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Active micromachines: Microfluidics powered by mesoscale turbulence

Abstract:
Dense active matter, from bacterial suspensions and microtubule bundles driven by motor proteins to cellular monolayers and synthetic Janus particles, is characterised by mesoscale turbulence, the emergence of chaotic flow structures. By immersing an ordered array of symmetric rotors in an active fluid, we introduce a microfluidic system that exploits spontaneous symmetry breaking in mesoscale turbulence to generate work. The lattice of rotors self-organises into a spin-state where neighbouring discs continuously rotate in permanent alternating directions due to combined hydrodynamic and elastic effects. Our virtual prototype demonstrates a new research direction for the design of micromachines powered by the nematohydrodynamic properties of active turbulence.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1126/sciadv.1501854

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
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
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author


Publisher:
American Association for the Advancement of Science
Journal:
Science Advances More from this journal
Publication date:
2016-07-08
Acceptance date:
2016-06-14
DOI:
EISSN:
2375-2548
ISSN:
2375-2548


Pubs id:
pubs:629282
UUID:
uuid:674d9d4c-572e-4c43-984d-0321c5645908
Local pid:
pubs:629282
Source identifiers:
629282
Deposit date:
2016-06-22

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