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Particle Diffusion in a Quasi-Two-Dimensional Bacterial Bath
Abstract
We study the effect of bacterial motion on micron-scale beads in a freely suspended soap film. Given the sizes of bacteria and beads, the geometry of the experiment is quasi-two-dimensional. Large positional fluctuations are observed for beads as large as 10 microm in diameter, and the measured mean-square displacements indicate superdiffusion in short times and normal diffusion in long times. Though the phenomenon is similar to Brownian motions of small particles, its physical origin is different and can be attributed to the collective dynamics of bacteria.
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Citations
Cited by
Vicsek, T., & Zafeiris, A. (2012) · Physics Reports · doi:10.1016/j.physrep.2012.03.004 · Cited by 2,923
Di Leonardo, R., Angelani, L., Dell’Arciprete, D., Ruocco, G., Iebba, V., Schippa, S., Conte, M. P., Mecarini, F., De Angelis, F., & Di Fabrizio, E. (2010) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0910426107 · Cited by 707
Effective Viscosity of Microswimmer Suspensions
Rafaï, S., Jibuti, L., & Peyla, P. (2010) · Physical Review Letters · doi:10.1103/physrevlett.104.098102 · Cited by 323
Films of bacteria at interfaces
Vaccari, L., Molaei, M., Niepa, T. H. R., Lee, D., Leheny, R. L., & Stebe, K. J. (2017) · Advances in Colloid and Interface Science · doi:10.1016/j.cis.2017.07.016 · Cited by 70
Metadata
- Authors
- Wu, X.-L., & Libchaber, A.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2000-03-27
- Volume
- 84
- Issue
- 13
- Pages
- 3017-3020
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1973449286
- Cited by
- 903
- References
- 0
- FWCI
- 4.92
- Type
- journal article
- Language
- en
- Open access
- closed
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