title: Non-covalently functionalized graphene for the potentiometric sensing of zinc ions.
abstract: The possibility of the application of non-covalently functionalized graphene as a sensing membrane for the potentiometric determination of zinc ions was examined. A graphene carboxylic derivative was functionalized with 1-(2-pyridylazo)-2-naphthol, the Zn(2+) ions complexing ligand, simply by adsorption of ligand molecules due to π-π interactions. This approach has resulted in a potentiometric sensor characterized with significant selectivity for Zn(2+) ions present in solution.
authors.affiliation: Department of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw, Poland.
authors.forename: Ewa
authors.initials: E
authors.lastname: Jaworska
authors.forename: Wiktor
authors.initials: W
authors.lastname: Lewandowski
authors.forename: Józef
authors.initials: J
authors.lastname: Mieczkowski
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Maksymiuk
authors.forename: Agata
authors.initials: A
authors.lastname: Michalska