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80,727 results
  • Slip Length Dependent Propulsion Speed of Catalytic Colloidal Swimmers near Walls. [Journal Article]
    Phys Rev Lett 2020; 124(4):048002Ketzetzi S, de Graaf J, … Kraft DJ
  • Catalytic colloidal swimmers that propel due to self-generated fluid flows exhibit strong affinity for surfaces. Here, we report experimental measurements of a significant dependence of such microswimmers' speed on the nearby substrate material. We find that speeds scale with the solution contact angle θ on the substrate, which relates to the associated hydrodynamic substrate slip length, as V∝(c…
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