Mean-field theory of active electrolytes: Dynamic adsorption and overscreening.

@article{Frydel2018MeanfieldTO,
  title={Mean-field theory of active electrolytes: Dynamic adsorption and overscreening.},
  author={Derek Frydel and R. Podgornik},
  journal={Physical review. E},
  year={2018},
  volume={97 5-1},
  pages={
          052609
        }
}
We investigate active electrolytes within the mean-field level of description. The focus is on how the double-layer structure of passive, thermalized charges is affected by active dynamics of constituting ions. One feature of active dynamics is that particles adhere to hard surfaces, regardless of chemical properties of a surface and specifically in complete absence of any chemisorption or physisorption. To carry out the mean-field analysis of the system that is out of equilibrium, we develop… Expand
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References

SHOWING 1-10 OF 106 REFERENCES
Counterion Adsorption Effects on the Swelling Pressure in Clays
The effects arising due to counterion adsorption in interacting planar electrical double layers is studied using modified Gouy-Chapman theory. The conditions used here model clay swelling experimentsExpand
Regulation of surface potential at amphoteric surfaces during particle–particle interaction
A model is presented whereby a system of two interacting electrical double layers can minimise its electrical free energy at all distances of separation. The surface charge on each particle isExpand
Electrostatic potential between surfaces bearing ionizable groups in ionic equilibrium with physiologic saline solution.
TLDR
The treatment given here offers wide flexibility in dealing with cell surfaces in the languages of the cell physiologist, biochemist and physical chemist. Expand
Conventional Hypernetted Chain Force Calculations for Charged Plates with Adsorbing Counterions
By including counterion adsorption in the form of a sticky potential, the distribution of ions about a charged plate can be solved using the hypernetted chain/mean spherical approximation from theExpand
Bridging like-charged macroions through long divalent rodlike ions.
TLDR
This work demonstrates that Poisson-Boltzmann theory is able to predict attractive interactions if the spatially extended structure (which reflects the presence of intramolecular correlations) of the mobile ions in the electrolyte is accounted for, and demonstrates this for the case of divalent, mobile ions. Expand
Field-theoretic description of charge regulation interaction
TLDR
The formulation opens up the possibility to investigate the Kirkwood-Shumaker interaction in more general contexts where their original derivation fails, and gives the Poisson-Boltzmann theory with the Ninham-Parsegian boundary condition. Expand
The double-layer structure of overscreened surfaces by smeared-out ions.
  • D. Frydel
  • Chemistry, Physics
  • The Journal of chemical physics
  • 2016
TLDR
The present work probes the link between the structure of a double-layer and the bulk properties of an electrolyte with special view to the role of the Kirkwood crossover and finds that initially oscillations may appear like a far-field occurrence, eventually they develop into a full fledged layering of a charge density. Expand
The interactions between charged colloids with rod-like counterions
We examine the force between two equally charged surfaces that is mediated by rod-like counterions of varying length and valency. The analysis is based on an extension of a previously developedExpand
Charge regulation in ionic solutions: thermal fluctuations and Kirkwood-Schumaker interactions.
  • N. Adžić, R. Podgornik
  • Physics, Medicine
  • Physical review. E, Statistical, nonlinear, and soft matter physics
  • 2015
TLDR
Strong attraction between like-charged macroions is found close to the point of zero charge, specifically due to asymmetric, anticorrelated charge fluctuations of the macroion charges. Expand
Screening properties of Gaussian electrolyte models, with application to dissipative particle dynamics.
TLDR
This work uses a combination of Monte Carlo simulations with the hyper-netted chain integral equation closure, and the random phase approximation, to establish the conditions under which a screening length is well defined and the extent to which it matches the expected Debye length. Expand
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2
3
4
5
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