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Binding effects in multivalent Gibbs-Donnan equilibrium

Castelnovo, M and Evilevitch, Alex LU orcid (2006) In Europhysics Letters 73(4). p.635-641
Abstract
The classical Gibbs-Donnan equilibrium describes excess osmotic pressure associated with confined colloidal charges embedded in an electrolyte solution. In this work, we extend this approach to describe the influence of multivalent ion binding on the equilibrium force acting on a charged rod translocating between two compartments, thereby mimicking ionic effects on force balance during in vitro DNA ejection from bacteriophage. The subtle interplay between Gibbs-Donnan equilibrium and adsorption equilibrium leads to a non-monotonic variation of the ejection force as multivalent salt concentration is increased, in qualitative agreement with experimental observations.
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Europhysics Letters
volume
73
issue
4
pages
635 - 641
publisher
EDP Sciences
external identifiers
  • wos:000235777900023
  • scopus:32944466171
ISSN
0295-5075
DOI
10.1209/epl/i2005-10425-3
language
English
LU publication?
yes
id
cb2a8e1c-72a9-4cf6-a1ce-d4bf1a4eccdb (old id 416798)
date added to LUP
2016-04-01 11:55:24
date last changed
2020-06-13 02:25:52
@article{cb2a8e1c-72a9-4cf6-a1ce-d4bf1a4eccdb,
  abstract     = {The classical Gibbs-Donnan equilibrium describes excess osmotic pressure associated with confined colloidal charges embedded in an electrolyte solution. In this work, we extend this approach to describe the influence of multivalent ion binding on the equilibrium force acting on a charged rod translocating between two compartments, thereby mimicking ionic effects on force balance during in vitro DNA ejection from bacteriophage. The subtle interplay between Gibbs-Donnan equilibrium and adsorption equilibrium leads to a non-monotonic variation of the ejection force as multivalent salt concentration is increased, in qualitative agreement with experimental observations.},
  author       = {Castelnovo, M and Evilevitch, Alex},
  issn         = {0295-5075},
  language     = {eng},
  number       = {4},
  pages        = {635--641},
  publisher    = {EDP Sciences},
  series       = {Europhysics Letters},
  title        = {Binding effects in multivalent Gibbs-Donnan equilibrium},
  url          = {http://dx.doi.org/10.1209/epl/i2005-10425-3},
  doi          = {10.1209/epl/i2005-10425-3},
  volume       = {73},
  year         = {2006},
}