Designing phoretic micro- and nano-swimmers
Small objects can swim by generating around them fields or gradients which in turn induce fluid motion past their surface by phoretic surface effects. We quantify for arbitrary swimmer shapes and surface patterns, how efficient swimming requires both surface ``activity'' to generate the fi...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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IOP Publishing
2007
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| _version_ | 1826263351153393664 |
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| author | Golestanian, R Liverpool, T Ajdari, A |
| author_facet | Golestanian, R Liverpool, T Ajdari, A |
| author_sort | Golestanian, R |
| collection | OXFORD |
| description | Small objects can swim by generating around them fields or gradients which in turn induce fluid motion past their surface by phoretic surface effects. We quantify for arbitrary swimmer shapes and surface patterns, how efficient swimming requires both surface ``activity'' to generate the fields, and surface ``phoretic mobility.'' We show in particular that (i) swimming requires symmetry breaking in either or both of the patterns of "activity" and ``mobility,'' and (ii) for a given geometrical shape and surface pattern, the swimming velocity is size-independent. In addition, for given available surface properties, our calculation framework provides a guide for optimizing the design of swimmers. |
| first_indexed | 2024-03-06T19:50:22Z |
| format | Journal article |
| id | oxford-uuid:23c3238d-ac58-460e-b4f4-b662a25eb39c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:50:22Z |
| publishDate | 2007 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | oxford-uuid:23c3238d-ac58-460e-b4f4-b662a25eb39c2022-03-26T11:46:03ZDesigning phoretic micro- and nano-swimmersJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:23c3238d-ac58-460e-b4f4-b662a25eb39cEnglishSymplectic Elements at OxfordIOP Publishing2007Golestanian, RLiverpool, TAjdari, ASmall objects can swim by generating around them fields or gradients which in turn induce fluid motion past their surface by phoretic surface effects. We quantify for arbitrary swimmer shapes and surface patterns, how efficient swimming requires both surface ``activity'' to generate the fields, and surface ``phoretic mobility.'' We show in particular that (i) swimming requires symmetry breaking in either or both of the patterns of "activity" and ``mobility,'' and (ii) for a given geometrical shape and surface pattern, the swimming velocity is size-independent. In addition, for given available surface properties, our calculation framework provides a guide for optimizing the design of swimmers. |
| spellingShingle | Golestanian, R Liverpool, T Ajdari, A Designing phoretic micro- and nano-swimmers |
| title | Designing phoretic micro- and nano-swimmers |
| title_full | Designing phoretic micro- and nano-swimmers |
| title_fullStr | Designing phoretic micro- and nano-swimmers |
| title_full_unstemmed | Designing phoretic micro- and nano-swimmers |
| title_short | Designing phoretic micro- and nano-swimmers |
| title_sort | designing phoretic micro and nano swimmers |
| work_keys_str_mv | AT golestanianr designingphoreticmicroandnanoswimmers AT liverpoolt designingphoreticmicroandnanoswimmers AT ajdaria designingphoreticmicroandnanoswimmers |