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Koohee Han

Postdoctoral Appointee



  • Ph.D. in Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina, USA, 2018

Professional Experience

  • 2018-present Postdoctoral Appointee, Materials Science Division, Argonne National Laboratory
  • 2016 Module Process Engineer (Intern), Apple Inc., Cupertino, California, USA

Selected Awards

  • James K. Ferrell Outstanding Ph.D. Graduate Award, Dept. of Chemical and Biomolecular Engineering, North Carolina State University (2019)
  • Schoenborn Oral Presentation Award (2nd place), Dept. of Chemical and Biomolecular Engineering, North Carolina State University (2018)
  • Langmuir Oral Presentation Award (3rd place), The 91st ACS Colloid & Surface Science Symposium (2017)
  • Dean’s TA Award for Excellence in Classroom Teaching, The Graduate School, North Carolina State University (2017)

Research Interests

  • Directional interactions in colloidal systems
  • Bio-inspired out-of-equilibrium materials
  • Smart responsive materials

Selected Publications

  • Emergence of Self-Organized Multi-Vortex States in Flocks of Active Rollers
    K. Han, G. Kokot, O. Tovkach, A. Glatz, I. Aranson, A. Snezhko
    Proc. Natl. Acad. Sci. U.S.A. (PNAS) 117, 9706 (2020)
  • Reconfigurable Structure and Tunable Transport in Synchronized Active Spinner Materials
    K. Han, G. Kokot, S. Das, R. G. Winkler, G. Gompper, A. Snezhko
    Science Advances 6, eaaz8535 (2020)
  • Engineering of Self-Propelling Microbots and Microdevices Powered by Magnetic and Electric Fields
    K. Han, C. W. Shields, O. D. Velev
    Advanced Functional Materials 28, 1705953 (2018)
  • Sequence-Encoded Colloidal Origami and Microbot Assemblies from Patchy Magnetic Cubes
    K. Han, C. W. Shields, N. D. Diwakar, B. Bharti, G. P. López, O. D. Velev
    Science Advances 3, e1701108 (2017)