Author/Editor		Bohinc, Klemen; Iglič, Aleš; Slivnik, Tomaž; Kralj-Iglič, Veronika
Title		Planar, cylindrical and spherical electrical double layers in biological systems. The effect of counterion size
Type		članek
Source		Cell Mol Biol Lett
Vol. and No.		Letnik 7, št. 3
Publication year		2002
Volume		str. 839-43
Language		eng
Abstract		The effect of counterion size on the electric properties of the electrolyte solution in contact with charged planar, cylindrical and spherical surfaces is considered. The electrostatic interaction is considered by means of the mean electrostatic field while the finite size of particles constituting the electrolyte solution is considered by the excluded volume effect within the lattice statistics. Different sizes of the counterions are described by different values of the lattice constant. It is shown that the excluded volume effect considerable decreases the calculated number density of counterions near the charged surface. This effect is more pronounced in cylindrical geometry than in the spherical geometry and less pronounced than in the planar geometry.
Descriptors		LIPID BILAYERS PARTICLE SIZE