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  Curvature-guided motility of microalgae in geometric confinement

Ostapenko, T., Schwarzendahl, F. J., Böddeker, T. J., Kreis, C. T., Cammann, J., Mazza, M. G., et al. (2018). Curvature-guided motility of microalgae in geometric confinement. Physical Review Letters, 120(6): 068002. doi:10.1103/PhysRevLett.120.068002.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-729D-F Version Permalink: http://hdl.handle.net/21.11116/0000-0000-729E-E
Genre: Journal Article

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 Creators:
Ostapenko, Tanya1, Author              
Schwarzendahl, Fabian Jan2, Author              
Böddeker, Thomas J.1, Author              
Kreis, Christian Titus1, Author              
Cammann, Jan2, Author              
Mazza, Marco G.2, Author              
Bäumchen, Oliver1, Author              
Affiliations:
1Group Dynamics of fluid and biological interfaces, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063300              
2Group Non-equilibrium soft matter, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063308              

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 Abstract: Microorganisms, such as bacteria and microalgae, often live in habitats consisting of a liquid phase and a plethora of interfaces. The precise ways in which these motile microbes behave in their confined environment remain unclear. Using experiments and Brownian dynamics simulations, we study the motility of a single Chlamydomonas microalga in an isolated microhabitat with controlled geometric properties.We demonstrate how the geometry of the habitat controls the cell’s navigation in confinement. The probability of finding the cell swimming near the boundary increases with the wall curvature, as seen for both circular and elliptical chambers. The theory, utilizing an asymmetric dumbbell model of the cell and steric wall interactions, captures this curvature-guided navigation quantitatively with no free parameters.

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Language(s): eng - English
 Dates: 2018-02-072018-02-09
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.120.068002
 Degree: -

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Title: Physical Review Letters
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: 6 Volume / Issue: 120 (6) Sequence Number: 068002 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1