Correlation length in concentrated electrolytes: Insights from all-atom molecular dynamics simulations

SW Coles, C Park, R Nikam, M Kanduc… - The Journal of …, 2020 - ACS Publications
We study the correlation length of the charge–charge pair correlations in concentrated
electrolyte solutions by means of all-atom, explicit-solvent molecular dynamics simulations …

Electrostatic correlations and temperature-dependent dielectric constant can model LCST in polyelectrolyte complex coacervation

AS Ylitalo, C Balzer, P Zhang, ZG Wang - Macromolecules, 2021 - ACS Publications
The ability of polyelectrolytes to condense into a liquidlike, polyelectrolyte-rich phase out of
a dilute supernatant phase through complex coacervation has led to fascinating …

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] 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 …

Charge regulation of polyelectrolyte gels: Swelling transition

B Zheng, Y Avni, D Andelman, R Podgornik - Macromolecules, 2023 - ACS Publications
We study the effects of charge-regulated acid/base equilibrium on the swelling of
polyelectrolyte gels by considering a combination of the Poisson–Boltzmann theory and a …

Impact of asymmetries in valences and diffusivities on the transport of a binary electrolyte in a charged cylindrical pore

F Henrique, PJ Zuk, A Gupta - Electrochimica Acta, 2022 - Elsevier
Ion transport in porous media is present in a wealth of technologies, eg, energy storage
devices such as batteries and supercapacitors, and environmental technologies such as …

Role of pKA in Charge Regulation and Conformation of Various Peptide Sequences

R Lunkad, A Murmiliuk, Z Tošner, M Štěpánek… - Polymers, 2021 - mdpi.com
Peptides containing amino acids with ionisable side chains represent a typical example of
weak ampholytes, that is, molecules with multiple titratable acid and base groups, which …

Quantifying charge state heterogeneity for proteins with multiple ionizable residues

MJ Fossat, AE Posey, RV Pappu - Biophysical Journal, 2021 - cell.com
Ionizable residues can release and take up protons and this has an influence on protein
structure and function. The extent of protonation is linked to the overall pH of the solution …

Statistical field theory of ion–molecular solutions

YA Budkov - Physical Chemistry Chemical Physics, 2020 - pubs.rsc.org
In this article, I summarize my theoretical developments in the statistical field theory of salt
solutions of zwitterionic and multipolar molecules. Based on the Hubbard–Stratonovich …

A new method for reactive constant pH simulations

Y Levin, A Bakhshandeh - The Journal of Chemical Physics, 2023 - pubs.aip.org
We present a simulation method that allows us to calculate the titration curves for systems
undergoing protonation/deprotonation reactions—such as charged colloidal suspensions …