Abstract
This study is focused on the molecular recognition mechanism of a methacrylate-based R(+)-atenolol molecularly imprinted polymer (MIP), employed as a chiral sensing interface in the construction of a novel electrochemical sensor. The MIP was electrogenerated as an ultrathin-film onto the surface of a carbon paste working electrode under potentiodynamic conditions in a non-aqueous media. Differential pulse voltammetry served as signal transduction method for the direct and indirect (by means of two redox probes, [Fe(CN)6]3−/4− and 1,1′-ferrocene dimethanol, respectively) detection of the underlying molecular recognition process. The rebinding of the template enantiomer led to changes in solute permeability of the MIP-layer, indicating the presence of a “gate effect” as part of the molecular recognition process.
Published Version
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