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Equilibrium sedimentation profiles of charged colloidal suspensions

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Abstract:

We investigate the sedimentation equilibrium of a charge-stabilized colloidal suspension in the regime of low ionic strength. We analyze the asymptotic behaviour of the density profiles on the basis of a simple Poisson-Boltzmann theory and show that the effective mass we can deduce from the barometric law corresponds to the actual mass of the colloidal particles, contrary to previous studies.

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Authors and Affiliations

  1. Laboratoire de Physique (Unité Mixte de Recherche du Centre National de la Recherche Scientifique - UMR 5672), Ecole Normale Supérieure de Lyon, 69364 Lyon cedex 07, France, , , , , , FR

    G. Téllez & T. Biben

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  1. G. Téllez
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  2. T. Biben
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Received 5 May 1999 and Received in final form 25 August 1999

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Téllez, G., Biben, T. Equilibrium sedimentation profiles of charged colloidal suspensions. Eur. Phys. J. E 2, 137–143 (2000). https://doi.org/10.1007/s101890050047

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  • DOI: https://doi.org/10.1007/s101890050047

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