title: Macroion solutions in the cell model studied by field theory and Monte Carlo simulations.
abstract: Aqueous solutions of charged spherical macroions with variable dielectric permittivity and their associated counterions are examined within the cell model using a field theory and Monte Carlo simulations. The field theory is based on separation of fields into short- and long-wavelength terms, which are subjected to different statistical-mechanical treatments. The simulations were performed by using a new, accurate, and fast algorithm for numerical evaluation of the electrostatic polarization interaction. The field theory provides counterion distributions outside a macroion in good agreement with the simulation results over the full range from weak to strong electrostatic coupling. A low-dielectric macroion leads to a displacement of the counterions away from the macroion.
authors.affiliation: Department of Chemical and Process Engineering, University of Strathclyde James Weir Building, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom. leo.lue@strath.ac.uk
authors.forename: Leo
authors.initials: L
authors.lastname: Lue
authors.forename: Per
authors.initials: P
authors.lastname: Linse
mesh_terms: D002477:Cells; D017097:Electric Impedance; D008954:Models, Biological; D009010:Monte Carlo Method; D012996:Solutions; D055672:Static Electricity
chemical_list: D012996:Solutions