Adsorption of colloidal particles in the presence of external field

TL;DR

This paper introduces a new class of sequential adsorption models where particles approach surfaces at an inclined angle, affecting layer order and adsorption kinetics, with implications for various physical processes.

Contribution

It proposes shadow models for adsorption with inclined particle approach, demonstrating their impact on layer order and jamming limits through numerical simulations.

Findings

More ordered adsorbed layers form under the new models

Inclined approach modifies the jamming limit

Implications for capillary electrophoresis and related processes

Abstract

We present a new class of sequential adsorption models in which the adsorbing particles reach the surface following an inclined direction (shadow models). Capillary electrophoresis, adsorption in the presence of a shear or on an inclined substrate are physical manifestations of these models. Numerical simulations are carried out to show how the new adsorption mechanisms are responsible for the formation of more ordered adsorbed layers and have important implications in the kinetics, in particular modifying the jamming limit.