Journal Papers
C.-X. Liu, J. Park, and J.-W. Choi, "A Planar Lens Based on Electrowetting of Two Immiscible Liquids," Journal of Micromechanics and Microengineering, Vol. 18, No. 3, 035023 (7pp), 2008.
W. Sung and J.-W. Choi, "A Membraneless Microscale Fuel Cell Using Non-Noble Catalysts in Alkaline Solution," Journal of Power Sources, Vol. 172, No. 1, pp. 198-208, 2007.
C.-C. Hong, J.-W. Choi, and C. H. Ahn, "An On-Chip Air-Bursting Detonator for Driving Fluids on Disposable Lab-on-a-Chip Systems," Journal of Micromechanics and Microengineering, Vol. 17, No. 2, pp. 410-417, 2007.
R. Rong, J.-W. Choi, and C. H. Ahn, "An On-Chip Magnetic Bead Separator for Biocell Sorting," Journal of Micromechanics and Microengineering, Vol. 16, No. 12, pp. 2783-2790, 2006.
X. Zhu, C. Gao, J.-W. Choi, P. L. Bishop, and C. H. Ahn, "On-Chip Generated Mercury Microelectrode for Heavy Metal Ion Detection," Lab on a Chip, Vol. 5, Issue 2, pp. 212-217, 2005.
X. Zhu, J.-W. Choi, and C. H. Ahn, "A New Dynamic Electrochemical Transduction Mechanism for Interdigitated Array Microelectrodes," Lab on a Chip, Vol. 4. Issue 6, pp. 581-587, 2004.
J. Do, J.-W. Choi, and C. H. Ahn, "Low-Cost Magnetic Interdigitated Array on a Plastic Wafer," IEEE Transactions on Magnetics, Vol. 40, No. 4, pp. 3009-3011, July 2004.
C.-C. Hong, J.-W. Choi, and C. H. Ahn, "A Novel In-Plane Passive Microfluidic Mixer with Modified Tesla Structures," Lab on a Chip, Vol. 4, Issue 2, pp. 109-113, 2004.
(Invited Paper) C. H. Ahn, J.-W. Choi, G. Beaucage, J. H. Nevin, J.-B. Lee, A. Puntambekar, and J. Y. Lee, "Disposable Smart Lab on a Chip for Point-of-Care Clinical Diagnostics," Proceedings of IEEE, Vol. 92, No. 1, pp. 154-173, 2004.
C.-C. Hong, S. Murugesan, S. Kim, G. Beaucage, J.-W. Choi, C. H. Ahn, "A Functional On-Chip Pressure Generator Using Solid Chemical Propellant for Disposable Lab-on-a-Chip," Lab on a Chip, Vol. 3, Issue 4, pp. 281-286, 2003.
A. Puntambekar, J.-W. Choi, C. H. Ahn, S. Kim, and V. B. Makhijani, "Fixed-Volume Metering Microdispenser Module," Lab on a Chip, Vol. 2, Issue 4, pp. 213-218, 2002.
J.-W. Choi and C. H. Ahn, "Magnetic Bead-Based Immunoassay on a Microfluidic Lab-on-a-Chip," The Magazine of the IEEK (Institute of Electronics Engineers of Korea), Vol. 29, No. 3, pp. 41-48, 2002.
J.-W. Choi, K. W. Oh, J. H. Thomas, W. R. Heineman, H. B. Halsall, J. H. Nevin, A. J. Helmicki, H. T. Henderson, and C. H. Ahn, "An Integrated Microfluidic Biochemical Detection System for Protein Analysis with Magnetic Bead-Based Sampling Capabilities," Lab on a Chip, Vol. 2, Issue 1, pp. 27-30, 2002.
J.-W. Choi, K. W. Oh, A. Han, N. Okulan, C. A. Wijayawardhana, C. Lannes, S. Bhansali, K. T. Schlueter, W. R. Heineman, H. B. Halsall, J. H. Nevin, A. J. Helmicki, H. T. Henderson, and C. H. Ahn, "Development and Characterization of Microfluidic Devices and Systems for Magnetic Bead-Based Biochemical Detection," Biomedical Microdevices, Vol. 3, No. 3, pp. 191-200, 2001.
J.-W. Choi, T. M. Liakopoulos, and C. H. Ahn, "An On-Chip Magnetic Bead Separator Using Spiral Electromagnets with Semi-Encapsulated Permalloy," Biosensors and Bioelectronics, Vol. 16, No. 6, pp. 409-416, 2001.
J.-W. Choi, C. H. Ahn, S. Bhansali, and H. T. Henderson, "A New Magnetic Bead-Based, Filterless Bio-Separator with Planar Electromagnet Surfaces for Integrated Bio-Detection Systems," Sensors and Actuators B, Vol. 68, pp. 34-39, 2000.
S. H. Lim, Y. S. Choi, H. J. Kim, J.-W. Choi, and C. H. Ahn, "Prototype Microactuators by Magnetostrictive Films," IEEE Transactions on Magnetics, Vol. 34, No. 4, pp. 2042-2044, 1998.
J.-W. Choi and Y.-K. Kim, "Fabrication and Experiment of Novel Type Electrohydrodynamic Micropump," Transaction of IEEJ (Institute of Electrical Engineers of Japan), Vol.117-E, No.3, pp. 170-174, 1997.
J.-W. Choi and Y.-K. Kim, "Electrohydrodynamic Micropump Driven by Traveling Electric Fields," Journal of Electrical Engineering and Information Science, Vol. 2, No. 3, pp. 99-104, 1997.
Conference Proceedings
C.-X. Liu and J.-W. Choi, "Conductive and Flexible Nanocomposite Patterns Embedded in Elastomer Using Microcontact Printing and Cast Molding,” in Proceedings of the 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences (Micro-TAS 2008), San Diego, CA, October 12-16, 2008. (in press)
J. Park, C.-X. Liu, and J.-W. Choi, "A Planar Liquid Lens Design Based on Electrowetting," Proceedings of IEEE Sensors 2007, Atlanta, GA, October 28-31, 2007, pp. 439-442.
J. Park and J.-W. Choi, "An Electroactive Polymer Membrane for Microactuation," The 7th Louisiana Materials and Emerging Technologies Conference, Baton Rouge, LA, October 23-24, 2006, P2.5.
N. S. Korivi and J.-W. Choi, "Microscale Glucose Biofuel Cell with Metallic Catalyst on Cathode," Proceedings of Micro Total Analysis Systems (u-TAS 2005), Boston, MA, October 9-13, 2005, pp. 939-941.
J.-W. Choi and W. Sung, "A Planar and Membraneless Microscale Fuel Cell Using Nickel and Silver as Catalysts," Technical Digest of the 13th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers 2005), Vol. 2, Seoul, Korea, June 5-9, 2005, pp. 1852-1855.
N. S. Korivi and J.-W. Choi, "A Microfabricated Narrow Gap Biofuel Cell with Membraneless Design Flexibility," Technical Digest of the 13th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers 2005), Vol. 1, Seoul, Korea, June 5-9, 2005, pp. 287-290.
N. S. Korivi and J.-W. Choi, "In-Line Monitoring of Magnetic Microparticles Using GMR Sensors in Microfluidic Systems," Proceedings of SPIE Microfluidics, BioMEMS, and Medical Microsystems III, Vol. 5718, San Jose, CA, January 24-26, 2005, pp. 151-158.
N. S. Korivi and J.-W. Choi, "A Giant Magnetoresistive (GMR) Sensor Array for Microfluidic Magnetocytometry," Proceedings of the 8th International Conference on Micro Total Analysis Systems (u-TAS 2004), Malmo, Sweden, September 26-30, 2004, pp. 521-523.
A. Puntambekar, C. Hong, C. Gao, X. Zhu, R. Trichur, J. Han, S. H. Lee, J. Kai, J. Do, R. Rong, S. Chilukuru, M. Dutta, L. Ramasamy, S. Murugesan, R. Cole, J. Nevin, G. Beaucage, J. B. Lee, J. Y. Lee, M. Bissell, J.-W. Choi, and C. H. Ahn, "Smart Disposable Plastic Lab-on-a-Chip for Point-of-Care-Testing (POCT)," Proceedings of the 7th International Conference on Micro Total Analysis Systems (u-TAS 2003), Squaw Valley, CA, October 5-9, 2003, pp.1291-1294.
J. Han, S. H. Lee, A. Puntambekar, S. Murugesan, J.-W. Choi, G. Beaucage, and C. H. Ahn, "UV Adhesive Bonding Techniques at Room Temperature for Plastic Lab-on-a-Chip," Proceedings of the 7th International Conference on Micro Total Analysis Systems (u-TAS 2003), Squaw Valley, CA, October 5-9, 2003, pp.1113-1116.
X. Zhu, C. Gao, J. Kai, J. Do, J.-W. Choi, and C. H. Ahn, "A Novel Dynamic Electrochemical Transduction Mechanism for Low Concentration Analyte Detection," Proceedings of the 7th International Conference on Micro Total Analysis Systems (u-TAS 2003), Squaw Valley, CA, October 5-9, 2003, pp. 801-804.
C. Gao, X. Zhu, M. Dutta, S. Chilukuru, J. H. Nevin, J.-W. Choi, and C. H. Ahn, "Development of Inexpensive Biosensor Array for Point-of-Care Testing," Proceedings of the 7th International Conference on Micro Total Analysis Systems (u-TAS 2003), Squaw Valley, CA, October 5-9, 2003, pp. 797-800.
R. Rong, J.-W. Choi, and C. H. Ahn, "A Novel Magnetic Chaotic Mixer For In-Flow Mixing of Magnetic Beads," Proceedings of the 7th International Conference on Micro Total Analysis Systems (u-TAS 2003), Squaw Valley, CA, October 5-9, 2003, pp. 335-338.
C. Gao, X. Zhu, J.-W. Choi, and C. H. Ahn, "A Disposable Polymer Field Effect Transistor (FET) for pH Measurement," Technical Digest of the 12th International Conference on Solid-State Sensors and Actuators (Transducers 2003), Boston, MA, June 8-12, 2003, pp. 1172-1175.
X. Zhu, C. Gao, J.-W. Choi, P. L. Bishop, and C. H. Ahn, "Mercury Droplet Microelectrode Sensor on Lab-on-a-Chip for Heavy Metal Ion Detection," Technical Digest of the 12th International Conference on Solid-State Sensors and Actuators (Transducers 2003), Boston, MA, June 8-12, 2003, pp. 61-64.
R. Rong, J.-W. Choi, and C. H. Ahn, "A Functional Magnetic Bead or Biocell Sorter Using Fully Integrated Magnetic Micro/Nano Tips," Proceedings of the 16th IEEE MEMS Workshop (MEMS 2003), Kyoto, Japan, January 19-23, 2003, pp. 530-533.
J.-W. Choi, A. Puntambekar, C.-C. Hong, C. Gao, X. Zhu, R. Trichur, J. Han, S. Chilukuru, M. Dutta, S. Murugesan, S. Kim, Y.-S. Sohn, J. H. Nevin, G. Beaucage, J.-B. Lee, J. Y. Lee, M. G. Bissell, and C. H. Ahn, "A Disposable Plastic Biochip Cartridge with On-Chip Power Sources for Blood Analysis," Proceedings of the 16th IEEE MEMS Workshop (MEMS 2003), Kyoto, Japan, January 19-23, 2003, pp. 447-450.
C.-C. Hong, S. Murugesan, S. Kim, G. Beaucage, J.-W. Choi, and C. H. Ahn, "A Functional On-Chip Pressure Generator Using Solid Chemical Propellant for Disposable Lab-on-a-Chip," Proceedings of the 16th IEEE MEMS Workshop (MEMS 2003), Kyoto, Japan, January 19-23, 2003, pp. 16-19.
C. Gao, H. L. R. Rilo, J.-W. Choi, and C. H. Ahn, "A Microfluidic Biosystem for Metabolic Monitoring of Human Islet Cells with Integrated Biosensors," Proceedings of the 6th International Conference on Micro Total Analysis Systems (u-TAS 2002), Nara, Japan, November 3-7, 2002, pp. 787-789.
R. Trichur, S. Kim, X. Zhu, J. W. Suk, C.-C. Hong, J.-W. Choi, and C. H. Ahn, "Development of Plastic Microneedles for Transdermal Interfacing Using Injection Molding Techniques," Proceedings of the 6th International Conference on Micro Total Analysis Systems (u-TAS 2002), Nara, Japan, November 3-7, 2002, pp. 395-397.
J.-W. Choi, J. Do, and C. H. Ahn, "Hybrid Type On-Chip Magnetic Particle Separators for Accurate Positioning Magnetic Beads," Proceedings of the 6th International Conference on Micro Total Analysis Systems (u-TAS 2002), Nara, Japan, November 3-7, 2002, pp. 329-331.
C.-C. Hong, J.-W. Choi, and C. H. Ahn, "A Disposable On-Chip Air Detonator for Driving Fluids on Point-of-Care Systems," Proceedings of the 6th International Conference on Micro Total Analysis Systems (u-TAS 2002), Nara, Japan, November 3-7, 2002, pp. 949-951.
C. H. Ahn, J.-W. Choi, A. Puntambekar, C.-C. Hong, X. Zhu, C. Gao, R. Trichur, S. Chilukuru, M. Dutta, S. Murugesan, S. Kim, Y.-S. Sohn, J. H. Nevin, G. Beaucage, J.-B. Lee, J. Y. Lee, and M. G. Bissell, "Disposable Biochip Cartridge for Clinical Diagnostics toward Point-of-Care Systems," Proceedings of the 6th International Conference on Micro Total Analysis Systems (u-TAS 2002), Nara, Japan, November 3-7, 2002, pp.187-189.
A. Puntambekar, S. Murugesan, R. Trichur, H. J. Cho, S. Kim, J.-W. Choi, G. Beaucage, and C. H. Ahn, "Effect of Surface Modification on Thermo-Plastic Fusion Bonding for 3-D Microfluidics," Proceedings of the 6th International Conference on Micro Total Analysis Systems (u-TAS 2002), Nara, Japan, November 3-7, 2002, pp. 425-427.
A. Puntambekar, R. Trichur, J.-W. Choi, and C. H. Ahn, "3-D Microfluidic Networks for Combinatorial Chemistry," Proceedings of the 6th International Conference on Micro Total Analysis Systems (u-TAS 2002), Nara, Japan, November 3-7, 2002, pp. 422-424.
C. Gao, J.-W. Choi, M. Dutta, S. Chilukuru, J. H. Nevin, J. Y. Lee, M. G. Bissell, and C. H. Ahn, "A Fully Integrated Biosensor Array for Measurement of Metabolic Parameters in Human Blood," Proceedings of the 2nd Second Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine & Biology, Madison, WI, May 2-4, 2002, pp. 223-226.
C.-C. Hong, J.-W. Choi, and C. H. Ahn, "Disposable Air-Bursting Detonator As an Alternative On-Chip Power Source," Proceedings of the 15th IEEE MEMS Workshop (MEMS 2002), Las Vegas, NV, January 20-24, 2002, pp. 240-243.
X. Zhu, J.-W. Choi, R. L. Cole, and C. H. Ahn, "A New Laser Micromachining Technique Using a Mixed-Mode Ablation Approach," Proceedings of the 15th IEEE MEMS Workshop (MEMS 2002), Las Vegas, NV, January 20-24, 2002, pp. 152-155.
(Invited) C. H. Ahn, J.-W. Choi, S. Kim, and Y.-S. Sohn, "Disposable Smart Microfluidic-Based Biochips for Clinical Diagnostics," Symposium Proceedings of 2001 International Semiconductor Device Research Symposium (ISDRC 2001), Washington, DC, December 5-7, 2001, pp. 427-429.
J.-W. Choi, C.-C. Hong, and C. H. Ahn, "An Active Electrokinetic Micromixer," Proceedings of the 5th International Conference on Micro Total Analysis Systems (u-TAS 2001), Monterey, CA, October 21-25, 2001, pp. 621-622.
T. R. Butt, H. Tran, J.-W. Choi, H. J. Cho, and C. H. Ahn, "A Disposable Cell-Based Biochip for Detection of Hormones and Drugs," Proceedings of the 5th International Conference on Micro Total Analysis Systems (u-TAS 2001), Monterey, CA, October 21-25, 2001, pp. 83-84.
A. Puntambekar, J.-W. Choi, C. H. Ahn, S. Kim, S. Bayyuk, and V. B. Makhijani, "An Air-Driven Fluidic Multiplexer Integrated with Microdispensers," Proceedings of the 5th International Conference on Micro Total Analysis Systems (u-TAS 2001), Monterey, CA, October 21-25, 2001, pp.78-80.
C.-C. Hong, J.-W. Choi, and C. H. Ahn, "A Novel In-Plane Passive Micromixer Using Coanda Effect," Proceedings of the 5th International Conference on Micro Total Analysis Systems (u-TAS 2001), Monterey, CA, October 21-25, 2001, pp. 31-33.
J.-W. Choi, S. Kim, R. Trichur, H. J. Cho, A. Puntambekar, R. L. Cole, J. R. Simkins, S. Murugesan, K. S. Kim, J. B. Lee, G. Beaucage, J. H. Nevin, and C. H. Ahn, "A Plastic Micro Injection Molding Technique Using Replaceable Mold-Disks for Disposable Microfluidic Systems and Biochips," Proceedings of the 5th International Conference on Micro Total Analysis Systems (u-TAS 2001), Monterey, CA, October 21-25, 2001, pp. 411-412.
A. Puntambekar, H. J. Cho, C.-C. Hong, J.-W. Choi, C. H. Ahn, S. Kim, and V. B. Makhijani, "A New Fixed-Volume Metering Microdispenser Module Based on sPROMs Technology," Technical Digest of the 11th International Conference on Solid-State Sensors and Actuators (Transducers 2001), Munich, Germany, June 10-14, 2001, pp. 1240-1243.
J.-W. Choi, K. W. Oh, J. H. Thomas, W. R. Heineman, H. B. Halsall, J. H. Nevin, A. J. Helmicki, H. T. Henderson, and C. H. Ahn, "An Integrate Microfluidic Biochemical Detection System with Magnetic Bead-Based Sampling and Analysis Capabilities," Proceedings of the 14th IEEE MEMS Workshop (MEMS 2001), Interlaken, Switzerland, January 21-25, 2001, pp. 447-450.
J.-W. Choi and C. H. Ahn, "An Active Microfluidic Mixer for Mixing of Microparticles and Liquids," Proceedings of SPIE Conference on Microfluidic Devices and Systems III, Vol. 4177, Santa Clara, CA, September 18-19, 2000, pp. 154-161.
J.-W. Choi and C. H. Ahn, "An Active Micro Mixer Using Electrohydrodynamic (EHD) Convection," Technical Digest of Solid-State Sensor and Actuator Workshop 2000, Hilton Head Island, SC, June 4-8, 2000, pp. 52-55.
J.-W. Choi, C. A. Wijayawardhana, N. Okulan, K. W. Oh, A. Han, S. Bhansali, V. Govind, K. T. Schlueter, J. H. Nevin, A. J. Helmicki, W. R. Heineman, H. B. Halsall, H. T. Henderson, and C. H. Ahn, "Development of a Generic Microfluidic Subsystem toward Portable Biochemical Detection Systems," Proceedings of the 4th International Conference on Micro-Total Analysis Systems (u-TAS 2000), Enschede, The Netherlands, May 14-18, 2000, pp. 327-330.
N. Okulan, S. Bhansali, A. Han, S. Dharmatilleke, J.-W. Choi, M. Patel, K. W. Oh, H. T. Henderson, and C. H. Ahn, "Development of Planar Microfluidic Systems Using Conventional and Low Temperature Assembling Schemes for Components," Proceedings of the 1999 AMSE International Mechanical Engineering Conference and Exposition (IMECE 1999), MEMS-Vol. 1, Nashville, TN, November 14-19, 1999, pp. 259-264.
J.-W. Choi, S. Bhansali, C. H. Ahn, and H. T. Henderson, "A Novel Magnetic Bead-Based Filterless Bio-Separator with Planar Electromagnet Surfaces," Proceedings of the 13th European Conference on Solid-State Transducers, The Hague, The Netherlands, September 12-15, 1999, pp. 713-716.
J.-W. Choi, C. H. Ahn, and H. T. Henderson, "Planar Bio/Magnetic Bead Separator with Microfluidic Channel," Proceedings of SPIE Conference on Microfluidic Devices and Systems, Vol. 3515, Santa Clara, CA, September 20-22, 1998, pp. 260-267.
J.-W. Choi, Y. Ding, C. H. Ahn, H. B. Halsall, and W. R. Heineman, "A Microchip Electrochemical Immunosensor Fabricated Using Micromachining Techniques," Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 1997), Chicago, IL, October 30 - November 2, 1997, pp. 2264-2266.
T. M. Liakopoulos, J.-W. Choi, and C. H. Ahn, "A Bio-Magnetic Bead Separator on Glass Chips Using Semi-Encapsulated Spiral Electromagnets," Technical Digest of the 9th International Conference on Solid-State Sensors and Actuators (Transducers 1997), Chicago, IL, June 16-19, 1997, pp. 485-488.
J.-W. Choi and Y.-K. Kim, "Fabrication and Experiment of Novel Type Electrohydrodynamic Micropump," Technical Digest of the 14th Sensor Symposium, Kawasaki, Japan, June 4-5, 1996, pp. 267-270.
J.-W. Choi and Y.-K. Kim, "Micro Electrohydrodynamic Pump Driven by Traveling Electric Fields," Proceedings of IEEE Industrial Application Society Annual Meeting (IEEE IAS 1995), Vol. 2, Orlando, FL, October 8-12, 1995, pp. 1480-1484.
Conference Abstracts
(Invited) J.-W. Choi and N. S. Korivi, "A Microscale Glucose Biofuel Cell Using Reconstituted Glucose Oxidase on Anode and Activated Palladium on Cathode," The 208th Electrochemical Society (ECS) Meeting, Los Angeles, CA, October 16-21, 2005.
C. Gao, J.-W. Choi, and C. H. Ahn, "A Novel Glucose Biosensor with Gel-Based Solid Electrolyte and Microheater Structure for Rapid Detection," The 7th World Congress on Biosensors, Kyoto, Japan, May 15-17, 2002.
(Invited) C. H. Ahn, J.-W. Choi, S. Kim, Y.-S. Sohn, A. Puntambeker, S. Murugesan, G. Beaucage, and J. H. Nevin, "Disposable Smart Plastic Biochips for Clinical Diagnostics," BioMEMS Conference, Material Research Society (MRS), San Francisco, CA, April 1-3, 2002.
J.-W. Choi and C. H. Ahn, "A Magnetic Particle Separator Using Permalloy Microstructures and External Electromagnets," The 8th Intermag-MMM Joint Conference, San Antonio, TX, January 7-11, 2001.
C. H. Ahn, H. T. Henderson, W. R. Heineman, H. B. Halsall, J. H. Nevin, A. J. Helmicki, and J.-W. Choi, "An Integrated Microfluidic Biochemical Detection System Using Magnetic Beads," IBC’s Annual International Microtechnology Event: Chips to Hits 2000, Philadelphia, PA, November 6-9, 2000.
C. A. Wijayawardhana, W. R. Heineman, H. B. Halsall, C. H. Ahn, T. Henderson, J. H. Nevin, T. Ridgway, C. Lannes, K. Schlueter, J.-W. Choi, S. Bhansali, "A Fully Automated Electrochemical Immunosensor System Using Microfabricated Parts," Biosensors 2000 (Sixth World Congress in Biosensors)), San Diego, CA, May 24-26, 2000.
W. R. Heineman, C. A. Wijayawardhana, H.B. Halsall, M. Cousino, S. Purushothama, S. Kradtap, K. Schlueter, T.H. Ridgway, J.-W. Choi, S. Bhansali, C. Lannes, J. H. Nevin, "Immunoassay with Magnetic Beads and Electrochemical Detection," Symposium on Electroorganic and Electroanalytical Aspects of Environmental Chemistry, Electrochemical Society Meeting, Honolulu, HI, October 17-22, 1999.
W. R. Heineman, H. B. Halsall, T. H. Ridgway, M. Cousino, A. Wijayawardhana, S. Purushothama, S. Kradtap, J.-W. Choi, C. Lannes, J. Nevin, C. H. Ahn, T. Henderson, "Immunoassay with Novel Electrochemical Detection Methods," The 218th American Chemical Society (ACS) Meeting, New Orleans, LA, August 22-26, 1999.
W. R. Heineman, H. B. Halsall, M. Cousino, C. A. Wijayawardhana, S. Purushothama, S. Kradtap, K. Schlueter, J.-W. Choi, C. H. Ahn, and H. T. Henderson, "Electrochemical Immunoassay with Microfluidic Systems," PITTCON ’99, Orlando, FL, March 7-12, 1999.
W. R. Heineman, H. B. Halsall, M. Cousino, C. A. Wijayawardhana, S. Purushothama, Y. Ding. L. Zhou, J.-W. Choi, C. H. Ahn, H. T. Henderson, G. Wittstock, "Electrochemical Immunosensors Based on MEMS Technology," Immunochemistry Summit VII & Third Workshop on Biosensors & Biological Techniques in Environmental Analysis, Las Vegas, NV, December 1-3, 1998.