Interaction potential and near wall dynamics of spherical colloids in suspensions of rod-like fd-virus
Institut für Festkörperforschung, Forschungszentrum Jülich, 52425, Jülich, Germany
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Accepted: 6 February 2008
Published online: 22 April 2008
Averaged diffusivities of spherical colloids in solutions of rod-like particles, i.e. fd-virus, were measured with EWDLS and TIRM. While the experimentally observed near wall dynamics of the spheres in the absence of fd are well described by standard hydrodynamic theories, there are significant deviations at finite fd concentrations. Both experimental methods yield data which are significantly smaller than the theoretical predictions.
PACS: 82.70.Dd Colloids – / 78.35.+c Brillouin and Rayleigh scattering; other light scattering – / 68.08.-p Liquid-solid interfaces –
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2008