Dipolar Poisson-Boltzmann equation: Ions and dipoles close to charge interfaces

被引：216

作者：

Abrashkin, Ariel ^{[1
]}

Andelman, David

Orland, Henri

机构：

[1] Tel Aviv Univ, Sch Phys & Astron, Raymond & Beverly Sackler Fac Exact Sci, IL-69978 Tel Aviv, Israel

[2] CEA Saclay, Serv Phys Theor, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.99.077801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an extension to the Poisson-Boltzmann model where the dipolar features of solvent molecules are taken explicitly into account. The formulation is derived at mean-field level and can be extended to any order in a systematic expansion. It is applied to a two-plate system with oppositely charged surfaces. The ion distribution and profiles in the dipolar order parameter are calculated and can result in a large correction to the interplate pressure.

引用

页数：4

共 27 条

[1]

ABRASHKIN A, IN PRESS

[2]

Adelman D., 1995, HDB BIOL PHYS A&B, P603

[3] PDB_Hydro: incorporating dipolar solvents with variable density in the Poisson-Boltzmann treatment of macromolecule electrostatics [J].