Enhanced counterion localization induced by surface charge modulation

D. B. Lukatsky; S. A. Safran; A. W.C. Lau; P. Pincus

doi:10.1209/epl/i2002-00418-8

Enhanced counterion localization induced by surface charge modulation

D. B. Lukatsky, S. A. Safran, A. W.C. Lau, P. Pincus

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Abstract

Using both small-amplitude and singular-perturbation theories we predict theoretically that the presence of surface charge modulations gives rise to an enhancement of the counterion density near the surface above and beyond that of a uniform, charged surface. We confirm these predictions with Monte Carlo simulations. Our study focuses on the weak-to moderate-coupling regime which is complementary to a similar investigation performed by Moreira and Netz (Europhys. Lett., 57 (2002) 911) in the strong-coupling case.

Original language	English
Pages (from-to)	785-791
Number of pages	7
Journal	EPL
Volume	58
Issue number	5
DOIs	https://doi.org/10.1209/epl/i2002-00418-8
State	Published - 19 Aug 2002
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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abstract = "Using both small-amplitude and singular-perturbation theories we predict theoretically that the presence of surface charge modulations gives rise to an enhancement of the counterion density near the surface above and beyond that of a uniform, charged surface. We confirm these predictions with Monte Carlo simulations. Our study focuses on the weak-to moderate-coupling regime which is complementary to a similar investigation performed by Moreira and Netz (Europhys. Lett., 57 (2002) 911) in the strong-coupling case.",

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AU - Lukatsky, D. B.

AU - Safran, S. A.

AU - Lau, A. W.C.

AU - Pincus, P.

PY - 2002/8/19

Y1 - 2002/8/19

N2 - Using both small-amplitude and singular-perturbation theories we predict theoretically that the presence of surface charge modulations gives rise to an enhancement of the counterion density near the surface above and beyond that of a uniform, charged surface. We confirm these predictions with Monte Carlo simulations. Our study focuses on the weak-to moderate-coupling regime which is complementary to a similar investigation performed by Moreira and Netz (Europhys. Lett., 57 (2002) 911) in the strong-coupling case.

AB - Using both small-amplitude and singular-perturbation theories we predict theoretically that the presence of surface charge modulations gives rise to an enhancement of the counterion density near the surface above and beyond that of a uniform, charged surface. We confirm these predictions with Monte Carlo simulations. Our study focuses on the weak-to moderate-coupling regime which is complementary to a similar investigation performed by Moreira and Netz (Europhys. Lett., 57 (2002) 911) in the strong-coupling case.

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Enhanced counterion localization induced by surface charge modulation

Abstract

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