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Direct Measurement of the Flow Field around Swimming Microorganisms
Open accessAbstract
Swimming microorganisms create flows that influence their mutual interactions and modify the rheology of their suspensions. While extensively studied theoretically, these flows have not been measured in detail around any freely-swimming microorganism. We report such measurements for the microphytes Volvox carteri and Chlamydomonas reinhardtii. The minute (∼0.3%) density excess of V. carteri over water leads to a strongly dominant Stokeslet contribution, with the widely-assumed stresslet flow only a correction to the subleading source dipole term. This implies that suspensions of V. carteri have features similar to suspensions of sedimenting particles. The flow in the region around C. reinhardtii where significant hydrodynamic interaction is likely to occur differs qualitatively from a puller stresslet, and can be described by a simple three-Stokeslet model.
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Cited by
Physics of microswimmers—single particle motion and collective behavior: a review
Elgeti, J., Winkler, R. G., & Gompper, G. (2015) · Reports on Progress in Physics · doi:10.1088/0034-4885/78/5/056601 · Cited by 1,514
Spagnolie, S. E., & Lauga, E. (2012) · Journal of Fluid Mechanics · doi:10.1017/jfm.2012.101 · Cited by 522
Self-Propelled Rods: Insights and Perspectives for Active Matter
Bär, M., Großmann, R., Heidenreich, S., & Peruani, F. (2020) · Annual Review of Condensed Matter Physics · doi:10.1146/annurev-conmatphys-031119-050611 · Cited by 285
Odd dynamics of living chiral crystals
Tan, T. H., Mietke, A., Li, J., Chen, Y., Higinbotham, H., Foster, P. J., Gokhale, S., Dunkel, J., & Fakhri, N. (2022) · Nature · doi:10.1038/s41586-022-04889-6 · Cited by 280
Oscillatory Flows Induced by Microorganisms Swimming in Two Dimensions
Guasto, J. S., Johnson, K. A., & Gollub, J. P. (2010) · Physical Review Letters · doi:10.1103/physrevlett.105.168102 · Cited by 273
Metadata
- Authors
- Drescher, K., Goldstein, R. E., Michel, N., Polin, M., & Tuval, I.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2010-10-11
- Volume
- 105
- Issue
- 16
- Pages
- 168101-168101
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1996305222
- Cited by
- 443
- References
- 0
- FWCI
- 15.72
- Type
- journal article
- Language
- en
- Open access
- green
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- Drescher, K., Goldstein, R. E., Michel, N., Polin, M., & Tuval, I. (2010). Direct Measurement of the Flow Field around Swimming Microorganisms. Physical Review Letters. https://doi.org/10.1103/physrevlett.105.168101
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