Simulations of ionization equilibria in weak polyelectrolyte solutions and gels

J Landsgesell, L Nová, O Rud, F Uhlík, D Sean… - Soft Matter, 2019 - pubs.rsc.org
This article recapitulates the state of the art regarding simulations of ionization equilibria of
weak polyelectrolyte solutions and gels. We start out by reviewing the essential …

Grand-reaction method for simulations of ionization equilibria coupled to ion partitioning

J Landsgesell, P Hebbeker, O Rud, R Lunkad… - …, 2020 - ACS Publications
We developed a new method for coarse-grained simulations of acid–base equilibria in a
system coupled to a reservoir at a given pH and concentration of added salt, that we term the …

Local pH and effective p KA of weak polyelectrolytes–insights from computer simulations

L Nová, F Uhlík, P Košovan - Physical Chemistry Chemical Physics, 2017 - pubs.rsc.org
In this work we study the titration behavior of weak polyelectrolytes by computer simulations.
We analyze the local pH near the chains at various conditions and provide molecular-level …

[HTML][HTML] Unusual aspects of charge regulation in flexible weak polyelectrolytes

PM Blanco, CF Narambuena, S Madurga, F Mas… - Polymers, 2023 - mdpi.com
This article reviews the state of the art of the studies on charge regulation (CR) effects in
flexible weak polyelectrolytes (FWPE). The characteristic of FWPE is the strong coupling of …

[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 …

Adsorption of weak polyelectrolytes on charged nanoparticles. Impact of salt valency, pH, and nanoparticle charge density. Monte Carlo simulations

F Carnal, S Stoll - The Journal of Physical Chemistry B, 2011 - ACS Publications
Complex formation between a weak flexible polyelectrolyte chain and one positively
charged nanoparticle in presence of explicit counterions and salt particles is investigated …

Monte Carlo simulations of weak polyelectrolyte microgels: pH-dependence of conformation and ionization

C Hofzumahaus, P Hebbeker, S Schneider - Soft Matter, 2018 - pubs.rsc.org
In this study, we investigated the effect of pH on single weak acidic polyelectrolyte microgels
under salt-free conditions with (i) varying microgel concentration,(ii) varying content of acidic …

Polyelectrolyte-nanoparticle mutual charge regulation and its influence on their complexation

M Stornes, PM Blanco, RS Dias - Colloids and Surfaces A: Physicochemical …, 2021 - Elsevier
The complexation between a charged nanoparticle and an oppositely charged linear
polyelectrolyte is studied using coarse-grained Semi-Grand Canonical Monte Carlo …

Polyelectrolyte hydrogels as draw agents for desalination of solutions with multivalent ions

OV Rud, AD Kazakov, L Nova, F Uhlik - Macromolecules, 2022 - ACS Publications
We model a process of seawater desalination that employs compression of a weak
polyelectrolyte hydrogel as the drawing force for ion transfer. We model seawater as an …

Computer simulations of thermo-sensitive microgels: Quantitative comparison with experimental swelling data

M Quesada-Pérez, J Ramos, J Forcada… - The Journal of …, 2012 - pubs.aip.org
In this work, a quantitative comparison between experimental swelling data of thermo-
sensitive microgels and computer simulation results obtained from a coarse-grained model …