Fernando González-Caballero

TL;DR: The recommendations given in the report apply mainly to smooth and homogeneous solid particles and plugs in aqueous systems; some attention is paid to nonaqueous media and less ideal surfaces.

TL;DR: In this article, the status quo and recent progress in electrokinetics are reviewed, and a thorough description of the main electrokinetic methods is given: special attention is paid to their ranges of applicability as well as to the validity of the underlying theoretical models.

TL;DR: The characteristic relaxation frequency of the dielectric constant was pH-dependent, with a significant minimum at pH 7 in all cases, which is in good agreement with the initial assumption that at acid pH values, the electric surface charge of faces is negative, whereas the edges possess a positive charge, thus favoring attractive face-to-edge interaction.

TL;DR: In this article, the results obtained through the use of the well-known Smoluchowski formula are compared with those deduced from a more elaborated treatment (R. W. O'Brien and L. R. White, J. Faraday Trans. Chem. Soc. 2 74, 1607, 1978) of electrophoresis.

TL;DR: A thermodynamic analysis demonstrated that the observed stability of the suspensions in liquids with epsilon(r) < 5 is well correlated with the very low lyophobic attraction between the particles, and can be surmounted by thermal agitation, since the van der Waals attraction is negligible.