Interaction modes between asymmetrically and oppositely charged rods

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Interaction modes between asymmetrically and oppositely charged rods. / Antila, Hanne S.; Van Tassel, Paul R.; Sammalkorpi, Maria.

In: Physical Review E, Vol. 93, No. 2, 022602, 2016.

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Antila, Hanne S. ; Van Tassel, Paul R. ; Sammalkorpi, Maria. / Interaction modes between asymmetrically and oppositely charged rods. In: Physical Review E. 2016 ; Vol. 93, No. 2.

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@article{012a9e2b41934ba786896573ccac866c,
title = "Interaction modes between asymmetrically and oppositely charged rods",
abstract = "The interaction of oppositely and asymmetrically charged rods in salt - a simple model of (bio)macromolecular assembly - is observed via simulation to exhibit two free energy minima, separated by a repulsive barrier. In contrast to similar minima in the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, the governing mechanism includes electrostatic attraction at large separation, osmotic repulsion at close range, and depletion attraction near contact. A model accounting for ion condensation and excluded volume is shown to be superior to a mean-field treatment in predicting the effect of charge asymmetry on the free-energy profile.",
keywords = "colloidal particles, electrostatic interactions, rodlike polyelectrolytes",
author = "Antila, {Hanne S.} and {Van Tassel}, {Paul R.} and Maria Sammalkorpi",
year = "2016",
doi = "10.1103/PhysRevE.93.022602",
language = "English",
volume = "93",
journal = "Physical Review E",
issn = "2470-0045",
publisher = "American Physical Society",
number = "2",

}

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TY - JOUR

T1 - Interaction modes between asymmetrically and oppositely charged rods

AU - Antila, Hanne S.

AU - Van Tassel, Paul R.

AU - Sammalkorpi, Maria

PY - 2016

Y1 - 2016

N2 - The interaction of oppositely and asymmetrically charged rods in salt - a simple model of (bio)macromolecular assembly - is observed via simulation to exhibit two free energy minima, separated by a repulsive barrier. In contrast to similar minima in the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, the governing mechanism includes electrostatic attraction at large separation, osmotic repulsion at close range, and depletion attraction near contact. A model accounting for ion condensation and excluded volume is shown to be superior to a mean-field treatment in predicting the effect of charge asymmetry on the free-energy profile.

AB - The interaction of oppositely and asymmetrically charged rods in salt - a simple model of (bio)macromolecular assembly - is observed via simulation to exhibit two free energy minima, separated by a repulsive barrier. In contrast to similar minima in the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, the governing mechanism includes electrostatic attraction at large separation, osmotic repulsion at close range, and depletion attraction near contact. A model accounting for ion condensation and excluded volume is shown to be superior to a mean-field treatment in predicting the effect of charge asymmetry on the free-energy profile.

KW - colloidal particles

KW - electrostatic interactions

KW - rodlike polyelectrolytes

UR - http://www.scopus.com/inward/record.url?scp=84959441275&partnerID=8YFLogxK

U2 - 10.1103/PhysRevE.93.022602

DO - 10.1103/PhysRevE.93.022602

M3 - Article

VL - 93

JO - Physical Review E

JF - Physical Review E

SN - 2470-0045

IS - 2

M1 - 022602

ER -

ID: 1476791