Swimming in circles: Motion of bacteria near solid boundaries

by: E Lauga, WR Diluzio, GM Whitesides, HA Stone

Biophys. J., Vol. 90, No. 2. (2006), pp. 400-412.

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Abstract

Near a solid boundary, Escherichia coli swims in clockwise circular motion. We provide a hydrodynamic model for this behavior. We show that circular trajectories are natural consequences of force-free and torque-free swimming and the hydrodynamic interactions with the boundary, which also leads to a hydrodynamic trapping of the cells close to the surface. We compare the results of the model with experimental data and obtain reasonable agreement. In particular, the radius of curvature of the trajectory is observed to increase with the length of the bacterium body. © 2006 by the Biophysical Society.

@article{citeulike:1770708, abstract = {Near a solid boundary, Escherichia coli swims in clockwise circular motion. We provide a hydrodynamic model for this behavior. We show that circular trajectories are natural consequences of force-free and torque-free swimming and the hydrodynamic interactions with the boundary, which also leads to a hydrodynamic trapping of the cells close to the surface. We compare the results of the model with experimental data and obtain reasonable agreement. In particular, the radius of curvature of the trajectory is observed to increase with the length of the bacterium body. {\copyright} 2006 by the Biophysical Society.}, address = {Dept. of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, United States}, author = {Lauga, E. and Diluzio, W. R. and Whitesides, G. M. and Stone, H. A. }, citeulike-article-id = {1770708}, doi = {http://dx.doi.org/10.1529/biophysj.105.069401}, journal = {Biophys. J.}, keywords = {bacteria, circular, interface, motion, swimming}, number = {2}, pages = {400--412}, posted-at = {2007-10-15 17:17:02}, priority = {2}, title = {Swimming in circles: Motion of bacteria near solid boundaries}, url = {http://dx.doi.org/10.1529/biophysj.105.069401}, volume = {90}, year = {2006} }

RIS record

TY - JOUR ID - citeulike:1770708 L3 - citeulike-article-id:1770708 TI - Swimming in circles: Motion of bacteria near solid boundaries JF - Biophys. J. VL - 90 IS - 2 SP - 400 EP - 412 AD - Dept. of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, United States N2 - Near a solid boundary, Escherichia coli swims in clockwise circular motion. We provide a hydrodynamic model for this behavior. We show that circular trajectories are natural consequences of force-free and torque-free swimming and the hydrodynamic interactions with the boundary, which also leads to a hydrodynamic trapping of the cells close to the surface. We compare the results of the model with experimental data and obtain reasonable agreement. In particular, the radius of curvature of the trajectory is observed to increase with the length of the bacterium body. © 2006 by the Biophysical Society. KW - bacteria KW - circular KW - interface KW - motion KW - swimming AU - Lauga, E AU - Diluzio, WR AU - Whitesides, GM AU - Stone, HA PY - 2006/// UR - http://dx.doi.org/10.1529/biophysj.105.069401 ER -

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