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Abstract: The feasibility of using thiol chemistry to form molecularly imprinted polymer-coated gold electrodes to measure pyrene is reported. For the first approach, poly(2-mercaptobenzimidazole) (2-MBI) was electrochemically deposited on gold electrodes in the presence or absence of the template pyrene. For the second approach, the pyrene derivative N-(1-pyrenyl)maleimide was covalently bound to 1,3-propane thiol that had been previously self-assembled on a cleaned gold surface. Resorcinol was then electrochemically polymerized onto the electrode followed by electrochemical stripping of the thiolated pyrene from the polymer-coated electrode. For both electrode configurations, the binding of pyrene to the MIP-coated electrode was detected indirectly through pyrene-dependent access of a ferricyanide probe to the electrode surface as measured using square-wave voltammetry
Template and target information: pyrene, N-(1-pyrenyl)maleimide
Author keywords: Poly(resorcinol), Poly(2-mercaptobenzimidazole), molecularly imprinted polymer, Pyrene, electrochemical detection