Hydrodynamic attraction of swimming microorganisms by surfaces

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dc.creatorBerke, Allison P.
dc.creatorTurner, Linda
dc.creatorBerg, Howard C.
dc.creatorLauga, Eric
dc.date2008-06-18
dc.date.accessioned2026-07-07T10:06:32Z
dc.date.available2026-07-07T10:06:32Z
dc.descriptionCells swimming in confined environments are attracted by surfaces. We measure the steady-state distribution of smooth-swimming bacteria (Escherichia coli) between two glass plates. In agreement with earlier studies, we find a strong increase of the cell concentration at the boundaries. We demonstrate theoretically that hydrodynamic interactions of the swimming cells with solid surfaces lead to their re-orientation in the direction parallel to the surfaces, as well as their attraction by the closest wall. A model is derived for the steady-state distribution of swimming cells, which compares favorably with our measurements. We exploit our data to estimate the flagellar propulsive force in swimming E. coli.
dc.identifierhttps://arxiv.org/abs/0806.2898
dc.identifierhttp://arxiv.org/abs/0806.2898
dc.identifierPhys. Rev. Lett. (2008) 101, 038102
dc.identifierdoi:10.1103/PhysRevLett.101.038102
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170356
dc.subjectSoft Condensed Matter
dc.subjectBiological Physics
dc.subjectFluid Dynamics
dc.titleHydrodynamic attraction of swimming microorganisms by surfaces
dc.typetext

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