Characterization of Hydrodynamic Surface Interactions of Escherichia coli Cell Bodies in Shear Flow
Condensed Matter journal club
Characterization of Hydrodynamic Surface Interactions of Escherichia coli Cell Bodies in Shear Flow
- Event time: 11:30am
- Event date: 2nd October 2009
- Speaker: Laurence Wilson (Formerly School of Physics & Astronomy, University of Edinburgh)
- Location: Room 2511, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Event details
We experimentally demonstrate that nonflagellated Escherichia coli strains follow modified Jeffery orbits in shear flow near a surface. We fully characterize their Jeffery orbits as a function of their aspect ratios and distance from that surface. Thanks to the linearity of Navier-Stokes equations under low-Reynolds-number conditions, the hydrodynamic body-wall interactions described here can be superimposed with flagellar motility and Brownian motion to construct models that explain the full picture of bacterial motility near a surface under shear flow.
Phys. Rev. Lett. 103 138103 (2009)
Phys. Rev. Lett. 103 138103 (2009)
About Condensed Matter journal club
Given the diversity of research in the CM group, chosen topics vary widely. We tend to stick to high-impact journals - Nature, Science, PNAS and PRL have been popular - but this is not prescriptive..