Chang, H.-H. Wei, B. Grotberg, C.-J. Kim, K. Kurabayashi, and S. Takayama, “Reversible Switching of High-Speed Air-Liquid Two-Phase Flows Using Electrowetting-Assisted Flow-Pattern Change”, J. American Chemical Society, Vol. 125, No. 48, 2003, pp. 14678-14679. (doi: 10.1021/ja037350g)
  50. T. B. Jones, J. D. Fowler, Y. S. Chang, and C.-J. Kim, “Frequency-Based Relationship of Electrowetting and Dielectrophoretic Liquid Microactuation”, Langmuir, Vol. 19, No. 18, 2003, pp. 7646-7651. (doi: 10.1021/la0347511)
  51. B. Shapiro, H. Moon, R. Garrell, and C.-J. Kim. “Equilibrium Behavior of Sessile Drops under Surface Tension, Applied External Fields, and Material Variations”, Journal of Applied Physics, Vol. 93, No. 9, 2003, pp. 5794-5811. (doi: 10.1063/1.1563828)
  52. P. Y. Chiou, H. Moon, H. Toshiyoshi, C.-J. Kim and M. C. Wu, “Light Actuation of Liquid by Optoelectrowetting”, Sensors and Actuators A, Vol. 104, 2003, pp. 222-228. (doi: 10.1016/S0924-4247(03)00024-4)
  53. 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. Microelectromechanical Systems, Vol. 12, No. 1, February 2003, pp. 70-80. (doi: 10.1109/JMEMS.2002.807467)
  54. K.-S. Yun, I.-J. Cho, J.-U. Bu, C.-J. Kim, and E. Yoon “A Surface-Tension Driven Micropump for Low Voltage and Low Power Operations”, J. Microelectromechanical Systems, Vol. 11, No. 5, October 2002, pp. 454-461. (doi: 10.1109/JMEMS.2002.803286)
  55. H. Moon, S. K. Cho, R. L. Garrell, and C.-J. Kim, “Low Voltage Electrowetting-On-Dielectric”, J.  Applied Physics, Vol. 92, No. 7, October 2002, pp. 4080-4087. (doi: 10.1063/1.1504171)
  56. L. Latorre, J. Kim, J. Lee, P.-P. de Guzman, H. J. Lee, P. Nouet, and C.-J. Kim, “Electrostatic Actuation of Microscale Liquid-Metal Droplets”, J. Microelectromechanical Systems, Vol. 11, No. 4, August 2002, pp. 302-308. (doi: 10.1109/JMEMS.2002.800934)
  57. J. Kim, W. Shen, L. Latorre, and C.-J. Kim, “A Micromechanical Switch with Electrostatically Driven Liquid-Metal Droplet”, Sensors and Actuators, Vol. A97-98, April 2002, pp. 672-679. (doi: 10.1016/S0924-4247(02)00022-5)
  58. J. Lee, H. Moon, J. Fowler, T. Schoellhammer, and C.-J. Kim, “Electrowetting and electrowetting-on-dielectric for microscale liquid handling”, Sensors and Actuators, Vol. A95, Issues 2-3, February 2002, pp. 259-268. (doi: 10.1016/S0924-4247(01)00734-8)
  59. J. Lee and C.-J. Kim, “Surface-Tension-Driven Microactuation Based on Continuous Electrowetting”, J. Microelectromechanical Systems, Vol. 9, No. 2, June 2000, pp. 171-180. (doi: 10.1109/84.846697)
  60. J. Simon, S. Saffer, F. Sherman, and C.-J. Kim, “Lateral Polysilicon Microrelays with a Mercury Micro-Drop Contact”, IEEE Trans. Industrial Electronics, Vol. 45, No. 6, Dec. 1998, pp. 854-860. (doi: 10.1109/41.735328)
  61. T. K. Jun and C.-J. Kim, “Valveless Pumping using Traversing Vapor Bubbles in Microchannels”, J. Applied Physics, Vol. 83, No. 11, June 1998, pp. 5658-5664. (doi: 10.1063/1.367419)
  62. J. Simon, S. Saffer, and C.-J. Kim, “A Liquid-Filled Microrelay with a Moving Mercury Micro-Drop”, J. Microelectromechanical Systems, Vol. 6, No. 3, Sept. 1997, pp. 208-216. (doi: 10.1109/84.623109)