Stability of emulsified heavy oil: the combined effects of deterministic DLVO forces and random surface charges

Optimizing the Synthesis of Monodisperse Colloidal Spheres Using Holographic Particle Characterization

Holographic particle characterization measures the sizes and compositions of individual colloidal particles dispersed in fluid media and rapidly amasses statistics on the distributions of these properties, even for complex heterogeneous dispersions. This information is useful for analyzing and optimizing protocols for synthesizing colloidal particles. We illustrate how holographic characterization can guide process design through a case study on a particularly versatile model system composed of an aqueous dispersion of micrometer-scale spheres synthesized from the organosilane monomer 3-(trimethoxysilyl)propyl methacrylate.

A small point regarding DLVO coagulation conditions

Criteria for colloidal destabilization that we had imposed in earlier studies (Yeung et al., 2003 [1] and Esmaeili et al., 2012 [2]) are re-examined. Those conditions are shown here to be incorrect, but with only negligible error. We also note a minor issue with the widely-accepted condition of coagulation that is seen in almost all colloids literature.