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    • WISSENSCHAFTLICHE ARBEITEN
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    • Dpto. Química Física y Química Inorgánica
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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/30577

    Título
    Subphthalocyanines as electron mediators in biosensors based on phenol oxidases
    Autor
    Rodríguez Méndez, María LuzAutoridad UVA Orcid
    González Antón, Rocío
    Osipova, Marina
    Tomilova, Larisa G.
    García Hernández, CeliaAutoridad UVA
    Dubinina, Tatiana V.
    García Cabezón, Ana CristinaAutoridad UVA Orcid
    Año del Documento
    2017
    Documento Fuente
    Electrochimica Acta vol. 255 p.544-550
    Zusammenfassung
    The electron mediator properties of three subphthalocyanines (SubPcs) [hexa-chloro boron subphthalocyanine (ClSubPc), tri-tert-butyl boron subphthalocyanine (t-BuSubPc) and hexa-phenoxy boron subphthalocyanine (PhOSubPc)] in Tyrosinase and Laccase biosensors (deposited on ITO glass) for the detection of catechol and hydroquinone were evidenced. A particularly remarkable performance was observed in the PhOSubPc-Tyr sensor, which takes account of the π-π interactions between subphthalocyanine rings and the active sites of the enzymes. Mediated electron transfer between redox enzymes and the ITO electrode improved the limits of detection by one order of magnitude, reaching 10−7 mol·L−1 values. Studies at increasing scan rates confirmed the improvement of the charge transfer rates caused by the presence of the SubPcs. A bioelectronic tongue formed by an array of the SubPc based biosensors has been able to discriminate red wines according to their Total Polyphenol Index.
    Revisión por pares
    SI
    DOI
    10.1016/j.electacta.2017.09.168
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/30577
    Derechos
    openAccess
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    • DEP63 - Artículos de revista [334]
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