Publication

Distribution of counterions and interaction between two similarly charged dielectric slabs: Roles of charge discreteness and dielectric inhomogeneity

Pezeshkian, W., Nikoofard, N., Norouzi, D., Mohammad-Rafiee, F. & Fazli, H., 28-Jun-2012, In : Physical Review E. 85, 6, 11 p., 061925.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Pezeshkian, W., Nikoofard, N., Norouzi, D., Mohammad-Rafiee, F., & Fazli, H. (2012). Distribution of counterions and interaction between two similarly charged dielectric slabs: Roles of charge discreteness and dielectric inhomogeneity. Physical Review E, 85(6), [061925]. https://doi.org/10.1103/PhysRevE.85.061925

Author

Pezeshkian, Weria ; Nikoofard, Narges ; Norouzi, Davood ; Mohammad-Rafiee, Farshid ; Fazli, Hossein. / Distribution of counterions and interaction between two similarly charged dielectric slabs : Roles of charge discreteness and dielectric inhomogeneity. In: Physical Review E. 2012 ; Vol. 85, No. 6.

Harvard

Pezeshkian, W, Nikoofard, N, Norouzi, D, Mohammad-Rafiee, F & Fazli, H 2012, 'Distribution of counterions and interaction between two similarly charged dielectric slabs: Roles of charge discreteness and dielectric inhomogeneity', Physical Review E, vol. 85, no. 6, 061925. https://doi.org/10.1103/PhysRevE.85.061925

Standard

Distribution of counterions and interaction between two similarly charged dielectric slabs : Roles of charge discreteness and dielectric inhomogeneity. / Pezeshkian, Weria; Nikoofard, Narges; Norouzi, Davood; Mohammad-Rafiee, Farshid; Fazli, Hossein.

In: Physical Review E, Vol. 85, No. 6, 061925, 28.06.2012.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Pezeshkian W, Nikoofard N, Norouzi D, Mohammad-Rafiee F, Fazli H. Distribution of counterions and interaction between two similarly charged dielectric slabs: Roles of charge discreteness and dielectric inhomogeneity. Physical Review E. 2012 Jun 28;85(6). 061925. https://doi.org/10.1103/PhysRevE.85.061925


BibTeX

@article{fded2f600cc54ea599b7fb51140e46a1,
title = "Distribution of counterions and interaction between two similarly charged dielectric slabs: Roles of charge discreteness and dielectric inhomogeneity",
abstract = "The distribution of counterions and the electrostatic interaction between two similarly charged dielectric slabs is studied in the strong coupling limit. Dielectric inhomogeneities and discreteness of charge on the slabs have been taken into account. It is found that the amount of dielectric constant difference between the slabs and the environment, and the discreteness of charge on the slabs have opposing effects on the equilibrium distribution of the counterions. At small interslab separations, increasing the amount of dielectric constant difference increases the tendency of the counterions toward the middle of the intersurface space between the slabs and the discreteness of charge pushes them to the surfaces of the slabs. In the limit of point charges, independent of the strength of dielectric inhomogeneity, counterions distribute near the surfaces of the slabs. The interaction between the slabs is attractive at low temperatures and its strength increases with the dielectric constant difference. At room temperature, the slabs may completely attract each other, reach to an equilibrium separation, or have two equilibrium separations with a barrier in between, depending on the system parameters.",
keywords = "ELECTROSTATIC INTERACTIONS, POLYELECTROLYTE BRUSHES, VOLTAGE SENSOR, DNA, MODULATION, ADSORPTION, SURFACES, RELEASE, ORIGIN",
author = "Weria Pezeshkian and Narges Nikoofard and Davood Norouzi and Farshid Mohammad-Rafiee and Hossein Fazli",
year = "2012",
month = jun,
day = "28",
doi = "10.1103/PhysRevE.85.061925",
language = "English",
volume = "85",
journal = "Physical Review E",
issn = "1539-3755",
publisher = "AMER PHYSICAL SOC",
number = "6",

}

RIS

TY - JOUR

T1 - Distribution of counterions and interaction between two similarly charged dielectric slabs

T2 - Roles of charge discreteness and dielectric inhomogeneity

AU - Pezeshkian, Weria

AU - Nikoofard, Narges

AU - Norouzi, Davood

AU - Mohammad-Rafiee, Farshid

AU - Fazli, Hossein

PY - 2012/6/28

Y1 - 2012/6/28

N2 - The distribution of counterions and the electrostatic interaction between two similarly charged dielectric slabs is studied in the strong coupling limit. Dielectric inhomogeneities and discreteness of charge on the slabs have been taken into account. It is found that the amount of dielectric constant difference between the slabs and the environment, and the discreteness of charge on the slabs have opposing effects on the equilibrium distribution of the counterions. At small interslab separations, increasing the amount of dielectric constant difference increases the tendency of the counterions toward the middle of the intersurface space between the slabs and the discreteness of charge pushes them to the surfaces of the slabs. In the limit of point charges, independent of the strength of dielectric inhomogeneity, counterions distribute near the surfaces of the slabs. The interaction between the slabs is attractive at low temperatures and its strength increases with the dielectric constant difference. At room temperature, the slabs may completely attract each other, reach to an equilibrium separation, or have two equilibrium separations with a barrier in between, depending on the system parameters.

AB - The distribution of counterions and the electrostatic interaction between two similarly charged dielectric slabs is studied in the strong coupling limit. Dielectric inhomogeneities and discreteness of charge on the slabs have been taken into account. It is found that the amount of dielectric constant difference between the slabs and the environment, and the discreteness of charge on the slabs have opposing effects on the equilibrium distribution of the counterions. At small interslab separations, increasing the amount of dielectric constant difference increases the tendency of the counterions toward the middle of the intersurface space between the slabs and the discreteness of charge pushes them to the surfaces of the slabs. In the limit of point charges, independent of the strength of dielectric inhomogeneity, counterions distribute near the surfaces of the slabs. The interaction between the slabs is attractive at low temperatures and its strength increases with the dielectric constant difference. At room temperature, the slabs may completely attract each other, reach to an equilibrium separation, or have two equilibrium separations with a barrier in between, depending on the system parameters.

KW - ELECTROSTATIC INTERACTIONS

KW - POLYELECTROLYTE BRUSHES

KW - VOLTAGE SENSOR

KW - DNA

KW - MODULATION

KW - ADSORPTION

KW - SURFACES

KW - RELEASE

KW - ORIGIN

U2 - 10.1103/PhysRevE.85.061925

DO - 10.1103/PhysRevE.85.061925

M3 - Article

VL - 85

JO - Physical Review E

JF - Physical Review E

SN - 1539-3755

IS - 6

M1 - 061925

ER -

ID: 119266286