Self-motile colloidal particles: from directed propulsion to random walk.
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 con...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2007
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| _version_ | 1797105650944180224 |
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| author | Howse, JR Jones, R Ryan, A Gough, T Vafabakhsh, R Golestanian, R |
| author_facet | Howse, JR Jones, R Ryan, A Gough, T Vafabakhsh, R Golestanian, R |
| author_sort | Howse, JR |
| collection | OXFORD |
| description | 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. |
| first_indexed | 2024-03-07T06:50:21Z |
| format | Journal article |
| id | oxford-uuid:fc5a9f84-93a2-4962-82cb-11dc0f4c1941 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:50:21Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:fc5a9f84-93a2-4962-82cb-11dc0f4c19412022-03-27T13:20:05ZSelf-motile colloidal particles: from directed propulsion to random walk.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fc5a9f84-93a2-4962-82cb-11dc0f4c1941EnglishSymplectic Elements at Oxford2007Howse, JRJones, RRyan, AGough, TVafabakhsh, RGolestanian, RThe 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. |
| spellingShingle | Howse, JR Jones, R Ryan, A Gough, T Vafabakhsh, R Golestanian, R Self-motile colloidal particles: from directed propulsion to random walk. |
| title | Self-motile colloidal particles: from directed propulsion to random walk. |
| title_full | Self-motile colloidal particles: from directed propulsion to random walk. |
| title_fullStr | Self-motile colloidal particles: from directed propulsion to random walk. |
| title_full_unstemmed | Self-motile colloidal particles: from directed propulsion to random walk. |
| title_short | Self-motile colloidal particles: from directed propulsion to random walk. |
| title_sort | self motile colloidal particles from directed propulsion to random walk |
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