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  Chemotaxis in external fields: simulations for active magnetic biological matter

Codutti, A., Bente, K., Faivre, D., & Klumpp, S. (2019). Chemotaxis in external fields: simulations for active magnetic biological matter. PLoS Computational Biology, 15(12): e1007548. doi:10.1371/journal.pcbi.1007548.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-6D5C-B Version Permalink: http://hdl.handle.net/21.11116/0000-0005-6D5D-A
Genre: Journal Article

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Codutti, Agnese1, Author              
Bente, Klaas1, Author              
Faivre, Damien1, Author              
Klumpp, Stefan2, Author              
Affiliations:
1Damien Faivre, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863290              
2Stefan Klumpp, Theorie & Bio-Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863329              

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 Abstract: Author summary In this paper, we propose a modified Active Brownian particle model to describe bacterial swimming behavior under the influence of external forces and torques, in particular of a magnetic torque. This type of interaction is particularly important for magnetic biohybrids (i.e. motile bacteria coupled to a synthetic magnetic component) and for magnetotactic bacteria (i.e. bacteria with a natural intracellular magnetic chain), which perform chemotaxis to swim along chemical gradients, but are also directed by an external magnetic field. The model allows us to investigate the benefits and disadvantages of such coupling between two different directionality mechanisms. In particular we show that the magnetic torque can speed chemotaxis up in some conditions, while it can hinder it in other cases. In addition to an understanding of the swimming strategies of naturally magnetotactic organisms, the results may guide the design of future biomedical devices.

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Language(s): eng - English
 Dates: 2019-12-192019
 Publication Status: Published in print
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 Identifiers: DOI: 10.1371/journal.pcbi.1007548
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Title: PLoS Computational Biology
Source Genre: Journal
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Publ. Info: San Francisco, CA : Public Library of Science
Pages: - Volume / Issue: 15 (12) Sequence Number: e1007548 Start / End Page: - Identifier: ISSN: 1553-734X