PMID:16239332
| Citation |
Lauga, E, DiLuzio, WR, Whitesides, GM and Stone, HA (2006) Swimming in circles: motion of bacteria near solid boundaries. Biophys. J. 90:400-12 |
|---|---|
| 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. |
| Links |
PubMed PMC1367047 Online version:10.1529/biophysj.105.069401 |
| Keywords |
Algorithms; Bacteria/metabolism; Bacterial Adhesion; Bacterial Physiological Phenomena; Biophysics/methods; Cell Movement; Chemotaxis; Computer Simulation; Escherichia coli/metabolism; Flagella/metabolism; Image Processing, Computer-Assisted; Microscopy, Phase-Contrast; Microscopy, Video; Models, Biological; Models, Statistical; Models, Theoretical; Motion; Movement |
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