Interaction between charged anisotropic macromolecules: Application to rod-like polyelectrolytes
نویسندگان
چکیده
منابع مشابه
Interaction between charged anisotropic macromolecules: application to rod-like polyelectrolytes.
In this paper we propose a framework allowing one to compute the effective interactions between two anisotropic macromolecules, thereby generalizing the Derjaguin, Landau, Verwey, and Overbeek theory [E. J. W. Verwey and J. T. G. Overbeek, Theory of the Stability of Lyophobic Colloids (Elsevier, Amsterdam, 1948)] to nonspherical finite size colloids. We show in particular that the effective int...
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We study the effective interaction between a planar array of uniformly negatively charged, stiff rods parallel to a negatively charged planar substrate in the absence of salt in a continuous, isotropic dielectric medium. Using Brownian dynamics simulations, we examine the general effects of counterion valence, rod spacing, macroion charge densities, and the rod size on the attractive rod-surfac...
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We present theoretical and numerical results on stii, linear polyelec-trolytes within the framework of the cell model. With the help of an innec-tion point criterium we discuss counterion condensation for systems with added salt. Molecular dynamics simulations of the cell model are used to show, under which circumstances the mean-eld Poisson-Boltzmann theory fails qualitatively. We present meas...
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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 interaction between the polyions and the counterions results in counterion condensation. If the two polyions are sufficiently close to each other their layers of c...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2004
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.1642617