title: The effect of the presence of crown ether on ion transport across the lipid bilayer.
abstract: We studied the electric properties of phosphatidylcholine bilayers modified with crown ether (dibenzo[18] crown-6). The studies were carried out for various crown ether concentrations in forming solutions and various potassium ion concentrations in electrolyte solutions. The presence of crown ether in the membrane influences the membrane's impedance; there is a reduction in its resistivity, a decrease in its resistance of phase transfer and an increase in its capacity of phase transfer with an increase in crown ether concentration in the bilayer and in K(+) ion concentration in the electrolyte solution.
authors.affiliation: Institute of Chemistry, University of Białystok, Al. J. Piłsudskiego 11/4, 15-443 Białystok, Poland.
authors.forename: Monika
authors.initials: M
authors.lastname: Naumowicz
authors.forename: Aneta D
authors.initials: AD
authors.lastname: Petelska
authors.forename: Zbigniew A
authors.initials: ZA
authors.lastname: Figaszewski
mesh_terms: D043844:Crown Ethers / Q000494:pharmacology*; D017136:Ion Transport / Q000187:drug effects*; D008051:Lipid Bilayers / Q000378:metabolism*; D008564:Membrane Potentials / Q000187:drug effects; D010713:Phosphatidylcholines / Q000378:metabolism; D011188:Potassium / Q000378:metabolism
chemical_list: D043844:Crown Ethers; D008051:Lipid Bilayers; D010713:Phosphatidylcholines; D011188:Potassium