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相关论文: Polyelectrolyte Layer-by-Layer Assembly from Self-…

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We study mixtures of charged surfactants, which alone in solution form uni- and multilamellar vesicles, and oppositely charged polyelectrolytes (PEs). The phase behavior is investigated at fixed surfactant concentration as a function of the…

软凝聚态物质 · 物理学 2007-05-23 Laurence Ramos , Edith Vivares

We propose a detailed description of the structure of the layer formed by polyelectrolyte chains adsorbed onto an oppositely charged surface in the semi-dilute regime. We combine the mean-field Poisson-Boltzmann-Edwards theory and the…

软凝聚态物质 · 物理学 2019-02-20 Manoel Manghi , Miguel Aubouy

For a tailored functionalization of cellulose based papers, the interaction between paper fibers and functional additives have to be understood. Planar cellulose surfaces present a suitable model system for studying the binding of…

软凝聚态物质 · 物理学 2021-01-11 Cassia Lux , Thomas Tilger , Ramsia Geisler , Olaf Soltwedel , Regine von Klitzing

We investigate the thermodynamic properties of a polyelectrolyte solution in a presence of {\it multivalent} salts. The polyions are modeled as rigid cylinders with the charge distributed uniformly along the major axis. The solution,…

凝聚态物理 · 物理学 2015-06-25 Paulo S. Kuhn , Yan Levin , Marcia C. Barbosa

We consider the complexation of highly charged semiflexible polyelectrolytes with oppositely charged macroions. On the basis of scaling arguments we discuss how the resulting complexes depend on the persistence length of the…

软凝聚态物质 · 物理学 2009-11-07 H. Schiessel , R. F. Bruinsma , W. M. Gelbart

Engineered nanoparticles made from noble metals, rare-earth oxides or semiconductors are emerging as the central constituents of future nanotech developments. In this review, a survey of the complexing strategies between nanoparticles and…

材料科学 · 物理学 2011-08-25 J. -P. Chapel , J. -F. Berret

Motivated by observations of heterogeneous domain structure on the surface of cells, we consider a minimal model to describe the dynamics of phase separation on the surface of a spherical particle. Finite-size effects on the curved particle…

软凝聚态物质 · 物理学 2016-07-13 Matthias C. Bott , Joseph M. Brader

Understanding the electrodes' surface morphology influence on the ions' distribution is essential for designing the supercapacitors with enhanced energy density characteristics. We develop a model for the structure of electrolytes near the…

统计力学 · 物理学 2021-06-30 Timur Aslyamov , Konstantin Sinkov , Iskander Akhatov

The ordering of a multilayer consisting of DSPC bilayers on a silica sol substrate is studied within the model-independent approach to the reconstruction of profiles of the electron density from X-ray reflectometry data. It is found that…

Polyelectrolytes under confinement are crucial for energy storage and for understanding biomolecular functions. Using molecular dynamics simulations, we analyze a polyelectrolyte solution confined between two oppositely charged planar…

统计力学 · 物理学 2019-06-05 Debarshee Bagchi , Trung Dac Nguyen , Monica Olvera de la Cruz

The recent discovery of superconductivity and magnetism in trilayer rhombohedral graphene (RG) establishes an ideal, untwisted platform to study strong correlation electronic phenomena. However, the correlated effects in multilayer RG have…

This work presents a simply methodology for coating small unilamellar liposomes bearing different degrees of positive charge with polyelectrolyte multilayers using the sequential Layer-by-Layer (LbL) deposition method. The liposomes were…

We examine the interactions between polyelectrolytes (PEs) and uncharged substrates at conditions corresponding to a dielectric discontinuity between the aqueous solution and the substrate. To this end, we vary the relevant system…

软凝聚态物质 · 物理学 2024-12-03 Hossein Vahid , Alberto Scacchi , Maria Sammalkorpi , Tapio Ala-Nissila

Polyelectrolytes such as single and double stranded DNA and many synthetic polymers undergo two structural transitions upon increasing the concentration of multivalent salt or molecules. First, the expanded-stretched chains in low…

软凝聚态物质 · 物理学 2009-10-31 Francisco J. Solis , Monica Olvera de la Cruz

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

Over the past few decades, the prospect of energy generation from an oscillating piezoelectric patch has gained attention. A typical setup of this kind would be a piezoelectric patch mounted on a flexible plate that is exhibiting…

流体动力学 · 物理学 2021-04-14 Aditya Karthik S. , Supradeepan K. , P. S. Gurugubelli

We report dynamic and coagulation properties of a dispersion of polyelectrolyte multilayer microcapsules filled with solutions of a strong polyelectrolyte. The capsule self-diffusion coefficient in the vicinity of the wall is measured using…

软凝聚态物质 · 物理学 2007-05-23 Byoung-Suhk Kim , Vladimir Lobaskin , Olga I. Vinogradova

We demonstrate that an applied electric field causes piezoelectric distortion across single molecular monolayers of oligopeptides. We deposited self-assembled monolayers ~1.5 nm high onto smooth gold surfaces. These monolayers exhibit…

应用物理 · 物理学 2017-10-13 Xinfeng Quan , Jeffry D. Madura , Geoffrey R. Hutchison

Mean-field theory and scaling arguments are presented to model polyelectrolyte adsorption from semi-dilute solutions onto charged surfaces. Using numerical solutions of the mean-field equations, we show that adsorption exists only for…

软凝聚态物质 · 物理学 2009-11-10 A. Shafir , D. Andelman , R. R. Netz

The equilibrium domain structure and its evolution under an electric field in ferroelectric bilayers and graded multilayers are considered. The equilibrium bilayer is self-poled and contains a single-domain and a polydomain (with 180…

材料科学 · 物理学 2009-11-11 A. L. Roytburd , J. Slutsker