期刊
JOURNAL OF CHEMICAL PHYSICS
卷 135, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3665450
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资金
- Swedish Research Council (VR) [239-2009-6794, 621-2007-5251]
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. (C) 2011 American Institute of Physics. [doi:10.1063/1.3665450]
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