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相关论文: Kinetics of macroion coagulation induced by multiv…

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We report molecular dynamics simulation of the (overall neutral) system consisting of an immobile macroion surrounded by the electrolyte of multivalent counterions and monovalent coions. As expected theoretically, counterions adsorb on the…

软凝聚态物质 · 物理学 2009-11-07 Motohiko Tanaka , Alexander Grosberg

Screening of a strongly charged macroion by multivalent counterions is considered. It is shown that counterions form a strongly correlated liquid at the surface of the macroion. Cohesive energy of this liquid leads to additional attraction…

软凝聚态物质 · 物理学 2009-10-31 B. I. Shklovskii

We review works on screening of a macroion, such as colloidal particle or double helix DNA, by multivalent counterions. Multivalent metal ions, charged micelles, short or long polyelectrolytes can play the role of multivalent counterions.…

软凝聚态物质 · 物理学 2007-05-23 T. T. Nguyen , A. Yu. Grosberg , B. I. Shklovskii

It is known that a large, charged body immersed in a solution of multivalent counterions may undergo charge inversion as the counterions adsorb to its surface. We use the theory of charge inversion to examine the case of a deformable,…

软凝聚态物质 · 物理学 2009-09-29 Brian Skinner , B. I. Shklovskii

Adsorption of multivalent counterions on the charged surface of a macroion is known to lead to inversion of the macroion charge due to the strong lateral correlations of counterions. We consider a nontrivial role of the excluded volume of…

软凝聚态物质 · 物理学 2009-11-07 Toan T. Nguyen , Boris I. Shklovskii

Strong coupling phenomena, such as the like charged macroions attraction, opposite charged macroions repulsion, charge renormalization or charge inversion, are known to be mediated by multivalent counterions. Most theories treat the…

软凝聚态物质 · 物理学 2016-02-03 Sandipan Dutta , Y. S. Jho

Colloidal suspensions and polyelectrolyte solutions containing multivalent counterions can exhibit some very counter-intuitive behavior usually associated with the low temperature physics. There are two particularly striking phenomena…

软凝聚态物质 · 物理学 2009-11-07 Yan Levin , Jeferson J. Arenzon

Screening of a strongly charged macroion by oppositely charged colloidal particles, micelles, or short polyelectrolytes is considered. Due to strong lateral repulsion such multivalent counterions form a strongly correlated liquid at the…

软凝聚态物质 · 物理学 2009-10-31 T. T. Nguyen , A. Yu. Grosberg , B. I. Shklovskii

We study a two-dimensional model for a long cylindrical stiff charged macroion immersed in a charge-asymmetric electrolyte with charge ratio +2/-1. The model is integrable and it allows an exact analytical determination of the effective…

软凝聚态物质 · 物理学 2007-05-23 Gabriel Tellez

We present a personal view on the current state of statistical mechanics of Coulomb fluids with special emphasis on the interactions between macromolecular surfaces, concentrating on the weak and the strong coupling limits. Both are…

软凝聚态物质 · 物理学 2015-06-16 Ali Naji , Matej Kanduč , Jan Forsman , Rudolf Podgornik

Model macroion solutions next to a charged wall show interface \textit{true overcharging}, charge reversal and inversion, and layering. Macroion layering is present, even if the wall or the macroparticle are \textit{uncharged} or if the…

化学物理 · 物理学 2007-05-23 Marcelo Lozada-Cassou , Felipe Jimenez-Angeles

Screening of a macroion by multivalent counterions is considered. It is shown that ions form strongly correlated liquid at the macroion surface. Cohesive energy of this liquid leads to strong additional attraction of counterions to the…

软凝聚态物质 · 物理学 2009-10-31 V. I. Perel , B. I. Shklovskii

Like-charged macroions attract each other as a result of strong electrostatic correlations in the presence of multivalent counterions or at low temperatures. We investigate the effective electrostatic interaction between i) two like-charged…

软凝聚态物质 · 物理学 2007-05-23 Ali Naji , Roland R. Netz

Recent Monte Carlo simulations (A. G. Moreira and R. R. Netz: Eur. Phys. J. E {\bf 8} (2002) 33) in the strong Coulomb coupling regime suggest strange counterion electrostatics unlike the Poisson-Boltzmann picture: when…

软凝聚态物质 · 物理学 2020-01-07 Hiroshi Frusawa

We explore structural correlations of strongly asymmetric mixtures of binary charged colloids within the primitive model of electrolytes considering large charge and size ratios of 10 and higher. Using computer simulations with explicit…

软凝聚态物质 · 物理学 2022-07-13 Elshad Allahyarov , Hartmut Löwen , Alan Denton

Screening of a macroion such as a charged solid particle, a charged membrane, double helix DNA or actin by multivalent counterions is considered. Small colloidal particles, charged micelles, short or long polyelectrolytes can play the role…

软凝聚态物质 · 物理学 2009-10-31 T. T. Nguyen , A. Yu. Grosberg , B. I. Shklovskii

We investigate spherical macroions in the strong Coulomb coupling regime within the primitive model in salt-free environment. Molecular dynamics (MD) simulations are used to elucidate the effect of $discrete$ macroion charge distribution on…

软凝聚态物质 · 物理学 2009-11-07 Rene Messina , Christian Holm , Kurt Kremer

A simple model is presented for the appearance of attraction between two like charged polyions inside a polyelectrolyte solution. The polyions are modeled as rigid cylinders in a continuum dielectric solvent. The strong electrostatic…

软凝聚态物质 · 物理学 2009-10-31 Alexandre Diehl , Humberto A. Carmona , Yan Levin

By decomposing the Coulomb interaction into a long distance component appropriate for mean-field theory, and a nonmean-field short distance component, we compute the counterion density near a charged surface for all values of the counterion…

软凝聚态物质 · 物理学 2009-11-11 Christian D. Santangelo

We present an overview of our understanding of electrostatic interactions between charged macromolecular surfaces mediated by mobile counter- and coions. The dichotomy between the weak and the strong coupling regimes is described in detail…

软凝聚态物质 · 物理学 2016-12-21 Ali Naji , Matej Kanduc , Roland R. Netz , Rudolf Podgornik
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