Brownian diffusion of a particle at an air/liquid interface: the elastic (not viscous) response of the surface

Here, the effect of the elastic response of the surface on the translational diffusion coefficient of a partly submerged-in-water spherical Brownian particle is considered.

Concentration dependence of translational diffusion coefficients for globular proteins

This investigation examines published results of traditional diffusion experiments on ovalbumin and bovine serum albumin to determine the extent to which assumed concentration independence of the translational diffusion coefficient is a reasonable approximation in the analysis of boundary spreading in sedimentation velocity experiments on proteins.