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相关论文: Effective charge saturation in colloidal suspensio…

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We investigate the statistical mechanics of an inhomogeneous Coulomb fluid composed of charged particles with static polarizability. We derive the weak- and the strong-coupling approximations and evaluate the partition function in a planar…

软凝聚态物质 · 物理学 2013-04-22 Vincent Démery , David S. Dean , Rudolf Podgornik

In his Comment (cond-mat/0104060) to [Phys. Rev. E 60, 6530 (1999)], Mateescu shows that while the effective interactions remain repulsive when the specific size of the micro-ions is taken into account via a Modified Poisson-Boltzmann…

统计力学 · 物理学 2009-11-07 E. Trizac , J-L Raimbault

The experimentally observed swelling and collapse response of weakly charged polymers to the addition of specific salts displays quite convoluted behavior that is not easy to categorize. Here we use a minimalistic implicit solvent /…

化学物理 · 物理学 2018-08-13 Richard Chudoba , Jan Heyda , Joachim Dzubiella

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

The contact value of the charge profile for nonsymmetrical electrolytes is presented as the sum of three contributions. One of them is the normal component of the Maxwell electrostatic stress tensor. The second one is the surface…

统计力学 · 物理学 2009-11-13 M. Holovko , D. di Caprio

Within the framework of a functional integral formalism incorporating ionic charge and hard-core (HC) interactions on an equal footing, we formulate a unified theory of equilibrium thermodynamics and ion association in charged solutions.…

软凝聚态物质 · 物理学 2026-02-02 Sahin Buyukdagli

The electrostatic double layer force is key to determining the stability and self-assembly of charged colloids and many other soft matter systems. Fully understanding the attractive force between two like-charged surfaces remains a great…

软凝聚态物质 · 物理学 2024-02-27 Nikhil R. Agrawal , Ravtej Kaur , Carlo Carraro , Rui Wang

The "polymer reference interaction site model" (PRISM) integral equation formalism is used to determine the pair structure of binary colloidal dispersions involving large and small polyions of opposite charge. Two examples of such…

统计力学 · 物理学 2009-11-07 L. Harnau , J. -P. Hansen

We numerically simulate collisions of charged shockwaves in Einstein-Maxwell theory in anti-de Sitter space as a toy model of heavy ion collisions with non-zero baryon charge. The stress tensor and the baryon current become well described…

高能物理 - 理论 · 物理学 2017-07-05 Jorge Casalderrey-Solana , David Mateos , Wilke van der Schee , Miquel Triana

We study the interaction potential between two polyions inside a colloidal suspension. It is shown that at large separation the interaction potential is purely repulsive, with the induced attractive interactions being doubly screened. For…

软凝聚态物质 · 物理学 2015-06-25 Yan Levin

We study the electrophoretic mobility of spherical particles and the electrical conductivity in salt-free concentrated suspensions including finite ion size effects. An ideal salt-free suspension is composed of just charged colloidal…

软凝聚态物质 · 物理学 2017-09-13 Rafael Roa , Félix Carrique , Emilio Ruiz-Reina

We have performed molecular dynamics simulations to study the effect of an external electric field on a macroion in the solution of multivalent Z:1 salt. To obtain plausible hydrodynamics of the medium, we explicitly make the simulation of…

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

The equilibrium phase behavior of a binary mixture of charged colloids and neutral, non-adsorbing polymers is studied within free-volume theory. A model mixture of charged hard-sphere macroions and ideal, coarse-grained, effective-sphere…

软凝聚态物质 · 物理学 2009-11-11 Alan R. Denton , Matthias Schmidt

The electrostatic interaction between colloidal particles trapped at the interface between two immiscible electrolyte solutions is studied in the limit of small inter-particle distances. Within an appropriate model exact analytic…

软凝聚态物质 · 物理学 2014-05-07 Arghya Majee , Markus Bier , S. Dietrich

We investigate the complexation of a highly charged sphere with a long flexible polyelectrolyte, \textit{both negatively charged} in salt free environment. Electroneutrality is insured by the presence of divalent counterions. Using…

软凝聚态物质 · 物理学 2007-05-23 Rene Messina , Christian Holm , Kurt Kremer

The effective Coulomb interaction between globular proteins is calculated as a function of monovalent salt concentration $c_s$, by explicit Molecular Dynamics simulations of pairs of model proteins in the presence of microscopic co and…

软凝聚态物质 · 物理学 2016-08-16 E. Allahyarov , H. Löwen , A. A. Louis , J. P. Hansen

Using integral equation theory of liquids to a binary mixed fluid lipid membrane, we study the membrane-mediated interactions between the macroions and the redistribution of neutral and charged lipids due to binding macroions. We find that…

软凝聚态物质 · 物理学 2015-06-25 Xia-qing Shi , Yu-qiang Ma

We study suspensions of hydrophobic charged colloidal spheres dispersed in a demixed oil-water mixture by means of a modified Poisson-Boltzmann theory, taking into account image charge effects and partitioning of the monovalent ions. We…

软凝聚态物质 · 物理学 2016-08-14 Jos Zwanikken , René van Roij

Computer simulations are used to investigate the response of a charged colloid and its surrounding microion cloud to an external electric field. Both static fields (DC) and alternating fields (AC) are considered. A mesoscopic simulation…

软凝聚态物质 · 物理学 2013-07-19 Jiajia Zhou , Roman Schmitz , Burkard Duenweg , Friederike Schmid

In this paper, we formulate a field-theoretical model of dilute salt solutions of electrically neutral spherical colloid particles. Each colloid particle consists of a 'central' charge that is situated at the center and compensating…

软凝聚态物质 · 物理学 2020-01-08 Yu. A. Budkov
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