Measurements of the near-wall hindered diffusion of colloidal particles in the presence of an electric field

Yutaka Kazoe, Minami Yoda

研究成果: Article

31 引用 (Scopus)

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Understanding near-wall diffusion of small particles and biomolecules is important in colloid science and many microfluidic devices. Our experimental measurements of the diffusion of 110-460 nm radii suspended particles in the presence of electric fields up to 3.1 kV/m using particle tracking are in agreement with theoretical predictions for diffusion hindered by the presence of a solid surface. The results suggest that the external electric field has little, if any, effect upon the hindered diffusion of colloidal particles, even when the electrophoretic force exceeds the Stokes drag.

元の言語English
記事番号124104
ジャーナルApplied Physics Letters
99
発行部数12
DOI
出版物ステータスPublished - 2011 9 19
外部発表Yes

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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