title: [Evaluation of the thickness of lipid bilayers of biological membranes by measurement of specific capacity].
abstract: The estimate of the thickness of the hydrophobic part of biological membranes by means of its formula for plane capacitor leads to a necessity of very high values of protein dielectric permeability. The current estimate can be performed if the membrane possesses a wavy cross-section. Due to the existence of integral proteins which occupy about 1/3 of the bilayer surface and have dielectric permeability epsilon = 6 divided by 8 and also due to some peculiarities of intermembrane electric field the thickness of hydrophobic bilayer region can be estimated from membrane specific capacity as 3 divided by 3.5 nm, this value coincides with X-ray data.
mesh_terms: D004553:Electric Conductivity; D008051:Lipid Bilayers; D008563:Membrane Lipids; D008565:Membrane Proteins; D008954:Models, Biological
chemical_list: D008051:Lipid Bilayers; D008563:Membrane Lipids; D008565:Membrane Proteins
vernacular_title: Otsenka tolshchiny lipidnogo bisloia biologicheskikh membran po izmereniiam udel'noĭ emkosti.