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Issue 41, 2013
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Curvature reversal of the circular motion of swimming bacteria probes for slip at solid/liquid interfaces

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Abstract

The orientation of the circular motion of most swimming E. coli at a solid surface is shown to be (i) reversed by supplementing the medium with alginate and (ii) restored by rendering the glass surface positively charged. Given slip promotion by the polymer and suppression by its anchoring on the surface, observations are interpreted by slip at the boundary. This points out bacterial swimming as a probe of the solid/fluid boundary condition.

Graphical abstract: Curvature reversal of the circular motion of swimming bacteria probes for slip at solid/liquid interfaces

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Article information


Submitted
22 May 2013
Accepted
24 Jul 2013
First published
26 Jul 2013

Soft Matter, 2013,9, 9759-9762
Article type
Communication

Curvature reversal of the circular motion of swimming bacteria probes for slip at solid/liquid interfaces

L. Lemelle, J. Palierne, E. Chatre, C. Vaillant and C. Place, Soft Matter, 2013, 9, 9759
DOI: 10.1039/C3SM51426A

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