title: Forces between different latex particles in aqueous electrolyte solutions measured with the colloidal probe technique.
abstract: In this article, a compilation of results on direct force measurements between colloidal particles in monovalent salts carried out with the colloidal probe technique based on Atomic Force Microscopy was presented. The interaction forces between similar and dissimilar particles was studied and it was concluded that, in general, these force profiles may be satisfactorily quantified by the DLVO theory down to distances of few nanometers. However, in the specific case where the charge of one of the involved particle is close to neutral, it was found that the surface potential of this particle may change its sign depending on the sign of charge of the opposite particle. In this respect, the assumption that the surface potential of a particle is a property only related to the particle surface features and the bulk properties is called into question. Microsc. Res. Tech. 80:144-152, 2017. © 2016 Wiley Periodicals, Inc.
authors.affiliation: Biocolloid and Fluid Physics Group, Applied Physics Department, Faculty of Sciences, University of Granada, Campus de Fuentenueva s/n, Granada, 18071, Spain.
authors.forename: F Javier Montes
authors.initials: FJ
authors.lastname: Ruiz-Cabello
authors.affiliation: Department of Inorganic and Analytical Chemistry, University of Geneva, Sciences II, Quai Ernest-Ansermet 30, Geneva, 1205, Switzerland.
authors.forename: Mohsen
authors.initials: M
authors.lastname: Moazzami-Gudarzi
authors.affiliation: Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Science, Krakow, 30-239, Poland.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Elzbieciak-Wodka
authors.affiliation: Department of Inorganic and Analytical Chemistry, University of Geneva, Sciences II, Quai Ernest-Ansermet 30, Geneva, 1205, Switzerland.
authors.forename: Plinio
authors.initials: P
authors.lastname: Maroni
keywords: DLVO theory; atomic force microscopy; surface forces