The effect of direct interactions on Brownian diffusion
- 1 February 1981
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 74 (3), 2006-2010
- https://doi.org/10.1063/1.441244
Abstract
The effect of direct interactions between suspended particles on their diffusion coefficient is investigated starting from the generalized Einstein relation. It is shown that an attractive potential added to the hard core repulsion leads to a decrease of the diffusion coefficient, whereas a repulsive term has the opposite effect. Simple examples of attractive and repulsive potentials are considered in some detail. Using these results the possibility to obtain information on the interaction potential between suspended particles from their diffusion coefficient is discussed.Keywords
This publication has 27 references indexed in Scilit:
- The effects of direct and hydrodynamic forces on macromolecular diffusionChemical Physics, 1979
- On the wave vector dependent mutual diffusion of interacting Brownian particlesThe Journal of Chemical Physics, 1979
- Diffusion effects in solutions of Brownian particlesJournal of Physics A: General Physics, 1976
- Generalized diffusion processes and light scattering from a moderately concentrated solution of spherical macroparticlesChemical Physics, 1976
- Diffusion of spherical macromolecules at finite concentrationThe Journal of Chemical Physics, 1976
- Correlations for interacting Brownian particlesThe Journal of Chemical Physics, 1976
- Continuum hydrodynamic interactions and diffusionThe Journal of Chemical Physics, 1975
- Effects of intermacromolecular interactions on diffusion. I. Two-component solutionsThe Journal of Chemical Physics, 1974
- Brownian motion of N interacting particles. II. Hydrodynamical evaluation of the diffusion tensor matrixThe Journal of Chemical Physics, 1973
- Light scattering from dilute macromolecular solutionsThe Journal of Chemical Physics, 1973