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| Autori principali: | , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2022
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2212.11222 |
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| _version_ | 1866917581293617152 |
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| author | Kurzthaler, Christina Zhao, Yongfeng Zhou, Nan Schwarz-Linek, Jana Devailly, Clemence Arlt, Jochen Huang, Jian-Dong Poon, Wilson C. K. Franosch, Thomas Tailleur, Julien Martinez, Vincent A. |
| author_facet | Kurzthaler, Christina Zhao, Yongfeng Zhou, Nan Schwarz-Linek, Jana Devailly, Clemence Arlt, Jochen Huang, Jian-Dong Poon, Wilson C. K. Franosch, Thomas Tailleur, Julien Martinez, Vincent A. |
| contents | We characterize the full spatiotemporal gait of populations of swimming {\it Escherichia coli} using renewal processes to analyze the measurements of intermediate scattering functions. This allows us to demonstrate quantitatively how the persistence length of an engineered strain can be controlled by a chemical inducer and to report a controlled transition from perpetual tumbling to smooth swimming. For wild-type {\it E.~coli}, we measure simultaneously the microscopic motility parameters and the large-scale effective diffusivity, hence quantitatively bridging for the first time small-scale directed swimming and macroscopic diffusion. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_11222 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Characterization and Control of the Run-and-Tumble Dynamics of {\it Escherichia Coli} Kurzthaler, Christina Zhao, Yongfeng Zhou, Nan Schwarz-Linek, Jana Devailly, Clemence Arlt, Jochen Huang, Jian-Dong Poon, Wilson C. K. Franosch, Thomas Tailleur, Julien Martinez, Vincent A. Soft Condensed Matter Biological Physics We characterize the full spatiotemporal gait of populations of swimming {\it Escherichia coli} using renewal processes to analyze the measurements of intermediate scattering functions. This allows us to demonstrate quantitatively how the persistence length of an engineered strain can be controlled by a chemical inducer and to report a controlled transition from perpetual tumbling to smooth swimming. For wild-type {\it E.~coli}, we measure simultaneously the microscopic motility parameters and the large-scale effective diffusivity, hence quantitatively bridging for the first time small-scale directed swimming and macroscopic diffusion. |
| title | Characterization and Control of the Run-and-Tumble Dynamics of {\it Escherichia Coli} |
| topic | Soft Condensed Matter Biological Physics |
| url | https://arxiv.org/abs/2212.11222 |