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The interplay of hydrodynamics and cells
4-juin-2010 11:41 11:41
Il y a: 8 yrs


AUTEUR : PR. HOWARD STONE



The interplay of hydrodynamics and cells : From red blood cells to bacterial biofilms.


04/06/10

 Howard STONE

The interplay of hydrodynamics and cells: From red blood cells to bacterial biofilms

Many flows contain suspended cells. There can be common circumstances where the flow and the response of the cells are coupled. Here we provide two such examples, one involving the flow of red blood cells and the other involving the formation of bacterial biofilms. In particular, first we describe experiments quantifying the shear-induced release of ATP from red blood cells, from which an analysis of the results suggests a model for the mechanism of ATP release as a consequence of the cell deformation. Second,  we describe experiments with solutions of bacteria in laminar flows in curved microchannels. Thread-like structures of biofilm are formed and the origin for these structures is traced to three-dimensional flow features in the neighborhood of corners.

 

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Dernière mise à jour : 13/02/2017