Ag nanoparticles capped by a nontoxic polymer: Electrochemical and spectroscopic characterization of a novel nanomaterial for glucose detection |
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Authors: | Maria Rachele Guascito Daniela ChirizziRosaria Anna Picca Elisabetta MazzottaCosimino Malitesta |
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Affiliation: | Laboratorio di Chimica Analitica, Dipartimento di Scienza dei Materiali, Università del Salento, Via per Monteroni - Palazzina M, 73100 Lecce, Italy |
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Abstract: | Modified electrodes with metal or metal oxides nanoparticles are particularly appealing to improve sensor performances and fabricate miniaturized devices, as required also in glucose detection. A Pt electrode modified by drop casting of a novel nanostructured film based on silver nanoparticles (Ag-NPs) capped in a commercial nontoxic polyvinyl alcohol (PVA) matrix is proposed here as a valid alternative to classical glucose (bio)sensors. The extensive electrochemical and spectroscopic characterization by X-ray Photoelectron Spectroscopy (XPS) of this advanced nanomaterial is presented to study its response to glucose and to investigate the chemical nature of deposited Ag. |
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Keywords: | Ag-NPs Glucose Nanostructured material Enzymeless sensor Amperometric detection XPS |
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