Howse, J.R., Jones, R.A.L. orcid.org/0000-0001-5400-6369, Ryan, A.J. orcid.org/0000-0001-7737-0526 et al. (3 more authors) (2007) Self-motile colloidal particles: From directed propulsion to random walk. Physical Review Letters, 99. 048102. ISSN 0031-9007
Abstract
The motion of an artificial microscale swimmer that uses a chemical reaction catalyzed on its own surface to achieve autonomous propulsion is fully characterized experimentally. It is shown that at short times it has a substantial component of directed motion, with a velocity that depends on the concentration of fuel molecules. At longer times, the motion reverts to a random walk with a substantially enhanced diffusion coefficient. Our results suggest strategies for designing artificial chemotactic systems.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2007 American Physical Society. This is an author produced version of a paper subsequently published in Physical Review Letters. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield) The University of Sheffield > Faculty of Science (Sheffield) > Department of Chemistry (Sheffield) The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 22 Sep 2017 14:37 |
Last Modified: | 24 Mar 2018 15:48 |
Published Version: | https://doi.org/10.1103/PhysRevLett.99.048102 |
Status: | Published |
Publisher: | American Physical Society |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevLett.99.048102 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:121585 |