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Collective chemotaxis of active nematic droplets

Abstract:
Collective chemotaxis plays a key role in the navigation of cell clusters in e.g. embryogenesis and cancer metastasis. Using the active nematic continuum equations, coupled to a chemical field that regulates activity, we demonstrate and explain a physical mechanism that results in collective chemotaxis. The activity naturally leads to cell polarisation at the cluster interface which induces outwards flows. The chemical gradient then breaks the symmetry of the flow field, leading to a net motion. The velocity is independent of the cluster size in agreement with experiment.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevE.102.020601

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
ORCID:
0000-0001-8268-5469


Publisher:
American Physical Society
Journal:
Physical Review E: Statistical, Nonlinear, and Soft Matter Physics More from this journal
Volume:
102
Article number:
020601
Publication date:
2020-08-31
Acceptance date:
2020-08-12
DOI:
EISSN:
1550-2376
ISSN:
1539-3755


Language:
English
Keywords:
Pubs id:
1127240
Local pid:
pubs:1127240
Deposit date:
2020-08-19

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