Effects of shear thinning viscosity and viscoelastic stresses on flagellated bacteria motility

  title={Effects of shear thinning viscosity and viscoelastic stresses on flagellated bacteria motility},
  author={Zijie Qu and K. Breuer},
  journal={arXiv: Biological Physics},
  • Zijie Qu, K. Breuer
  • Published 2020
  • Materials Science, Physics
  • arXiv: Biological Physics
  • The behavior of flagellated bacteria swimming in non-Newtonian media remains an area with contradictory and conflicting results. We report on the behavior of wild-type and smooth-swimming E. coli in Newtonian, shear thinning and viscoelastic media, measuring their trajectories and swimming speed using a three dimensional real-time tracking microscope. We conclude that the speed enhancement in Methocel solution at higher concentration is due to shear-thinning and an analytical model is used to… CONTINUE READING
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