Interactions between rigid polyelectrolytes mediated by ordering and orientation of multivalent nonspherical ions in salt solutions

H Vahid, A Scacchi, M Sammalkorpi, T Ala-Nissila - Physical Review Letters, 2023 - APS
Multivalent ions in solutions with polyelectrolytes (PEs) induce electrostatic correlations that
can drastically change ion distributions around the PEs and their mutual interactions. Using …

Nonmonotonic electrophoretic mobility of rodlike polyelectrolytes by multivalent coions in added salt

H Vahid, A Scacchi, M Sammalkorpi, T Ala-Nissila - Physical Review E, 2024 - APS
It is well established that when multivalent counterions or salts are added to a solution of
highly charged polyelectrolytes (PEs), correlation effects can cause charge inversion of the …

Effects of monovalent and divalent cations on the rheology of entangled DNA

J Harnett, S Weir, D Michieletto - Soft Matter, 2024 - pubs.rsc.org
In this paper we investigate the effects of varying cation valency and concentration on the
rheology of entangled λDNA solutions. We show that monovalent cations moderately …

Adsorption of polyelectrolytes in the presence of varying dielectric discontinuity between solution and substrate

H Vahid, A Scacchi, M Sammalkorpi… - arxiv preprint arxiv …, 2024 - arxiv.org
We examine the interactions between polyelectrolytes (PEs) and uncharged substrates at
conditions corresponding to a dielectric discontinuity between the aqueous solution and the …

Block Ratio Optimized Cationic Polyacrylamides for Enhanced Nitrate Rejection Under Applied Potential

H Vahid, A Hashemi, M Khavani, A Sharma… - Available at SSRN …, 2025 - papers.ssrn.com
The integration of charged polymers and reverse osmosis (RO) membranes presents a
promising approach to capture undesired ions and enhance water purification efficiency. In …