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Updated: May 24, 2026

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
Published on: February 1, 2022
Non-covalently functionalized graphene for the potentiometric sensing of zinc ions
Ewa Jaworska1, Wiktor Lewandowski, Józef Mieczkowski
1Department of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw, Poland.
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.
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