DLVO Interaction Energies between Hollow Spherical Particles and Collector Surfaces

Application of DLVO energy map to evaluate interactions between spherical colloids and rough surfaces.

This study theoretically evaluated interactions between spherical colloids and rough surfaces in three-dimensional space using Derjaguin-Landau-Verwey- Overbeek (DLVO) energy/force map and curve. The rough surfaces were modeled as a flat surface covered by hemispherical protrusions. A modified Derjaguin approach was employed to calculate the interaction energies and forces. Results show that mo...

Interaction forces between oil-water particle interfaces--non-DLVO forces.

The interaction force between a rigid silica sphere and a butyl or octyl acetate droplet was measured in an aqueous environment using atomic force microscopy (AFM). The force measurements were performed without added stabilizers and the observed force behavior was found to be dependent on the type of inorganic electrolyte present, where the interfacial tension was constant over the electrolyte ...

Bacterial Interaction with Graphene Particles and Surfaces

Electrostatic double-layer interaction between spherical particles inside a rough capillary.

Predictions of electrostatic double-layer interaction forces between two similarly charged spherical colloidal particles inside an infinitely long "rough" capillary are presented. A simple model of a rough cylindrical surface is proposed, which assumes the capillary wall to be a periodic function of axial position. The periodic roughness of the wall is characterized by the wavelength and amplit...

Interaction between a Couple of Spherical Particles: Analogy with Circular Young Slits

The scattering diagram of a couple of spherical particles is compared to the interference pattern of circular Young slits. This comparison is used to analyze the coupling of light by a couple of particles in the single but also in the multiple scattering cases. This makes possible to explain physically the interaction between light and such a couple of particles, that is for example to distingu...