Surface charges play a fundamental role in physics and chemistry, in particular in shaping
the catalytic properties of nanomaterials. However, tracking nanoscale surface charge …

Surface chemistry of mineral phases in aqueous environments generates the electrostatic
forces involved in particle-particle interactions. However, few models directly take into …

Nanoparticles in solution acquire charge through the dissociation or association of surface
groups. Thus, a proper description of their electrostatic interactions requires the use of …

We present a theory that enables us to (i) calculate the effective surface charge of colloidal
particles and (ii) efficiently obtain titration curves for different salt concentrations. The theory …

Reducing friction is of great interest, and an external potential applied to the friction pair can
regulate lubricity. Electrochemical atomic force microscopy (EC-AFM) is used to study the …

Colloidal particles are mostly charged in an aqueous solution because of the protonation or
deprotonation of ionizable groups on the surface. The surface charge density reflects a …

We study the charge regulation of colloidal particles inside aqueous electrolyte solutions. To
stabilize a colloidal suspension against precipitation, colloidal particles are synthesized with …

We discuss problems associated with the notion of pH in heterogeneous systems. For
homogeneous systems, standardization protocols lead to a well-defined quantity, which …

We use a reactive Monte Carlo simulation method and the primitive model of electrolyte to
study acid–base equilibrium that controls charge regulation in colloidal systems. The …

Over the past few decades, the experimental literature has consistently reported
observations of attraction between like-charged colloidal particles and macromolecules in …