title: A novel type of crown ether-containing metal ions optical sensors based on polymer-stabilized cholesteric liquid crystalline films.
abstract: For the first time, the films based on polymer-stabilized cholesteric composites containing crown ether fragments with the optical properties sensitive to the complexation with potassium and barium ions were obtained. The complexation with these ions leads to blue spectral shift of the selective light reflection of planar cholesteric texture of composite films. Peculiarities of spectral changes and kinetics of selective light reflection shift were studied. The proposed approach can be used for the creation of the effective and selective sensor materials for different ions or groups of ions.
authors.affiliation: Chemistry Department of Moscow State University, Lenin Hills 1/3, Moscow, 119991, Russia. bbrvsky@yahoo.com
authors.forename: Vladislav
authors.initials: V
authors.lastname: Stroganov
authors.forename: Alexander
authors.initials: A
authors.lastname: Ryabchun
authors.forename: Alexey
authors.initials: A
authors.lastname: Bobrovsky
authors.forename: Valery
authors.initials: V
authors.lastname: Shibaev
mesh_terms: D001464:Barium / Q000737:chemistry; D015374:Biosensing Techniques / Q000295:instrumentation*; D002784:Cholesterol / Q000737:chemistry*; D043844:Crown Ethers / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011188:Potassium / Q000737:chemistry
chemical_list: D043844:Crown Ethers; D011108:Polymers; D001464:Barium; D002784:Cholesterol; D011188:Potassium