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Eujin Um,  Ph.D.

Education and Research Achievements


Education and Training

  • Present -  Research Professor, Department of Biomedical Engineering, School of Life Sciences, UNIST

  • 2017 - Research Fellow and Adjunct Professor, IBS Center for Soft and Living Matter Department of Biomedical
                Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan, Republic of Korea
                (Advisor: Yoon-Kyoung Cho)

  • 2015 -  Postdoctoral Research Associate (Complex Fluids Group), Department of Department of Mechanical                    and Aerospace Engineering Princeton University, Princeton, NJ, U.S.A. (Advisor: Howard A. Stone)

  • 2012 - Ph.D.  Bio and Brain Engineering, KAIST

  • 2007 - M.S.   Biosystems, KAIST

  • 2005 - B.S.    Mechanical and Aerospace Engineering, Seoul National University
                          (Double major in Interdisciplinary Program of Biotechnology)




  1. Eujin Um, Jung Min Oh,  Steve Granickac  and  Yoon-Kyoung Cho, "Cell migration in microengineered tumor environments", Lab Chip, 2017,17, 4171-4185

  2. Hyoungsoo Kim, Francois Boulogne, Eujin Um, Ian Jacobi, Ernie Button, Howard A. Stone, "Controlled uniform coating from the interplay of Marangoni flows and surface- adsorbed macromolecules," Physical Review Letters, 116: 124501 (2016).

  3. Youn-Hee Park, Do-Hyun Lee, Eujin Um, Je-Kyun Park, "On-chip generation of monodisperse giant unilamellar lipid vesicles containing quantum dots," Electrophoresis, 37(10): 1353-1358 (2016).

  4. Sangwoo Shin, Eujin Um, Benedikt Sabass, Jessie T. Ault, Mohammad Rahimi, Patrick B. Warren, Howard A. Stone, "Size-dependent control of colloid transport via solute gradients in dead-end channels," Proceedings of the National Academy of Sciences, 113 (2): 257– 261 (2016).

  5. Joo H. Kang, Eujin Um, Alexander Diaz, Harry Driscoll, Melissa J. Rodas, Karel Domansky, Alexander L. Watters, Michael Super, Howard A. Stone, Donald E. Ingber, "Optimization of Pathogen Capture in Flowing Fluids with Magnetic Nanoparticles," Small, 11 (42): 5657–5666 (2015).

  6. Eujin Um†, Janine K. Nunes†, Tamara Pico, and Howard A. Stone, “Multicompartment microfibers: fabrication and selective dissolution of composite droplet-in-fiber structures,” Journal of Materials Chemistry B, 2 (45): 7866–7871 (2014).- †: Equal contribution

  7. Eujin Um, Matthew E. Rogers, and Howard A. Stone, “Combinatorial generation of droplets by controlled assembly and coalescence,” Lab on a Chip, 13 (23): 4674-4680 (2013).

  8. Joonwoo Jeong†, Eujin Um†, Je-Kyun Park, and Mahn Won Kim, “One-step preparation of magnetic Janus particles using controlled phase separation of polymer blends and nanoparticles,” RSC Advances, 3 (29): 11801-11806 (2013).- †: Equal contribution

  9. Eujin Um, Eugene Rha, Sulim Choi, Seung-Goo Lee, and Je-Kyun Park, “Mesh-integrated microdroplet array for simultaneous merging and storage of single-cell droplets,” Lab on a Chip, 12 (9): 1594-1597 (2012).

  10. Do-Hyun Lee, Wonhye Lee, Eujin Um, Je-Kyun Park, "Microbridge structures for uniform interval control of flowing picoliter droplets in microfluidic networks," Biomicrofluidics, 5, 034117 (2011).- Selected for Virtual Journal of Nanoscale Science and Technology, 24(9), Microfluidics and Nanofluidics (2011)

  11. Eujin Um, Seung-Goo Lee, and Je-Kyun Park, "Random breakup of microdroplets for single-cell encapsulation," Applied Physics Letters, 97, 153703 (2010).

  12. Joo H. Kang, Eujin Um, and Je-Kyun Park, "Fabrication of poly(dimethylsiloxane) membrane with well-defined through-holes for three-dimensional microfluidic networks," Journal of Micromechanics and Microengineering, 19, 045027 (2009).

  13. Eujin Um and Je-Kyun Park, "A microfluidic abacus channel for controlling the addition of droplets," Lab on a Chip, 9 (2): 207-212 (2009).- Highlighted in the RSC’s Chemical Technology news magazine (Issue 2, 2009), and also selected as one of the ten most accessed Lab on a Chip articles in January)

  14. Eujin Um, Dae-Sik Lee, Hyun Bong Pyo, and Je-Kyun Park, "Continuous generation of hydrogel beads and encapsulation of biological materials using a microfluidic droplet- merging channel," Microfluidics and Nanofluidics, 5 (4): 541-549 (2008).

  15. Joonseok Lee, Eujin Um, Je-Kyun Park, and Chan Beum Park, "Microfluidic self- assembly of insulin monomers into amyloid fibrils on a solid surface," Langmuir, 24 (14): 7068-7071 (2008).




Research Professor,

Department of Biomedical Engineering, School of Life Sciences

Ulsan National Institute of Science and Technology (UNIST)