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Steve Kuei (Fed)

NRC Postdoctoral Associate

Steve Kuei earned his Ph.D in Chemical and Biomolecular Engineering at Rice University, working with Professor Sibani Lisa Biswal. While there, he studied the dynamics of single, semi-flexible fibers as they were driven by external fields, using a combination of magnetic colloidal particle chains and Brownian dynamics simulations. Prior to his graduate studies, he studied the effect of simple flows on long, flexible filaments for his undergraduate thesis, and whether or (k)not they could self-entangle from flow effects, using computational methods.

At NIST, working with Steve Hudson as an NRC Postdoctoral Fellow, Steve K. is shifting up many length scales. He is currently investigating the rheological and microstructural properties of rod-like particle solutions, using Fd bacteriophage and its mutants as a model rod system. Between high shear capillary rheology and scattering measurements, he seeks to determine the effects of fiber flexibility and other factors on the rotational diffusion and pair correlations of rod-like particles, with the ultimate aim of writing theoretical distribution functions that accurately capture and connect their microstructural and bulk properties.



Kuei, S., Garza, B. and Biswal, S.L., 2017. From strings to coils: Rotational dynamics of DNA-linked colloidal chainsPhysical Review Fluids2(10), p.104102.

Kuei, S., Słowicka, A.M., Ekiel-Jeżewska, M.L., Wajnryb, E. and Stone, H.A., 2015. Dynamics and topology of a flexible chain: knots in steady shear flowNew Journal of Physics17(5), p.053009.


[Google Scholar]


  • NRC Postdoctoral Research Associateship Award, 2018
  • Langmuir Graduate Student Poster Presentation Winner (ACS Colloids), 2017
  • Langmuir Graduate Student Poster Presentation Winner (ACS Colloids), 2016
  • Riki Kobayashi Fellowship Award, 2015
Created June 18, 2019, Updated June 15, 2021