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dc.contributor.authorFerreira Garcia, Luane
dc.contributor.authorRibeiro Souza, Aparecido
dc.contributor.authorSanz Lobón, Germán
dc.contributor.authorTorres Pio dos Santos, Wallans
dc.contributor.authorFernandes Alecrim, Morgana
dc.contributor.authorFontes Santiago, Mariângela
dc.contributor.authorLuque, Rafael
dc.date.accessioned2017-11-07T09:05:24Z
dc.date.available2017-11-07T09:05:24Z
dc.date.issued2016
dc.identifier.urihttp://hdl.handle.net/10396/15325
dc.description.abstractThe development of sensors and biosensors based on copper enzymes and/or copper oxides for phenol sensing is disclosed in this work. The electrochemical properties were studied by cyclic and differential pulse voltammetry using standard solutions of potassium ferrocyanide, phosphate/acetate buffers and representative natural phenols in a wide pH range (3.0 to 9.0). Among the natural phenols herein investigated, the highest sensitivity was observed for rutin, a powerful antioxidant widespread in functional foods and ubiquitous in the plant kingdom. The calibration curve for rutin performed at optimum pH (7.0) was linear in a broad concentration range, 1 to 120 M (r = 0.99), showing detection limits of 0.4 M. The optimized biomimetic sensor was also applied in total phenol determination in natural samples, exhibiting higher stability and sensitivity as well as distinct selectivity for antioxidant compoundses_ES
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.rightshttps://creativecommons.org/licenses/by/4.0/es_ES
dc.sourceMolecules 21(8), 1060 (2016)es_ES
dc.subjectMetal oxideses_ES
dc.subjectModified electrodeses_ES
dc.subjectEnzyme-free biosensorses_ES
dc.subjectRutines_ES
dc.titleEfficient Enzyme-Free Biomimetic Sensors for Natural Phenol Detectiones_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttp://dx.doi.org/10.3390/molecules21081060es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


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