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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/40789
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dc.contributor.authorCavalcanti, I. T.-
dc.contributor.authorSilva, B. V. M.-
dc.contributor.authorPeres, N. G.-
dc.contributor.authorMoura, P.-
dc.contributor.authorSotomayor, Maria Del Pilar Taboada-
dc.contributor.authorGuedes, M. I. F.-
dc.contributor.authorDutra, R. F.-
dc.date.accessioned2014-05-20T15:31:44Z-
dc.date.accessioned2016-10-25T18:07:40Z-
dc.date.available2014-05-20T15:31:44Z-
dc.date.available2016-10-25T18:07:40Z-
dc.date.issued2012-03-15-
dc.identifierhttp://dx.doi.org/10.1016/j.talanta.2012.01.002-
dc.identifier.citationTalanta. Amsterdam: Elsevier B.V., v. 91, p. 41-46, 2012.-
dc.identifier.issn0039-9140-
dc.identifier.urihttp://hdl.handle.net/11449/40789-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/40789-
dc.description.abstractA chitosan-modified carbon fiber electrode (CFE) for dengue virus envelope protein (DENV) was developed. Antibodies against DENV were covalently immobilized on the chitosan (CHIT) matrix after activation with sodium periodate. Cyclic voltammetries and scanning electron microscopies analysis were performed to monitor steps involved in the CFE surface modification. Amperometric response of the competitive immunoassays was generated by hydrogen peroxide reaction with the peroxidase conjugated to DENV and 2'-azino-bis-(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) as mediator. The immunosensor showed a lower limit of detection for DENV (0.94 ng mL(-1)) than previously described and a linear range from 1.0 to 175 ng mL(-1), in concentration levels clinically relevant for dengue virus diagnosis. The intra- and inter-assay were respectively 5.8% and 3.6%. The unique and simple design of this immunoassay format provides an economical alternative for the manufacture of other sensitive sensors. (C) 2012 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.description.sponsorshipFundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco (FACEPE)-
dc.format.extent41-46-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectDengueen
dc.subjectCarbon fiberen
dc.subjectImmunosensoren
dc.subjectChitosanen
dc.titleA disposable chitosan-modified carbon fiber electrode for dengue virus envelope protein detectionen
dc.typeoutro-
dc.contributor.institutionUniversidade Federal de Pernambuco (UFPE)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniv Estadual Ceara-
dc.description.affiliationUniversidade Federal de Pernambuco (UFPE), Biomed Engn Lab, BR-50670901 Recife, PE, Brazil-
dc.description.affiliationUniv Estadual Paulista, Inst Quim, Araraquara, Brazil-
dc.description.affiliationUniv Estadual Ceara, Lab Bioquim Humana, Fortaleza, Ceara, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Quim, Araraquara, Brazil-
dc.description.sponsorshipIdCNPq: 483242/2010-1-
dc.description.sponsorshipIdCNPq: 576496/2008-1-
dc.identifier.doi10.1016/j.talanta.2012.01.002-
dc.identifier.wosWOS:000301811900006-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofTalanta-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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