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 …

ESPResSo 4.0–an extensible software package for simulating soft matter systems

F Weik, R Weeber, K Szuttor, K Breitsprecher… - The European Physical …, 2019 - Springer
ESPResSo is an extensible simulation package for research on soft matter. This versatile
molecular dynamics program was originally developed for coarse-grained simulations of …

[HTML][HTML] Theoretical and computational insight into solvent and specific ion effects for polyelectrolytes: The importance of local molecular interactions

J Smiatek - Molecules, 2020 - mdpi.com
Polyelectrolytes in solution show a broad plethora of interesting effects. In this short review
article, we focus on recent theoretical and computational findings regarding specific ion and …

pH-induced changes in polypeptide conformation: Force-field comparison with experimental validation

P Batys, M Morga, P Bonarek… - The Journal of Physical …, 2020 - ACS Publications
Microsecond-long all-atom molecular dynamics (MD) simulations, circular dichroism, laser
Doppler velocimetry, and dynamic light-scattering techniques have been used to investigate …

Electrostatically cross-linked reversible gels—effects of pH and ionic strength

R Staňo, P Košovan, A Tagliabue, C Holm - Macromolecules, 2021 - ACS Publications
Mixing of oppositely charged macromolecules can, under certain conditions, lead to the
formation of electrostatically cross-linked coacervate gels. In this simulation study, we …

Modeling of weak polyelectrolyte hydrogels under compression–Implications for water desalination

OV Rud, J Landsgesell, C Holm, P Košovan - Desalination, 2021 - Elsevier
Hydrogels immersed in salty solutions induce partitioning of small ions that can be exploited
for water desalination. This partitioning also affects the H+ ions, leading to a decrease of the …

[HTML][HTML] Polyelectrolyte p K a from experiment and molecular dynamics simulation

MS Bodnarchuk, KEB Doncom, DB Wright, DM Heyes… - RSC …, 2017 - pubs.rsc.org
The pKa of a polyelectrolyte has been determined experimentally by potentiometric titration
and computed using Molecular Dynamics (MD) constant pH (CpH) methodology, which …

[HTML][HTML] Coupling of charge regulation and conformational equilibria in linear weak polyelectrolytes: Treatment of long-range interactions via effective short-ranged …

PM Blanco, S Madurga, F Mas, JL Garcés - Polymers, 2018 - mdpi.com
The classical Rotational Isomeric State (RIS) model, originally proposed by Flory, has been
used to rationalize a wide range of physicochemical properties of neutral polymers …

[HTML][HTML] Computer simulations of static and dynamical properties of weak polyelectrolyte nanogels in salty solutions

D Sean, J Landsgesell, C Holm - Gels, 2017 - mdpi.com
We investigate the chemical equilibria of weak polyelectrolyte nanogels with reaction
ensemble Monte Carlo simulations. With this method, the chemical identity of the nanogel …

A generalized grand-reaction method for modeling the exchange of weak (polyprotic) acids between a solution and a weak polyelectrolyte phase

D Beyer, C Holm - The Journal of Chemical Physics, 2023 - pubs.aip.org
We introduce a Monte-Carlo method that allows for the simulation of a polymeric phase
containing a weak polyelectrolyte, which is coupled to a reservoir at a fixed pH, salt …