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URN to cite this document: urn:nbn:de:bvb:703-epub-6966-2
Title data
Schmidt, Winfried ; Aranson, Igor S. ; Zimmermann, Walter:
Suppression of bacterial rheotaxis in wavy channels.
In: Physical Review Research.
Vol. 4
(October 2022)
.
- 043005.
ISSN 2643-1564
DOI der Verlagsversion: https://doi.org/10.1103/PhysRevResearch.4.043005
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Abstract
Controlling the swimming behavior of bacteria is crucial, for example, to prevent contamination of ducts and catheters. We show that bacteria modeled by deformable microswimmers can accumulate in flows through straight microchannels either in their center or on previously unknown attractors near the channel walls. In flows through wavy microchannels we predict a resonance effect for semiflexible microswimmers. As a result, microswimmers can be deflected in a controlled manner so that they swim in modulated channels distributed over the channel cross section rather than localized near the wall or the channel center. Thus, depending on the flow amplitude, both upstream orientation of swimmers and their accumulation at the boundaries, which can promote surface rheotaxis, are suppressed. Our results suggest strategies for controlling the behavior of live and synthetic swimmers in microchannels.
Further data
| Item Type: | Article in a journal |
|---|---|
| DDC Subjects: | 500 Science > 530 Physics |
| Institutions of the University: | Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics I > Chair Soft Matter Theory and Nonlinear Dynamics - Univ.-Prof. Dr. Walter Zimmermann Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics I |
| Language: | English |
| Originates at UBT: | Yes |
| URN: | urn:nbn:de:bvb:703-epub-6966-2 |
| Date Deposited: | 21 Apr 2023 08:44 |
| Last Modified: | 16 Nov 2023 06:54 |
| URI: | https://epub.uni-bayreuth.de/id/eprint/6966 |
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