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Refereed Journal Papers

     ISI Researcher ID: E-9045-2010;  Google Scholar ID: JvSAUiAAAAAJ

  1. H. A. Guo, S. Maheshwari, M. S. Patel, E. C. Bhatt, C. H. Chen, "Droplet actuation on superhydrophobic substrates via electric field gradients," Applied Physics Letters, vol. 114, no. 113702 (2019). [pdf] [supplemental] [movies: v1, v2, v3]

  2. F. Liu*, R. L. Chavez*, S. N. Patek, A. Pringle, J. J. Feng, C. H. Chen, "Asymmetric drop coalescence launches fungal ballistospores with directionality," Journal of the Royal Society Interface, vol. 14, no. 20170083 (2017). {*equal contributions} [pdf] [supplemental] [movies: S1, S2, S3, S4, S5, S6, S7, S8, S9]

    Reported by New York Times, New Scientist

  3. H. A. Guo, K. F. Wiedenheft, C. H. Chen, "Hotspot size effect on conductive heat spreading," IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 7, pp. 1459-1464 (2017). [pdf]

  4. K. F. Wiedenheft, H. A. Guo, X. Qu, J. B. Boreyko, F. Liu, K. Zhang, F. Eid, A. Choudhury, Z. Li, C. H. Chen,  "Hotspot cooling with jumping-drop vapor chambers," Applied Physics Letters, vol. 110, no. 141601 (2017). [pdf] [supplemental] [cover]

    Cover of Applied Physics Letters; Reported by AIP Publishing

  5. R. L. Chavez*, F. Liu*, J. J. Feng, C. H. Chen, "Capillary-inertial colloidal catapults upon drop coalescence," Applied Physics Letters, vol. 109, no. 011601 (2016). {*equal contributions} [pdf] [movies: 1, 2, 3] [cover]

    Cover of Applied Physics Letters; Reported by AIP Publishing

  6. K. Zhang, F. Liu, A. J. Williams, X. Qu, J. J. Feng, C. H. Chen, "Self-propelled droplet removal from hydrophobic fiber-based coalescers," Physical Review Letters, vol. 115, no. 074502 (2015). [pdf] [supplemental; videos: S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12]

    Reported in Physics (Physical Review Focus)

  7. X. Qu, J. B. Boreyko, F. Liu, R. L. Agapov, N. V. Lavrik, S. T. Retterer, J. J. Feng, C. P. Collier, C. H. Chen, "Self-propelled sweeping removal of dropwise condensate," Applied Physics Letters, vol. 106, no. 221601 (2015). [pdf] [movies: 1, 2, 3, 4, 5]

  8. F. Liu*, G. Ghigliotti*, J. J. Feng, C. H. Chen, "Numerical simulations of self-propelled jumping upon drop coalescence on non-wetting surfaces," Journal of Fluid Mechanics, vol. 752, pp. 39-65 (2014). {*equal contributions} [pdf] [movies: 1, 2, 3, 4, 5, 6]

  9. F. Liu, G. Ghigliotti, J. J. Feng, C. H. Chen, "Self-propelled jumping upon drop coalescence on Leidenfrost surfaces," Journal of Fluid Mechanics, vol. 752, pp. 22-38 (2014). [pdf] [movies: 1, 2, 3, 4, 5]

  10. F. Liu, C. H. Chen, "Electrohydrodynamic cone-jet bridges: stability diagram and operating modes," Journal of Electrostatics, vol. 72, pp. 330-335 (2014). [pdf]

  11. W. J. Scheideler, C. H. Chen, "The minimum flow rate scaling of Taylor cone-jets issued from a nozzle," Applied Physics Letters, vol. 104, no. 024103 (2014). [pdf] [supplemental]

  12. K. M. Wisdom*, J. A. Watson*, X. Qu*, F. Liu, G. S. Watson, C. H. Chen, "Self-cleaning of superhydrophobic surfaces by self-propelled jumping condensate," Proceedings of the National Academy of Sciences, vol. 110, pp. 7992-7997 (2013). {*equal contributions} [pdf] [supplemental; videos: S1, S2, S3, S4, S5, S6, S7]

    Highlighted in This Week in PNAS; Reported in Scientific American

  13. J. B. Boreyko, C. H. Chen, "Vapor chambers with jumping-drop liquid return from superhydrophobic condensers," International Journal of Heat and Mass Transfer, vol. 61, pp. 409-418 (2013). [pdf]

  14. J. B. Boreyko, Y. Zhao, C. H. Chen, "Planar jumping-drop thermal diodes," Applied Physics Letters, vol. 99, no. 234105 (2011). [pdf]

    Reported in Materials Today, Mechanical Engineering

  15. D. B. Bober, C. H. Chen, "Pulsating electrohydrodynamic cone-jets: from choked jet to oscillating cone," Journal of Fluid Mechanics, vol. 689, pp. 552-563 (2011). [pdf]

  16. Y. Zhao, D. B. Bober, C. H. Chen, "Nonclogging resistive pulse sensing with electrohydrodynamic cone-jet bridges," Physical Review X, vol. 1, no. 021007 (2011). [pdf] [videos: 1, 2, 3, 4, 5]

  17. Y. Zhao, F. Liu, C. H. Chen, "Thermocapillary actuation of binary drops on solid surfaces," Applied Physics Letters, vol. 99, no. 104101 (2011). [pdf] [videos: v1, v2]

  18. J. B. Boreyko, C. H. Baker, C. R. Poley, C. H. Chen, "Wetting and dewetting transitions on hierarchical superhydrophobic surfaces," Langmuir, vol. 27, pp. 7502-7509 (2011). [pdf]

  19. J. B. Boreyko, C. H. Chen, "Self-propelled dropwise condensate on superhydrophobic surfaces," Physical Review Letters, vol. 103, no. 184501 (2009). [pdf] [supplemental: videoS1, S2, S3, S4, S5]

    Highlighted in Science, Reported on the Discovery Channel

  20. J. B. Boreyko, C. H. Chen, "Restoring superhydrophobicity of lotus leaves with vibration-induced dewetting," Physical Review Letters, vol. 103, no. 174502 (2009). [pdf] [supplemental, videoS1] [cover]

    Cover of Physical Review Letters, Reported in The New York Times

  21. C. H. Chen, Q. Cai, C. Tsai, C. L. Chen, G. Xiong, Y. Yu, Z. F. Ren, "Dropwise condensation on superhydrophobic surfaces with two-tier roughness," Applied Physics Letters, vol. 90, no. 173108 (2007). [pdf]

  22. C. H. Chen, D. A. Saville, I. A. Aksay, "Scaling laws for pulsed electrohydrodynamic drop formation," Applied Physics Letters, vol. 89, no. 124103 (2006). [pdf] [supplemental]

  23. C. H. Chen, D. A. Saville, I. A. Aksay, "Electrohydrodynamic 'drop-and-place' particle deployment," Applied Physics Letters, vol. 88, no. 154104 (2006). [pdf]

  24. C. H. Chen, H. Lin, S. K. Lele, J. G. Santiago, "Convective and absolute electrokinetic instability with conductivity gradients," Journal of Fluid Mechanics, vol. 524, pp. 263-303 (2005). [pdf]

  25. H. Lin, B. D. Storey, M. H. Oddy, C. H. Chen, J. G. Santiago, "Instability of electrokinetic microchannel flows with conductivity gradients," Physics of Fluids, vol. 16, pp. 1922-1935 (2004). [pdf]

    9th Most Cited Paper in 2003-2007, Physics of Fluids

  26. A. Matta, O. M. Knio, R. G. Ghanem, C. H. Chen, J. G. Santiago, B. Debusschere, H. N. Najm, "Computational study of band crossing reactions," Journal of Microelectromechanical Systems, vol. 13, pp. 310-322 (2004). [pdf]

  27. C. H. Chen, J. G. Santiago, "A planar electroosmotic micropump," Journal of Microelectromechanical Systems, vol. 11, pp. 672-683 (2002). [pdf]

  28. S. Zeng, C. H. Chen, J. G. Santiago, J.-R. Chen, R. N. Zare, J. A. Tripp, F. Svec, J. M. J. Frechet, "Electroosmotic flow pumps with polymer frits," Sensors and Actuators B, vol. 82, pp. 209-212 (2002). [pdf]

  29. S. Zeng, C. H. Chen, J. C. Mikkelsen, J. G. Santiago, "Fabrication and characterization of electroosmotic micropumps," Sensors and Actuators B, vol. 79, pp. 107-114 (2001). [pdf]

Editorial Materials

  1. J. B. Boreyko, C. H. Chen, "Self-propelled jumping drops on superhydrophobic surfaces," Physics of Fluids, vol. 22, no. 091110 (2010). [pdf] [video]

    APS DFD 2009 Gallery of Fluid Motion

  2. J. G. Santiago, C. H. Chen, "Special issue on fundamental principles and techniques in microfluidics," Lab on a Chip, vol. 9, no. 17, pp. 2423-2424 (2009). [pdf]

Book Chapters

  1. R. L. Chen, C. H. Chen, B. C. Chen and C. L. Chen, "Electroosmotically-actuated hydrogel for nastic actuation," in Plants and Mechanical Motion: A Synthetic Approach to Nastic Materials and Structures (Ed. N. M. Wereley, J. M. Sater), Destech, pp. 87-97 (2012). [pdf] [link]

  2. C. H. Chen, "Electrohydrodynamic stability," in Electrokinetics and Electrohydrodynamics in Microsystems (Ed. A. Ramos), Springer, pp. 177-220 (2011). [pdf] [link]

    Invited by the International Centre for Mechanical Sciences

Conference Proceedings

     Published since September 2007

  1. F. Liu, J. B. Boreyko, X. Qu, C. H. Chen, "Self-propelled jumping condensate: fundamental mechanisms and vapor-chamber applications," 9th International Conference on Boiling and Condensation Heat Transfer, Boulder, CO (2015). [pdf] [link]

  2. Y. Zhao, C. H. Chen, "Electrohydrodynamic Coulter counting," Proceedings of the 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences (µTAS), pp. 620-622, Groningen, The Netherlands (2010). [pdf] [link]

  3. Y. Zhao, J. B. Boreyko, M. H. Chiang, C. H. Baker, C. H. Chen, "Beetle inspired electrospray vapor chamber," Proceedings of the ASME 2nd International Conference on Micro/Nanoscale Heat and Mass Transfer, vol. 3, pp. 439-441, Shanghai, China (2009). [pdf] [link]

  4. Y. Zhao*, T. Chen*, X. Zhang, S. Zauscher, C. H. Chen, "Development of adaptive vapor chamber with thermoresponsive polymer coating," Proceedings of the ASME 2nd International Conference on Micro/Nanoscale Heat and Mass Transfer, vol. 3, pp. 395-398, Shanghai, China (2009). {*equal contributions} [pdf] [link]

  5. C. H. Chen, Q. Cai, C. L. Chen, "Evaporation and condensation on two-tier superhydrophobic surfaces," Proceedings of the ASME 1st International Conference on Micro/Nanoscale Heat Transfer, parts A&B, pp. 1021-1022, Tainan, Taiwan (2008). [pdf] [link]

Refereed Curriculum Units

  1. J. A. Stave, C. H. Chen, "Surface tension unit" (with four lessons and activities: I. Surface tension basics; II. Capillarity - measuring surface tension; III. Wetting and contact angle; IV. Superhydrophobicity - the lotus effect), TeachEngineering.org (2011). [link]

  2. J. A. Stave, C. H. Chen, "Particle sensing: the Coulter counter" (lesson and activity), TeachEngineering.org (2011). [link]

Patents and Applications

     16 US Patents with 4 Licenses

  1. J. M. Crain, J. S. Lettow, I. A. Aksay, S. Korkut, K. S. Chiang, C. H. Chen, R. K. Prud'homme, "Printed electronics," US Patent Nos. 8278757, 8697485, 9107312, 9504150, 9913374, 10244628 (issued 2012-2018).

    Licensed by Vorbeck Inc., Jessup, MD

  2. I. A. Aksay, D. A. Saville, H. F. Poon, S. Korkut, C. H. Chen, "Electrohydrodynamic printing and manufacturing," US Patent No. 8906285 (issued 2014).

    Licensed by Vorbeck Inc., Jessup, MD

  3. C. H. Chen, J. B. Boreyko, Y. Zhao,  "Thermal diode device and methods," US Patent No. 8716689 (issued 2014).

    Finalist of Collegiate Inventors Competition

  4. M. W. Kendig, C. H. Chen, D. M. Tench, J. F. DeNatale, F. M. Discenzo, "Analyte detection via electrochemically transported and generated reagent," US Patent No. 8153062 (issued 2012).

  5. R. L. Chen, B. C. Chen, C. L. Chen, C. H. Chen, "High energy density electro-osmotic pump and actuator," US Patent No. 8076820 (issued 2011).

  6. K. E. Goodson, C. H. Chen, D. E. Huber, J. M. Koo, L. N. Jiang, T. W. Kenny, D. J. Laser, J. C. Mikkelsen, J. G. Santiago, E. N. Wang, S. Zeng, L. Zhang, "Closed-loop microchannel cooling system," US Patent No. 7334630 (issued 2008).

  7. K. E. Goodson, T. W. Kenny, J. G. Santiago, D. J. Laser, C. H. Chen, "Electroosmotic micropumps with planar features," US Patent No. 7316543 (issued 2008).

    Licensed by Wave 80 Biosciences Inc., San Francisco, CA

  8. K. E. Goodson, C. H. Chen, D. E. Huber, J. M. Koo, L. N. Jiang, T. W. Kenny, D. J. Laser, J. C. Mikkelsen, J. G. Santiago, E. N. Wang, S. Zeng, L. Zhang, "Electroosmotic microchannel cooling system," US Patent Nos. 6942018, 6991024, 7131486, 7185697 (issued 2005-2007).

    Licensed by Cooligy Inc., Mountain View, CA

Mail: 178 Hudson Hall, Box 90300, Durham, NC 27708-0300  |  Tel: 919-660-5343  |  Email: chuanhua.chen@duke.edu

Department of Mechanical Engineering and Materials Science | Pratt School of Engineering | Duke University