Interactions between Rigid Polyelectrolytes Mediated by Ordering and Orientation of Multivalent Nonspherical Ions in Salt Solutions

Vahid, Hossein; Scacchi, Alberto; Sammalkorpi, Maria; Ala-Nissilä, Tapio

doi:10.1103/physrevlett.130.158202

Cited by 3 publications

(1 citation statement)

References 81 publications

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“…7–9 These polyampholytes consist of long-ranged electrostatic interactions, hydrogen bonding, dipolar interactions, van der Waals interactions, excluded volume effects, and chain connectivity and are endowed with different length scales (Bjerrum length, Debye screening length). 10–12 The polyampholyte conformations due to solvent interactions are primarily dominated by hydrogen bonds (H-bonds), resulting in an intricate network that, in turn, results in the formation of the secondary structures. These polyampholytes (some are also proteins) play a crucial role in most biological processes of living organisms.…”

Section: Introductionmentioning

confidence: 99%

Elucidating the influence of electrostatic force on the re-arrangement of H-bonds of protein polymers in the presence of salts

Basu,

Das,

Majumdar

2024

Soft Matter

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Section: Introductionmentioning

confidence: 99%

Elucidating the influence of electrostatic force on the re-arrangement of H-bonds of protein polymers in the presence of salts

Basu,

Das,

Majumdar

2024

Soft Matter

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Unveiling the transition of tumbling and tank-treading dynamics of star-shaped polyelectrolytes in shear flow by modulating the solution’s dielectric properties

Peng,

Liu,

Wang

2024

The Journal of Chemical Physics

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The effects of the solution’s dielectric properties on the conformation and dynamics of star-shaped polyelectrolytes in shear flow are investigated using a hybrid simulation method coupling multi-particle collision dynamics and molecular dynamics. The simulation results showed that by modulating the dielectric properties of the solution, star-shaped polyelectrolytes showed a three-step dynamic behavior transition from tumbling to tank-treading to tumbling dynamics under shear flow. The analysis indicated that this distinct transition in dynamics could be attributed to the uneven distribution of counterions induced by shear on the chain, resulting in a change in the polyelectrolyte conformation and degree of segmental alignment in arms. These findings contribute to a comprehensive understanding of the non-equilibrium dynamics of star-shaped polyelectrolytes in shear flow and offer a viable approach for controlling the dynamic behavior of star-shaped polyelectrolytes by adjusting the dielectric properties of the solution.

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

Vahid,

Scacchi,

Sammalkorpi

et al. 2024

Phys. Rev. E

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Interactions between Rigid Polyelectrolytes Mediated by Ordering and Orientation of Multivalent Nonspherical Ions in Salt Solutions

Cited by 3 publications

References 81 publications

Elucidating the influence of electrostatic force on the re-arrangement of H-bonds of protein polymers in the presence of salts

Elucidating the influence of electrostatic force on the re-arrangement of H-bonds of protein polymers in the presence of salts

Unveiling the transition of tumbling and tank-treading dynamics of star-shaped polyelectrolytes in shear flow by modulating the solution’s dielectric properties

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

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