Session H10: Physics of Bacteria II

8:00 AM–11:00 AM, Tuesday, March 16, 2010
Room: A106

Sponsoring Unit: DBP
Chair: Eshel Ben-Jacob, Tel Aviv University

Abstract ID: BAPS.2010.MAR.H10.8

Abstract: H10.00008 : Curved microchannels and bacterial streamers

9:24 AM–9:36 AM

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  Roberto Rusconi
    (Harvard University)

  Sigolene Lecuyer
    (Harvard University)

  Laura Guglielmini
    (Princeton University)

  Howard Stone
    (Princeton University)

Bacterial biofilms are commonly identified as microbial communities attached to a surface and encased in a self-secreted extracellular matrix. Due to their increased resistance to antimicrobial agents, biofilms have an enormous impact on health and medicine (e.g., wound healing, implant-associated infections, disease transmission). On the other hand, they constitute a major component of the stream ecosystem by increasing transport of nutrients and retention of suspended particles. In this talk, we present an experimental study of bacterial biofilm development in a microfluidic device. In particular, we show the formation of filamentous structures, or streamers, in curved channels and how these suspended biofilms are linked to the underlying hydrodynamics.

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