Self-motile colloidal particles: From directed propulsion to Random walk

Howse, J. R.; Jones, R. A. L.; Ryan, A. J.; Gough, T.; Vafabakhsh, R.; Golestanian, R.

doi:10.1103/PhysRevLett.99.048102

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

Self-motile colloidal particles: From directed propulsion to Random walk

MPS-Authors

/persons/resource/persons219873

Golestanian, R.
Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Howse, J. R., Jones, R. A. L., Ryan, A. J., Gough, T., Vafabakhsh, R., & Golestanian, R. (2007). Self-motile colloidal particles: From directed propulsion to Random walk. Physical Review Letters, 99(4):. doi:10.1103/PhysRevLett.99.048102.

引用: https://hdl.handle.net/21.11116/0000-0001-A6EB-B

要旨

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. © 2007 The American Physical Society.