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Counterion release and electrostatic adsorption

Phys. Rev. Lett., 84(21): 4862--4865, 2000.
Authors: P. Sens and J. F. Joanny
Tags: absorption, counterion polyelectrolyte release
Abstract: The effective charge of a rigid polyelectrolyte (PE) approaching an oppositely charged surface is studied. The eases of a weak (annealed) and strongly charged PE with condensed counterions (such as DNA) are discussed. In the most interesting case of the adsorption onto a substrate of low dielectric constant (such as a lipid membrane or a mica sheet) the condensed counterions are and always released as the PE approaches the substrate, because of the major importance of the image-charge effect. For the adsorption onto a surface with freely moving charges, the image-charge effect becomes less important and full release is often expected.
| BibTeX  
@article{sens00a,
title = {Counterion release and electrostatic adsorption},
author = {P. Sens and J. F. Joanny},
journal = {Phys. Rev. Lett.},
number = {21},
pages = {4862--4865},
volume = {84},
year = {2000},
abstract = {The effective charge of a rigid polyelectrolyte (PE) approaching an oppositely charged surface is studied. The eases of a weak (annealed) and strongly charged PE with condensed counterions (such as DNA) are discussed. In the most interesting case of the adsorption onto a substrate of low dielectric constant (such as a lipid membrane or a mica sheet) the condensed counterions are and always released as the PE approaches the substrate, because of the major importance of the image-charge effect. For the adsorption onto a surface with freely moving charges, the image-charge effect becomes less important and full release is often expected.},
keywords = {absorption, counterion polyelectrolyte release }
}