Scaling in complex systems: analytical theory of charged pores
نویسندگان
چکیده
منابع مشابه
Scaling in Complex Systems: Analytical Theory of Charged Pores
In this paper we find an analytical solution of the equilibrium ion distribution for a toroidal model of a ionic channel, using the Perfect Screening Theorem (PST)[1]. The ions are charged hard spheres, and are treated using a variational Mean Spherical Approximation (VMSA) [2]. Understanding ion channels is still a very open problem, because of the many exquisite tuning details of real life ch...
متن کاملScaling in Complex Sytems: Analytical Theory of Charged Pores
In this paper we find an analytical solution of the equilibrium ion distribution for a toroidal model of a ionic channel, using the Perfect Screening Theorem (PST)[1]. The ions are charged hard spheres, and are treated using a variational Mean Spherical Approximation (VMSA) [2]. Understanding ion channels is still a very open problem, because of the many exquisite tuning details of real life ch...
متن کاملPolymer brushes in cylindrical pores: simulation versus scaling theory.
The structure of flexible polymers endgrafted in cylindrical pores of diameter D is studied as a function of chain length N and grafting density sigma, assuming good solvent conditions. A phenomenological scaling theory, describing the variation of the linear dimensions of the chains with sigma, is developed and tested by molecular dynamics simulations of a bead-spring model. Different regimes ...
متن کاملDensity functional theory of charged colloidal systems.
The phase behavior of charged colloidal systems has been studied recently by the density functional theory formalism (DFT) [R. van Roij, M. Dijkstra, and J. P. Hansen, Phys. Rev. E 59, 2010 (1999)]. A key feature of this approach is the appearance of a density and temperature-dependent effective Hamiltonian between the charged colloids. Under certain approximations, the effective Hamiltonian is...
متن کاملScaling theory of polymer solutions trapped in small pores : the -solvent case
We study theoretically the behavior of a single macromolecular chain dissolved in a Bso[vent and confined in a tube with a diameter D comparable to the natural size (Ro = N ' " U ) of the chain (N being the number of monomers of the chain). We find that for D e R the longitudinal dimension R I of the chain increases as RI 2 N a (a lD) , in contrast with the longitudinal behavior of an ideal cha...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Molecular Physics
سال: 2005
ISSN: 0026-8976,1362-3028
DOI: 10.1080/00268970500221941