Chang-Hwan Choi (cchoi)

Chang-Hwan Choi

Professor

Charles V. Schaefer, Jr. School of Engineering and Science

Department of Mechanical Engineering

Carnegie Laboratory 205
(201) 216-8315

Education

  • PhD (2006) University of California at Los Angeles (UCLA) (Mechanical Engineering)
  • MS (2002) Brown University (Engineering (Fluid, Thermal and Chemical Processes))
  • MS (1997) Seoul National University (Aerospace Engineering)
  • BS (1995) Seoul National University (Aerospace Engineering)

Research

- Micro/Nano Manufacturing
- Additive Manufacturing
- Surface Engineering
- Interfacial Phenomena
- Fluid Mechanics & Thermal Engineering
- Biomaterials

Experience

- Professor, Department of Mechanical Engineering, Stevens Institute of Technology, September 2018 - present
- Associate Professor, Department of Mechanical Engineering, Stevens Institute of Technology, September 2013 - August 2018
- Assistant Professor, Department of Mechanical Engineering, Stevens Institute of Technology, January 2007 - August 2013

- Researcher, Satellite Division, Korea Aerospace Research Institute (KARI), South Korea, December 1999 - June 2000
- Lecturer, Foreign Language Department, Chandrakasem Rajabhat University, Thailand, March 1997 - November 1999
- Assistant Researcher, Satellite Division, Korea Aerospace Research Institute (KARI), South Korea, February - December 1996

- Visiting Research Professor, Research Institute of Industrial Science and Technology, Pukyong National University, South Korea, July - August 2021
- Visiting Researcher (Humboldt Research Fellow), Department of Physics at Interfaces, Max Planck Institute for Polymer Research, Germany, June - August 2017
- Visiting Professor, Institute of Microengineering, Ecole Polymechnique Federale de Lausanne (EPFL), Switzerland, May - June 2016
- Visiting Professor (Humboldt Research Fellow), Center of Smart Interfaces, Technical University of Darmstadt, Germany, February - April 2016
- Visiting Researcher, Materials and Life Science Division, Korea Institute of Science and Technology (KIST), South Korea, August 2015 - January 2016
- Visiting Research Professor, Institute of Advanced Machinery Design Technology, Korea University, South Korea, August 2015 - January 2016
- Visiting Professor, Department of Mechanical Engineering, Kyung Hee University, South Korea, June - August 2013

Institutional Service

  • University Laboratory Safety Committee (ULSC) Member
  • Stevens Center for Sustainability Member
  • Faculty Award Nomination Committee Member
  • ME Research Committee Member
  • Semcer Center for Healthcare Innovation (CHI) Member
  • Micro Device Laboratory (MDL) Chair
  • ME Graduate Committee Member
  • Ph.D. Qualifying Examination Committee (Fluid & Micro/Nano) Chair
  • Graduate Student Club Faculty Advisor Chair
  • Teaching Faculty Search Committee Member
  • ME Nominating Committee Member
  • Departmental Strategic Planning Committee Member
  • Review Committee for the Department Director Member
  • Board of Trustee Nomination and Corporate Governance Committee Member
  • Institute Curriculum Committee Member
  • SES Honors & Awards Committee Member
  • Search Committee for the Department Director Member
  • Search Committee for the New Faculty Member
  • Academic Operations and Affairs Committee Member
  • Academic Appeals Committee Member
  • Undergraduate Academic Standards Committee Member

Professional Service

  • Micromachines Guest Editor
  • Scientific Reports Guest Editor
  • The Third International Conference on Nature Inspired Surface Engineering Organizer and Conference Chair
  • Korea Institute of Science and Technology Center (KOFST) Organizer
  • REPRISE (the Register of Scientific Experts set up at the MIUR) Grant Reviewer
  • Frontiers in Lab on a Chip Technologies Journal Associate Editor
  • The IEEE International Conference on Nano/Micro Engineered and Molecular Systems (IEEE-NEMS) Technical Program Committee
  • The International Conference on Electron, Ion, and Photon Beam Technology and Nanofabrication (EIPBN) Technical Program Committee
  • Droplet Journal Editorial Board
  • Nanomaterials Journal Editorial Board
  • Czech Science Foundation (GACR) Reviewer, Grant
  • Journal of Colloid and Interface Science Journal Advisory Board
  • Science Fund of the Republic of Serbia (SF) Reviewer, Grant
  • Coatings Journal Editorial Board
  • NASA Postdoctoral Program (NPP) Reviewer, Grant Application
  • Materials Journal Editorial Board
  • The Research Council of Norway Reviewer
  • The Research Grants Council (RGC) of Hong Kong Reviewer
  • Scientific Reports Journal Editorial Board
  • International Journal of Wettability Science and Technology Journal Editorial Board
  • Micromachines Journal Editorial Board
  • Nanomaterials Journal Guest Editor
  • Korea Institute of Science and Technology Center (KOFST) Organizer
  • Micromachines Journal Guest Editor
  • The Second International Conference on Nature Inspired Surface Engineering Organizer and Conference Chair
  • U.S. Department of Energy: National Renewable Energy Lab (NREL), American-Made Solar Desalination Prize Reviewer, Grant Application
  • European Research Council Reviewer, Grant Application
  • U.S. Army Corps of Engineers: Engineer Research and Development Centers (ERDC) Reviewer
  • U.S. Department of Energy: Office of Energy Efficiency and Renewable Energy (EERE) Reviewer, Grant Application
  • National Science Foundation (NSF) Reviewer, Grant
  • King Abdullah University of Science and Technology (KAUST) Competitive Research Grants (CRG) program Reviewer, Grant Application
  • National Nuclear Security Administration (NNSA) Minority Serving Institution Partnership Program (MSIPP) Reviewer, Grant Application
  • ACS Petroleum Research Fund Reviewer
  • Swiss NSF Reviewer
  • TechConnect World Innovation Conference & Expo Technical Abstract Review Committee
  • The Academy of Finland Reviewer
  • Coatings Guest Editor
  • Micromachines Guest Editor
  • The 2nd Coatings and Interfaces Web Conference (CIWC 2020) Scientific Advisory Committee
  • The 1st International Conference on Nature Inspired Surface Engineering Conference Organizer

Honors and Awards

- Humboldt Research Fellowship, Alexander von Humboldt Foundation, 2016
- NSF Fellowship, NSF Summer Institute on Nanomechanics, Nanomaterials, and Micro/Nanomanufacturing, 2011
- Research Recognition Award, Stevens Institute of Technology, 2010
- NSF Fellowship, NSF Summer Institute on Nanomechanics, Nanomaterials, and Micro/Nanomanufacturing, 2010
- Young Investigator Award, Office of Naval Research (ONR), 2010
- NSF Fellowship, NSF Summer Institute on Nanomechanics, Nanomaterials, and Micro/Nanomanufacturing, 2007
- KUSCO/KSEA Scholarship, Korea-U.S. Science Cooperation Center / Korean-American Scientists and Engineers Association, 2006
- Graduate Fellowship, California NanoSystems Institute, 2002
- Engineering Research Fellowship, Brown University, 2000
- National Fellowship, Korean Government, 2000
- ‘Magna cum laude’ Honors in graduation, Seoul National University, 1995

Professional Societies

  • NYAS – New York Academy of Science (NYAS) Member
  • NJTC – New Jersey Technology Council (NJTC) Member
  • ASME – American Society of Mechanical Engineers (ASME) Member
  • KSEA – Korean-American Scientists and Engineers Association (KSEA) Member
  • ACS – American Chemical Society (ACS) Member
  • ECS – Electrochemical Society (ECS) Member
  • AVS – American Vacuum Society (AVS) Member
  • SPIE – Society of Photo-Optical Instrumentation Engineers (SPIE) Member
  • IEEE – Institute of Electrical and Electronics Engineers (IEEE) Member

Grants, Contracts and Funds

- National Science Foundation (NSF), "Collaborative Research: Capillary-Controlled Thermal Diode using Heterogeneous Nanostructures", PI, $260,719, 6/1/24-5/31/27
- National Science Foundation (NSF), "I-Corps: Omniphobic Anodic Coatings", PI, $50,000, 5/15/23-10/31/23
- Korea Evaluation Institute of Industrial Technology (KEIT) / SEO YEONG Co., Ltd., "Development of Multi-stage Press Casting Process and Dissimilar Material Deposition Mold Technology for Eco-Friendly Car Parts, PI, $300,000, 5/1/20-12/31/23
- National Science Foundation (NSF), "I-Corps: Artificial Cornea of Microtextured pHEMA Hydrogel", PI, $50,000, 9/1/19-8/31/22
- Office of Naval Research (ONR), "Laser Metal Deposition System for Additive Manufacturing and Corrosion Study of Metals", PI, $372,600, 6/15/18-6/14/21
- National Science Foundation (NSF), "Structured Surfaces for Prevention of Ice Adhesion and Growth", PI, $316,399, 9/1/15-8/31/19
- National Science Foundation (NSF), "Hydropower Plant on a Chip: Frictionless Nanochannel Systems for Hydroelectric Power Generation", PI, $199,990, 6/1/15-5/31/19
- American Chemical Society (ACS) Petroleum Research Fund (PRF), "Rejuvenating Conjugated Polymer Membranes for Oily Water Treatment", Co-PI (PI: Prof. Eui-Hyeok Yang, Department of Mechanical Engineering, Stevens), $110,000, 9/1/16-8/31/18
- U. S. Department of Agriculture (UDSA), "Prevention of Microbial Adhesion in Food Processing Environment using Multifunctional Nanopillared Surfaces", Co-PI (PI: Prof. Soojin Jun, Department of Human Nutrition, Food and Animal Sciences, University of Hawaii at Manoa), $499,516, 1/1/15-12/31/17
- Office of Naval Research (ONR), "Oil-Impregnated Oxide Nanostructures for Aluminum Corrosion Prevention", PI, $361,260, 6/1/14-9/30/17
- Office of Naval Research (ONR), "Molecular Vapor Deposition Systems for Vapor-Phase Self-Assembled Monolayer Superhydrophobic Coatings", PI, $399,500, 6/15/13-6/14/14
- National Science Foundation (NSF), "Tunable Wetting on Smart Polymers for Ultra-Low Voltage Digital Microfluidics", Co-PI (PI: Prof. Eui-Hyeok Yang, Department of Mechanical Engineering, Stevens), $359,995, 9/1/12-5/31/15
- Office of Naval Research (ONR), "Small Angle X-Ray Scattering (SAXS) Instrument for Nondestructive Characterization of Nanobubble Kinetics and Dynamics on Nanostructured Surfaces", PI, $498,550, 6/15/12-12/14/13
- National Science Foundation (NSF), "NUE: Nanotechnology Exposure for Undergraduate Students (NANO-NEXUS)", Co-PI (PI: Prof. Yang, Department of Mechanical Engineering, Stevens), $200,000, 9/1/11-8/30/13
- Office of Naval Research (ONR), "Environmental Scanning Electron Microscope for In-Situ Wetting Dynamics Study of Nanostructured Surfaces", PI, $325,109, 6/15/11-6/14/12
- National Science Foundation (NSF), "MRI: Acquisition of a Nanoimprint Lithography System for Nanoscience Research and Education based on Low-Dimensional Materials", Co-PI (PI: Prof. Eui-Hyeok Yang, Department of Mechanical Engineering, Stevens), $170,000, 1/1/11-12/31/13
- Office of Naval Research (ONR), Young Investigator Award, "Nano-Engineering of Superhydrophobic Surfaces for Light Metal Anti-Corrosion", PI, $511,704, 5/1/10-11/30/13
- Office of Naval Research (ONR), "Configurable and Multi-Modal Thin Film Deposition System for Multi-Functional Nanostructured Surfaces", PI, $242,300, 4/15/10-4/14/11
- US Army Picatinny (ARDEC), "Energy Harvesting from Energetic Materials", Co-PI (PI: Prof. Souran Manoochehri, Department of Mechanical Engineering, Stevens), $401,166, 9/24/09-9/23/11
- American Chemical Society (ACS) Petroleum Research Fund (PRF), "Bubble Detachment on Micro/Nano Structured Solid Surfaces in Energy Applications", Co-PI (PI: Prof. Sungkwon Cho, Department of Mechanical Engineering & Materials Science, University of Pittsburgh), $100,000, 9/01/09-8/31/11
- Defense Advanced Research Projects Agency (DARPA), "Infused Teflon Films for Multi-Functional Appliqué", Subcontractor for Johns Hopkins University, $178,487, 7/1/09-6/30/10
- Office of Naval Research (ONR), "Nano-Engineered Superhydrophobic Aluminum Surfaces for Marine Anti-Corrosion", PI, $75,104, 6/01/09-5/31/10
- Ross Technology Corporation, "Characterization of Superhydrophobic Coatings for Hydrodynamic Drag Reduction", PI, $9,956, 3/1/09-12/31/09
- Department of Energy (DOE), "Nanostructured Superhydrophobic Coatings for Breakthrough Energy Savings", Subcontractor for Oak Ridge National Laboratory (ORNL), $200,000, 2/20/09-9/30/11
- National Science Foundation (NSF), "MRI: Acquisition of an Inductively Coupled Plasma Etching System for Nano/Micro Device Fabrication", Co-PI (PI: Prof. Yong Shi, Department of Mechanical Engineering, Stevens), $190,000, 9/1/08-8/30/11
- Air Tech, Inc., "Design, Simulation, and Testing of Regenerative Blowers for Optimized Efficiency", PI, $63,650, 9/1/08-8/31/09

Patents and Inventions

E.-H. Yang, J. Xu, W. Xu, B. Englot, C.-H. Choi, “In Situ Oil Cleanup and Recovery Using Smart Polymer Integrated Surface Vessels”, Patent No.: US 12,054,406 B2, Date of Patent: August 6, 2024.

C.-H. Choi, J. Lee, “Oil-impregnated Nanoporous Oxide Coating for Inhibiting Aluminum Corrosion”, Patent No.: US 12006583 B2, Date of Patent: June 11, 2024.

Y. Xi, C.-H. Choi, X. Yu, J. Liang, “Artificial Cornea with Double-side Microtextured PHEMA Hydrogel”, Patent No.: US 11,950,997 B2, Date of Patent: April 9, 2024.

E.-H. Yang, J. Xu, W. Xu, B. Englot, C.-H. Choi, “In Situ Oil Cleanup and Recovery Using Smart Polymer Integrated Surface Vessels”, Patent No.: US 11,407,657 B2, Date of Patent: August 9, 2022.

W. Mao, I. Wathuthanthri, C.-H. Choi, “Tunable Two-Mirror Interference Lithography System”, Patent No.: US 8,681,315, Date of Patent: March 25, 2014.

Selected Publications

Book Chapter

  1. Lee, J.; Choi, C. (2018). Superhydrophobic Surfaces for Anti-Corrosion of Aluminum. Advances in Contact Angle, Wettability and Adhesion (vol. 3, pp. 267--298). Hoboken, NJ, USA: John Wiley \& Sons, Inc. .
  2. Choi, C.; Kim, C. (2012). Advanced nanostructured surfaces for the control of biofouling: cell adhesions to three-dimensional nanostructures. Green Tribology (pp. 79--103). Springer, Berlin, Heidelberg.

Conference Proceeding

  1. Choi, C. (2024). Design of Robust Lubricant-Infused Surfaces. IUTAM Symposium on Capillarity and Elastocapillarity in Biology.
  2. Choi, C.; Lee, S.; Jang, J. (2023). Effects of Holding Temperature during Induction Heating Assisted Laser-Directed Energy Deposition of Inconel 718. The 42th International Congress on Applications of Lasers and Electro-Optics (ICALEO).
  3. Jung, J.; Hosseini, S. M.; Choi, C. (2023). Optimization of Direct Energy Deposition Additive Manufacturing Process for Al-Mg-Si Alloy and H13 Steel.
  4. Choi, C. (2023). Novel Nanofabrication Processes and Applications via Laser Interference Lithography.
  5. Jung, J.; Hosseini, S. M.; Choi, C. (2023). Optimization of Direct Energy Deposition Process for Al-Mg-Si Aluminum Alloy and H13 Steel Bi-metal Structure.
  6. Choi, C.; Xi, Y.; Kaper, H. J.; Sharma, P. K. (2022). Biotribology of Microtextured Surfaces: Effects of Material Hydrophilicity and Stiffness.
  7. Choi, C.; Xi, Y.; Kaper, H. J.; Sharma, P. K. (2022). Tribological Effects of Textured Hard Implant Surfaces Sliding against Soft Tissue under Physiological Conditions.
  8. Choi, C. (2022). Superhydrophobic Drag Reduction: From Droplet Movement to Boundary Layer Flows.
  9. Choi, C.; Brito, J. E.; Asawa, K.; Andrianov, A. K.; Sukhishvili, S. A. (2021). All-aqueous Layer-by-layer Coatings of Fluorinated Polyelectrolytes for Controllable Hydrophobicity and Droplet Adhesion.
  10. Choi, C.; Son, J.; Lee, K. Y.; Shim, D. S. (2021). Experimental Investigation into a Fatigue Failure of Deposited HTCS-150 on H13 by Thermal Cyclic Loadings.
  11. Choi, C.; Son, J.; Shin, G.; Lee, K.; Shim, D. (2021). High-Temperature Properties of Hot-Work Tool Steel (AISI H13) Deposited via Direct Energy Deposition.
  12. Choi, C.; Son, J. (2021). Thermal Conductivity of HTCS-150 Deposited via Powder-fed DED Technology.
  13. Gulfam, R.; Orejon, D.; Choi, C.; Zhang, P. (2021). THERMO-RESPONSIVE ENHANCED SHEDDING ON LUBRICANT INFUSED SURFACES.
  14. Lee, S.; Zong, K.; Asawa, K.; Choi, C.; Sparta, N.; Circelli, A. (2019). Engineering Vertical Crystal Arrays for Efficient Solar Energy Harvesting. Energy Harvesting From Infrastructure and Ocean Systems (EHIOS).
  15. Jiang, Y.; Cao, L.; Guo, Z.; Choi, C. (2017). Droplet sliding on inclined superhydrophobic surfaces: the effect of anisotropic contact line. APS Meeting Abstracts.
  16. Ozbay, R.; Jiang, Y.; Kibar, A.; Choi, C. (2017). Dynamics of contact line pinning/depinning of sliding bubble on super-aerophobic surfaces. APS Division of Fluid Dynamics Meeting Abstracts.
  17. Song, D.; Choi, C. (2017). Spontaneous De-Icing Phenomena on Extremely Cold Surfaces. APS Meeting Abstracts.
  18. Lee, J.; Jiang, Y.; Choi, C. (2016). Oil-Impregnated Nanoporous Oxide Layer of Anodized Stainless Steel for Omniphobic and Anti-Corrosive Surfaces. Meeting Abstracts (12 ed., pp. 1284--1284).
  19. Chauvin, A.; Delac\^ote, Cyril; Molina-Luna, L.; Boujtita, M.; Thiry, D.; Du, K.; Ding, J.; Choi, C.; Humbert, B.; Mevellec, J. Y.; others (2016). Two-step approach for the nanofabrication of highly ordered ultra-long porous gold nanowires with an adjustable porosity for SERS-based sensors. 10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 19th Annual Nanotech Conference and Expo, and the 2016 National SBIR/STTR Conference (pp. 19--22).
  20. Fisher, F.; Besser, R.; Sheppard, K.; Choi, C.; Yang, E. (2014). An Approach for Introducing Concepts of Nanotechnology within the Undergraduate Curriculum. ASEE Mid-Atlantic Section Fall 2014 Conference.
  21. Xu, W.; Li, X.; Palumbo, A.; Choi, C.; Yang, E. (2014). Bi-Directional Switching of Microdroplet Adhesion on Doped Polypyrrole Microstructures. Hilton Head Workshop 2014: A Solid-State Sensors, Actuators \& Microsystems Workshop.
  22. Xu, W.; Choi, C.; Yang, E. (2014). Microdroplet Manipulation at Ultra-Low Voltages on Conjugated Polymer Using Electrochemical Tunable Wetting. Meeting Abstracts (37 ed., pp. 1883--1883).
  23. Hizal, F.; Rungraeng, N.; Jun, S.; Choi, C. (2014). Nano-engineered alumina surfaces for prevention of bacteria adhesions. The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) (pp. 17--22).
  24. Xu, W.; Tian, Y.; Bisaria, H.; Ahn, P.; Li, X.; Tsai, Y.; Choi, C.; Yang, E. (2013). A Low-Voltage Droplet Manipulation via Tunable Wetting on a Polypyrrole (DBS) Surface. Nanotechnology 2013: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational-2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013 (pp. 322--325).
  25. Kibar, A.; Ozbay, R.; Sarshar, M. A.; Kang, Y. T.; Choi, C. (2013). Air bubble movement over and under hydrophobic surfaces in water. 8th International Conference on Multiphase Flow ICMF.
  26. El Mel, A.; Buffi\`ere, Marie; Tessier, P.; Xu, W.; Du, K.; Choi, C.; Konstantinidis, S.; Bittencourt, C.; Snyders, R. (2013). Fabrication of highly ordered hollow oxide nanostructures based on nanoscale Kirkendall effect and ostwald ripening. 2013 IEEE 5th International Nanoelectronics Conference (INEC) (pp. 46--48).
  27. Xu, W.; Tian, Y.; Bisaria, H.; Ahn, P.; Choi, C.; Yang, E. (2013). Transportation of a liquid droplet at ultra-low voltages by tunable wetting on conjugated polymer electrodes. 2013 Transducers \& Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS \& EUROSENSORS XXVII) (pp. 2185--2188).
  28. Lu, Y.; Du, K.; Xu, W.; Choi, C.; Sukhishvili, S. (2013). Tuning surface wettability with layer-by-layer hydrogel coatings of polycarboxylic acids. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY (vol. 245).
  29. Liu, Y.; Du, K.; Wathuthanthri, I.; Xu, W.; Choi, C. (2012). 3-D nanofabrication using nanostructured photoresist film as free-standing appliqu\'e. 2012 IEEE 25th International Conference on Micro Electro Mechanical Systems (MEMS) (pp. 192--195).
  30. Swarctz, C.; Aljallis, E.; Hunter, S.; Simpson, J.; Choi, C. (2012). Characterization of superhydrophobic surfaces for anti-icing in a low-temperature wind tunnel. ASME 2010 International Mechanical Engineering Congress and Exposition (pp. 303--306).
  31. Jeong, C.; Xu, W.; Du, K.; Choi, C. (2012). Corrosion Resistance of Nanoporous Superhydrophobic Surfaces of Anodic Aluminum Oxide. Meeting Abstracts (22 ed., pp. 2240--2240).
  32. Jeong, C.; Choi, C. (2012). Stepwise Anodizing Processes for Hierarchical Nanoporous Structures. Meeting Abstracts (45 ed., pp. 3281--3281).
  33. Tsai, Y.; Choi, C.; Yang, E. (2012). Water droplet manipulation by tunable wetting on smart polymer at ultra-low voltages. 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012 (pp. 863--865).
  34. Aljallis, E.; Sarshar, M. A.; Datla, R.; Hunter, S.; Simpson, J.; Sikka, V.; Jones, A.; Choi, C. (2011). Measurement of hydrodynamic frictional drag on superhydrophobic flat plates in high reynolds number flows. ASME 2011 International Mechanical Engineering Congress and Exposition (pp. 77--82).
  35. Sarshar, M. A.; Swarctz, C.; Hunter, S.; Simpson, J.; Choi, C. (2011). Superhydrophobic Surfaces Properties for Anti-Icing. ASME 2011 International Mechanical Engineering Congress and Exposition (pp. 499--502).
  36. Besser, R.; Fisher, F.; Choi, C.; Shi, Y.; Cappelleri, D.; Pochiraju, K.; Sun, H.; Voiculescu, I.; Lin, Q.; Attinger, D. (2010). 2010 Metro Area MEMS/NEMS Workshop: NanoManufacturing.
  37. Swarctz, C.; Aljallis, E.; Hunter, S.; Simpson, J.; Choi, C. (2010). Characterization of superhydrophobic surfaces for anti-icing in a low-temperature wind tunnel. ASME International Mechanical Engineering Congress and Exposition (vol. 44441, pp. 303--306).
  38. Tsai, Y. T.; Choi, C.; Yang, E. (2010). Droplet actuation in PPy redox process. Nanotechnology 2010: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational-2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010 (pp. 476--479).
  39. Leeladhar, R.; Xu, W.; Choi, C. (2010). Effects of Nanofluids on Droplet Evaporation and Wetting on Nanoporous Superhydrophobic Surfaces. ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer (pp. 725--733).
  40. Xu, W.; Choi, C. (2010). Effects of structural topography on nanofluids droplet evaporation on multifarious superhydrophobic surfaces. ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer (pp. 497--505).
  41. Wang, C.; Choi, C. (2010). Optimized design of regenerative blowers for enhanced efficiency. ASME 2010 International Mechanical Engineering Congress and Exposition (pp. 1241--1248).
  42. Xu, W.; Choi, C. (2009). Evaporation kinetics of nanofluid droplets on superhydrophobic surfaces. Proceedings of the 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2009) (pp. 1--5).
  43. Leeladhar, R.; Xu, W.; Choi, C. (2009). Evaporation of Nanoparticles Droplets on Nanoporous Superhydrophobic Surfaces. ASME 2009 International Mechanical Engineering Congress and Exposition (pp. 619--625).
  44. Tsai, Y.; Xu, W.; Yang, E.; Choi, C. (2009). Interfacial-Tension-Directed Self-Assembly of Nanowires on Superhydrophobic Surfaces. ASME 2008 International Mechanical Engineering Congress and Exposition (pp. 749--753).
  45. Xu, W.; Choi, C. (2009). Nanofluids evaporation kinetics on microstructured superhydrophobic surfaces. ASME 2009 International Mechanical Engineering Congress and Exposition (pp. 1015--1024).
  46. Choi, C.; Kim, C. (2009). Nanostructured surfaces for anti-biofouling/anti-microbial applications. Micro-and Nanotechnology Sensors, Systems, and Applications (vol. 7318, pp. 731811).
  47. Leeladhar, R.; Xu, W.; Tsai, Y.; Yang, E.; Choi, C. (2009). Nanowire self-assembly in droplet evaporation on superhydrophobic surfaces. Proceedings of the 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2009).
  48. Wathuthanthri, I.; Choi, C. (2009). Tunable Lloyd-Mirror Interferometer for Large-Area Nanopatterning. ASME 2009 International Mechanical Engineering Congress and Exposition (pp. 433--438).
  49. Tsai, Y.; Choi, C.; Yang, E. (2009). WATER DROPLET MANIPULATION BY TUNABLE WETTING ON SMART POLYMER AT ULTRA-LOW VOLTAGES. Thirteenth International Conference on Miniaturized Systems for Chemistry and Life Sciences.
  50. Lee, C.; Choi, C.; Kim, C. (2008). Effect of Geometric Parameters of Superhydrophobic Surface on Liquid Slip. ASME International Mechanical Engineering Congress and Exposition (vol. 48715, pp. 77--86).
  51. Tsai, Y.; Xu, W.; Yang, E.; Choi, C. (2008). Interfacial-tension-directed self-Assembly of nanowires on superhydrophobic surfaces. ASME International Mechanical Engineering Congress and Exposition (vol. 48746, pp. 749--753).
  52. Choi, C.; Kim, C. (2008). Measurement of liquid slip on nanoturf surfaces. ASME 4th Integrated Nanosystems Conference (pp. 59--60).
  53. Choi, C.; Kim, J.; Kim, C. (2008). Nanoturf surfaces for reduction of liquid flow drag in microchannels. ASME 2004 3rd Integrated Nanosystems Conference (pp. 47--48).
  54. Choi, C.; Westin, K. J.; Breuer, K. S. (2008). To slip or not to slip: Water flows in hydrophilic and hydrophobic microchannels. ASME 2002 International Mechanical Engineering Congress and Exposition (pp. 557--564).
  55. Choi, C.; Hagvall, S. H.; Dunn, J. C.; Wu, B. M.; Kim, C. (2006). Cell Adhesions on Nanoturf Surfaces. 19th IEEE International Conference on Micro Electro Mechanical Systems (pp. 402--405).
  56. Choi, C.; Kim, C. (2005). Fabrication of silicon nanostructures with various sidewall profiles and sharp tips. The 13th International Conference on Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS'05. (vol. 1, pp. 168--171).
  57. Choi, C.; Kim, C. (2005). Measurement of liquid slip on nanoturf surfaces. Integrated Nanosystems: Design, Synthesis, and Applications (vol. 42088, pp. 59--60).
  58. Choi, C. (2004). Mechanical and Aerospace Engineering Dept., University of California at Los Angeles (UCLA), CA 90095. USA We report nano-engineered surfaces (NanoTurf), designed to make various micro-and nano-fluidic devices. Proceedings of the 3rd ASME Integrated Nanosystems Conference: Design, Synthesis, and Applications: Presented at 3rd ASME Integrated Nanosystems Conference, September 22-24, 2004, Pasadena, California USA (pp. 47).
  59. Choi, C.; Kim, J.; Kim, C. (2004). Nanoturf surfaces for reduction of liquid flow drag in microchannels. Integrated Nanosystems: Design, Synthesis, and Applications (vol. 41774, pp. 47--48).
  60. Choi, C.; Westin, K. J.; Breuer, K. S. (2002). To slip or not to slip: Water flows in hydrophilic and hydrophobic microchannels. ASME International Mechanical Engineering Congress and Exposition (vol. 36487, pp. 557--564).
  61. Westin, K. J.; Breuer, K. S.; Choi, C.; Huang, P.; Cao, Z.; Caswell, B.; Richardson, P. D.; Sibulkin, M. (2001). Liquid transport properties in sub-micron channel flows. 2001 ASME International Mechanical Engineering Congress and Exposition (pp. 611--618).
  62. Westin, K. J.; Choi, C.; Breuer, K. S. (2001). Rheological Shear Experiments in Micron Scale Geometries. Micro Total Analysis Systems 2001 (pp. 635--636).

Journal Article

  1. Son, J.; Lee, K.; Lee, S.; Choi, C. (2024). Effects of Oxidized Metal Powders on Pore Defects in Powder-Fed Direct Energy Deposition. Micromachines (vol. 15, pp. 243).
  2. Huang , T.; Lee , J.; Choi, C.; Zhang, P. (2023). Condensation Heat Transfer on Slippery Lubricant-Impregnated Nanohole-Arrayed Stainless-Steel Surface. Surfaces and Interfaces (vol. 37).
  3. Jeong, C.; Jung, J.; Sheppard, K.; Choi, C. (2023). Control of the Nanopore Architecture of Anodic Alumina via Stepwise Anodization with Voltage Modulation and Pore Widening. Nanomaterials (vol. 13).
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  103. Du, K.; Liu, Y.; Wathuthanthri, I.; Choi, C. (2012). Dual applications of free-standing holographic nanopatterns for lift-off and stencil lithography. Journal of Vacuum Science \& Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena (6 ed., vol. 30, pp. 06FF04). AVS.
  104. Xu, W.; Choi, C. (2012). Effects of surface topography and colloid particles on the evaporation kinetics of sessile droplets on superhydrophobic surfaces. Journal of Heat Transfer (5 ed., vol. 134, pp. 051022). American Society of Mechanical Engineers.
  105. El Mel, A.; Gautron, E.; Angleraud, B.; Granier, A.; Xu, W.; Choi, C.; Briston, K.; Inkson, B.; Tessier, P. (2012). Fabrication of a nickel nanowire mesh electrode suspended on polymer substrate. Nanotechnology (27 ed., vol. 23, pp. 275603). IOP Publishing.
  106. Liu, Y.; Du, K.; Wathuthanthri, I.; Choi, C. (2012). From nanocone to nanodisc: Structural transformation of gold nanoarrays via simple mechanical stresses. Journal of Vacuum Science \& Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena (6 ed., vol. 30, pp. 06FF10). AVS.
  107. Xu, W.; Choi, C. (2012). From sticky to slippery droplets: dynamics of contact line depinning on superhydrophobic surfaces. Physical review letters (2 ed., vol. 109, pp. 024504). American Physical Society.
  108. El Mel, A.; Duvail, J.; Gautron, E.; Xu, W.; Choi, C.; Angleraud, B.; Granier, Agn\`es; Tessier, P. (2012). Highly ordered ultralong magnetic nanowires wrapped in stacked graphene layers. Beilstein journal of nanotechnology (1 ed., vol. 3, pp. 846--851). Beilstein-Institut.
  109. Jeong, C.; Choi, C. (2012). Single-step direct fabrication of pillar-on-pore hybrid nanostructures in anodizing aluminum for superior superhydrophobic efficiency. ACS applied materials \& interfaces (2 ed., vol. 4, pp. 842--848). American Chemical Society.
  110. Du, K.; Wathuthanthri, I.; Liu, Y.; Xu, W.; Choi, C. (2012). Wafer-Scale pattern transfer of metal nanostructures on polydimethylsiloxane (PDMS) substrates via holographic nanopatterns. ACS applied materials \& interfaces (10 ed., vol. 4, pp. 5505--5514). American Chemical Society.
  111. El Mel, A.; Buffi\`ere, Marie; Massuyeau, F.; Gautron, E.; Xu, W.; Choi, C.; Wery, J.; Faulques, E.; Barreau, N.; Tessier, P. (2011). Direct synthesis of ZNO nanowires on nanopatterned surface by magnetron sputtering. Chemical Vapor Deposition (10-12 ed., vol. 17, pp. 337--341). WILEY-VCH Verlag Weinheim.
  112. Xu, W.; Leeladhar, R.; Tsai, Y.; Yang, E.; Choi, C. (2011). Evaporative self-assembly of nanowires on superhydrophobic surfaces of nanotip latching structures. Applied Physics Letters (7 ed., vol. 98, pp. 073101). AIP.
  113. Xu, W.; Choi, C. (2011). Experimental studies on evaporation kinetics and wetting dynamics of nanofluid droplets on superhydrophobic surfaces of micro-post patterns. Journal of Adhesion Science and Technology (12 ed., vol. 25, pp. 1305--1321). Taylor \& Francis Group.
  114. El Mel, A.; Achour, A.; Xu, W.; Choi, C.; Gautron, E.; Angleraud, B.; Granier, Agn\`es; Le Brizoual, L.; Djouadi, M.; Tessier, P. (2011). Hierarchical carbon nanostructure design: ultra-long carbon nanofibers decorated with carbon nanotubes. Nanotechnology (43 ed., vol. 22, pp. 435302). IOP Publishing.
  115. Du, K.; Wathuthanthri, I.; Mao, W.; Xu, W.; Choi, C. (2011). Large-area pattern transfer of metallic nanostructures on glass substrates via interference lithography. Nanotechnology (28 ed., vol. 22, pp. 285306). IOP Publishing.
  116. Wathuthanthri, I.; Mao, W.; Xu, W.; Choi, C.; others (2011). Large-area pattern transfer of metallic nanostructures on glass substrates via interference lithography. Nanotechnology (Print) (28 ed., vol. 22).
  117. Mao, W.; Wathuthanthri, I.; Choi, C. (2011). Tunable two-mirror interference lithography system for wafer-scale nanopatterning. Optics letters (16 ed., vol. 36, pp. 3176--3178). Optical Society of America.
  118. Tsai, Y.; Choi, C.; Gao, N.; Yang, E. (2011). Tunable wetting mechanism of polypyrrole surfaces and low-voltage droplet manipulation via redox. Langmuir (7 ed., vol. 27, pp. 4249--4256). American Chemical Society.
  119. Wathuthanthri, I.; Mao, W.; Choi, C. (2011). Two degrees-of-freedom Lloyd--mirror interferometer for superior pattern coverage area. Optics letters (9 ed., vol. 36, pp. 1593--1595). Optical Society of America.
  120. Tsai, Y.; Xu, W.; Yang, E.; Choi, C. (2010). Self-assembly of nanowires at three-phase contact lines on superhydrophobic surfaces. Nanoscience and Nanotechnology Letters (2 ed., vol. 2, pp. 150--156). American Scientific Publishers.
  121. El Mel, A.; Gautron, E.; Choi, C.; Angleraud, B.; Granier, Agn\`es; Tessier, P. (2010). Titanium carbide/carbon composite nanofibers prepared by a plasma process. Nanotechnology (43 ed., vol. 21, pp. 435603). IOP Publishing.
  122. Choi, C.; Heydarkhan-Hagvall, S.; Wu, B. M.; Dunn, J. C.; Beygui, R. E.; Kim, Chang-Jin “CJ” (2009). Cell growth as a sheet on three-dimensional sharp-tip nanostructures. Journal of Biomedical Materials Research Part A: An Official Journal of The Society for Biomaterials, The Japanese Society for Biomaterials, and The Australian Society for Biomaterials and the Korean Society for Biomaterials (3 ed., vol. 89, pp. 804--817). Wiley Subscription Services, Inc., A Wiley Company Hoboken.
  123. Choi, C.; Kim, Chang-Jin “CJ” (2009). Droplet evaporation of pure water and protein solution on nanostructured superhydrophobic surfaces of varying heights. Langmuir (13 ed., vol. 25, pp. 7561--7567). ACS Publications.
  124. Schenke-Layland, K.; Rofail, F.; Heydarkhan, S.; Gluck, J. M.; Ingle, N. P.; Angelis, E.; Choi, C.; MacLellan, W. R.; Beygui, R. E.; Shemin, R. J.; others (2009). The use of three-dimensional nanostructures to instruct cells to produce extracellular matrix for regenerative medicine strategies. Biomaterials (27 ed., vol. 30, pp. 4665--4675). Elsevier.
  125. Lee, C.; Choi, C.; others (2008). Structured surfaces for a giant liquid slip. Physical review letters (6 ed., vol. 101, pp. 064501). American Physical Society.
  126. Choi, C.; Hagvall, S. H.; Wu, B. M.; Dunn, J. C.; Beygui, R. E.; others (2007). Cell interaction with three-dimensional sharp-tip nanotopography. Biomaterials (9 ed., vol. 28, pp. 1672--1679). Elsevier.
  127. Heydarkhan-Hagvall, S.; Choi, C.; Dunn, J.; Heydarkhan, S.; Schenke-Layland, K.; MacLellan, W. R.; Beygui, R. E. (2007). Influence of systematically varied nano-scale topography on cell morphology and adhesion. Cell communication \& adhesion (5 ed., vol. 14, pp. 181--194). Taylor \& Francis.
  128. Choi, C.; Kim, C. (2006). Choi and Kim reply. Physical Review Letters (10 ed., vol. 97, pp. 109602). American Physical Society.
  129. Choi, C.; Ulmanella, U.; Kim, J.; Ho, C.; Kim, C. (2006). Effective slip and friction reduction in nanograted superhydrophobic microchannels. Physics of fluids (8 ed., vol. 18, pp. 087105). AIP.
  130. Choi, C.; Kim, C. (2006). Fabrication of a dense array of tall nanostructures over a large sample area with sidewall profile and tip sharpness control. Nanotechnology (21 ed., vol. 17, pp. 5326). IOP Publishing.
  131. Choi, C.; Kim, C. (2006). Large slip of aqueous liquid flow over a nanoengineered superhydrophobic surface. Physical review letters (6 ed., vol. 96, pp. 066001). American Physical Society.
  132. Choi, C. (2006). Nanoengineered surfaces: Design, fabrication, and applications to microfluidics and tissue engineering.
  133. Westin, K.; Choi, C.; Breuer, K. (2003). A novel system for measuring liquid flow rates with nanoliter per minute resolution. Experiments in fluids (5 ed., vol. 34, pp. 635--642). Springer-Verlag.
  134. Choi, C.; Westin, K. J.; Breuer, K. S. (2003). Apparent slip flows in hydrophilic and hydrophobic microchannels. Physics of fluids (10 ed., vol. 15, pp. 2897--2902). AIP.

Newspaper Article

  1. Choi, C. (2024). Dirty Ice May Be Ugly, but It Has One Advantage. The NY Times .

Other

  1. Yang, E.; Xu, J.; Englot, B.; Choi, C. (2024). In situ oil cleanup and recovery using smart polymer integrated surface vessels (US Patent 12,054,406 ed.).
  2. Choi, C.; Lee, J. (2024). Oil-impregnated nanoporous oxide coating for inhibiting aluminum corrosion (US Patent 12,006,583 ed.).
  3. Xi, Y.; Choi, C. (2024). Artificial cornea with double-side microtextured pHEMA hydrogel (US Patent 11,950,997 ed.).
  4. Choi, C.; Lee, J. (2023). Anti-Corrosive Oil-Impregnated Nanoporous Oxide Coating For Stainless Steel.
  5. Choi, C.; Lee, J. (2023). Oil-impregnated nanoporous oxide coatings having bottle-shaped pores.
  6. Yang, E. N.; Besser, R.; Xu, J.; Xu, W.; Englot, B.; Choi, C. (2022). In Situ Oil Cleanup and Recovery using Smart Polymer Integrated Surface Vessels.
  7. Choi, C.; Lee, J. (2022). Oil-impregnated nanoporous oxide coating for inhibiting aluminum corrosion.
  8. Xi, Y.; Choi, C.; Yu, X.; Liang, J. (2020). Artificial Cornea with Double-Side Microtextured pHEMA Hydrogel.
  9. Mittal, K.; Choi, C. (2020). Ice Adhesion: Mechanism, Measurement, and Mitigation. John Wiley \& Sons.
  10. Yang, E.; Xu, J.; Xu, W.; Choi, C.; Englot, B. (2020). In Situ Oil Cleanup And Recovery Using Smart Polymer Integrated Surface Vessels. US Patent pending.
  11. Choi, C.; Lee, J. (2019). Oil-impregnated nanoporous oxide coating for inhibiting aluminum corrosion.
  12. Du, K.; Wathuthanthri, I.; Choi, C. (2017). The rise of scalable micro/nanopatterning. Multidisciplinary Digital Publishing Institute.
  13. Ozbay, R.; Kibar, A.; Choi, C. (2015). Bubble adhesion to superhydrophilic surfaces. Advances in Contact Angle, Wettability and Adhesion (vol. 2). John Wiley \& Sons, Inc.: Hoboken, NJ.
  14. Jeong, C.; Choi, C. (2014). Nanoengineered superhydrophobic anti-corrosive aluminum surfaces.
  15. Mao, W.; Wathuthanthri, I.; Choi, C. (2014). Tunable two-mirror interference lithography system.
  16. Tolias, P.; Ritter, A.; Yu, X.; Wang, H.; Du, H.; Choi, C.; Zhang, W.; Gu, Y.; Lee, W. (2013). Microfluidic-based cell-culturing platform and method.
  17. Yang, E.; Tsai, Y.; Choi, C. (2012). Marangoni stress-driven droplet manipulation on smart polymers for ultra-low voltage digital microfluidics.

Patent

  1. Yang, E.; Xu, J.; Englot, B.; Choi, C. (2024). In situ oil cleanup and recovery using smart polymer integrated surface vessels (US Patent 12,054,406 ed.).
  2. Choi, C.; Lee, J. (2024). Oil-impregnated nanoporous oxide coating for inhibiting aluminum corrosion (US Patent 12,006,583 ed.).
  3. Xi, Y.; Choi, C. (2024). Artificial cornea with double-side microtextured pHEMA hydrogel (US Patent 11,950,997 ed.).
  4. Choi, C.; Lee, J. (2023). Anti-Corrosive Oil-Impregnated Nanoporous Oxide Coating For Stainless Steel.
  5. Choi, C.; Lee, J. (2023). Oil-impregnated nanoporous oxide coatings having bottle-shaped pores.
  6. Choi, C.; Lee, J. (2019). Oil-impregnated nanoporous oxide coating for inhibiting aluminum corrosion.

Technical Report

  1. Yang, E.; Xu, J.; Xu, W.; Englot, B.; Choi, C. (2023). In situ oil cleanup and recovery using smart polymer integrated surface vessels.
  2. Choi, C. (2017). Oil-Impregnated Oxide Nanostructures for Aluminum Corrosion Prevention. Stevens Institute of Technology Hoboken United States.

US Patent application

  1. Yang, E.; Xu, J.; Xu, W.; Choi, C.; Englot, B. (2020). In Situ Oil Cleanup And Recovery Using Smart Polymer Integrated Surface Vessels. US Patent pending.

Courses

ENGR-234 Thermodynamics
ME-234 Mechanical Engineering Thermodynamics
ME-342 Fluid Mechanics
ME-354 Heat Transfer
ME-423/424 Engineering Design
ME/NANO-680 Fundamentals of Micro/Nano Fluidics