Sensitive electrochemical biosensor for bisphenol A based on laccase immobilized on polypyrrole-3-carboxylic/Sb2O5/reduced graphene oxide hybrid nanomaterial
Tipo
Artigo
Data de publicação
2023
Periódico
Electroanalysis
Citações (Scopus)
1
Autores
Cincotto F.H.
Oliveira Fernandes J.
Travassos A.C.O.
Tiba D.Y.
Medeiros A.M.A.B.
Santelli R.E.
Sanchez A.
Villalonga R.
Pingaron J.M.
Canevari T.C.
Oliveira Fernandes J.
Travassos A.C.O.
Tiba D.Y.
Medeiros A.M.A.B.
Santelli R.E.
Sanchez A.
Villalonga R.
Pingaron J.M.
Canevari T.C.
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Resumo
© 2023 Wiley-VCH GmbH.An electrochemical biosensor for the bisphenol A determination was constructed onto a glassy carbon electrode modified with a hybrid nanostructure based on polypyrrole-3-carboxylic acid/Sb2O5/reduced graphene oxide and laccase enzyme. The hybrid nanostructure was characterized by X-ray photoelectron spectroscopy (XPS), HR-TEM, SEM microscopy, and electrochemical techniques. The biosensor displayed excellent response for bisphenol A determinations by differential pulse voltammetry, showing a theoretical detection limit of 9.9 nmol L−1 in the linear range of 0.1–1.0 μmol L−1. The biosensor demonstrated excellent selectivity in the determinations of bisphenol A in tap water without significant interference from other species, such as 17β-estradiol, Estriol, Progesterone, Catechol, Hydroquinone, Ascorbic acid, and Dopamine. The biosensor also has presented an excellent performance in bisphenol A determinations in water, with recovery tax ranging from 99.6 to 101 %. Therefore, it can be used satisfactorily to detect bisphenol A in real samples.
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Assuntos Scopus
Antimony nanoparticle , Bisphenol A , Bisphenol electrochemical biosensor , Bisphenols , Bisphenols-A , Electrochemical biosensor , Hybrid nanomaterials , Hybrid nanostructures , Laccase enzymes , Reduced graphene oxides