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Hydrodynamic Coupling of Two Brownian Spheres to a Planar Surface

Dufresne, Eric R. and Squires, Todd M. and Brenner, Michael P. and Grier, David G. (2000) Hydrodynamic Coupling of Two Brownian Spheres to a Planar Surface. Physical Review Letters, 85 (15). pp. 3317-3320. ISSN 0031-9007. doi:10.1103/PhysRevLett.85.3317.

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We describe direct imaging measurements of the collective and relative diffusion of two colloidal spheres near a flat plate. The bounding surface modifies the spheres' dynamics, even at separations of tens of radii. This behavior is captured by a stokeslet analysis of fluid flow driven by the spheres' and wall's no-slip boundary conditions. In particular, this analysis reveals surprising asymmetry in the normal modes for pair diffusion near a flat surface.

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Additional Information:©2000 The American Physical Society Received 22 March 2000 Work at the University of Chicago was supported by the National Science Foundation through Grant No. DMR-9730189, through the MRSEC program of the NSF through Grant No. DMR-9880595, and by the David and Lucile Packard Foundation. Theoretical work was supported by the A. P. Sloan Foundation, the Mathematical Science Division of the National Science Foundation, and a NDSEG grant to T. S.
Issue or Number:15
Record Number:CaltechAUTHORS:DUFprl00
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1311
Deposited By: Archive Administrator
Deposited On:09 Jan 2006
Last Modified:08 Nov 2021 19:09

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