Theory of charge regulation of colloidal particles in electrolyte solutions

A Bakhshandeh, D Frydel, Y Levin - Langmuir, 2022 - ACS Publications
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 …

[HTML][HTML] Accelerated simulation method for charge regulation effects

T Curk, J Yuan, E Luijten - The Journal of Chemical Physics, 2022 - pubs.aip.org
The net charge of solvated entities, ranging from polyelectrolytes and biomolecules to
charged nanoparticles and membranes, depends on the local dissociation equilibrium of …

Brownian dynamics simulations of hard rods in external fields and with contact interactions

AP Antonov, S Schweers, A Ryabov, P Maass - Physical Review E, 2022 - APS
We propose a simulation method for Brownian dynamics of hard rods in one dimension for
arbitrary continuous external force fields. It is an event-driven procedure based on the …

Electrostatic interactions between charge regulated spherical macroions

H Ruixuan, A Majee, J Dobnikar… - The European Physical …, 2023 - Springer
We study the interaction between two charge regulating spherical macroions with dielectric
interior and dissociable surface groups immersed in a monovalent electrolyte solution. The …

Reactive Monte Carlo simulations for charge regulation of colloidal particles

A Bakhshandeh, D Frydel, Y Levin - The Journal of Chemical Physics, 2022 - pubs.aip.org
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 …

Canonical titration simulations

A Bakhshandeh, Y Levin - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
We present a Monte Carlo approach for performing titration simulations in the canonical
ensemble. The standard constant pH (cpH) simulation methods are intrinsically grand …

Equilibrium conformations and surface charge regulation of spherical polymer brushes in stretched regimes

A Bakhshandeh, M Segala, T Escobar Colla - Macromolecules, 2021 - ACS Publications
In the present work, we study the equilibrium conformations of linear polyelectrolytes
tethered onto a spherical, oppositely charged core in equilibrium with an ionic reservoir of …

On the Validity of Constant pH Simulations

A Bakhshandeh, Y Levin - Journal of Chemical Theory and …, 2024 - ACS Publications
Constant pH (cpH) simulations are now a standard tool for investigating charge regulation in
coarse-grained models of polyelectrolytes and colloidal systems. Originally developed for …

Applicability of the linearized Poisson–Boltzmann theory to contact angle problems and application to the carbon dioxide–brine–solid systems

M Amadu, A Miadonye - Scientific reports, 2022 - nature.com
In colloidal science and bioelectrostatics, the linear Poisson Boltzmann equation (LPBE) has
been used extensively for the calculation of potential and surface charge density. Its …

Interaction between charge-regulated metal nanoparticles in an electrolyte solution

A Bakhshandeh, AP Dos Santos… - The Journal of Physical …, 2020 - ACS Publications
We present a theory which allows us to calculate the interaction potential between charge-
regulated metal nanoparticles inside an acid-electrolyte solution. The approach is based on …