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dc.contributor.authorRaymundo-Pereira, Paulo A.
dc.contributor.authorCampos, Anderson M.
dc.contributor.authorVicentini, Fernando C.
dc.contributor.authorJanegitz, Bruno C.
dc.contributor.authorMendonça, Camila D.
dc.contributor.authorFurini, Leonardo N. [UNESP]
dc.contributor.authorBoas, Naiza V.
dc.contributor.authorCalegaro, Marcelo L.
dc.contributor.authorConstantino, Carlos J.L. [UNESP]
dc.contributor.authorMachado, Sergio A.S.
dc.contributor.authorOliveira, Osvaldo N.
dc.date.accessioned2018-12-11T17:33:01Z
dc.date.available2018-12-11T17:33:01Z
dc.date.issued2017-11-01
dc.identifierhttp://dx.doi.org/10.1016/j.talanta.2017.06.058
dc.identifier.citationTalanta, v. 174, p. 652-659.
dc.identifier.issn0039-9140
dc.identifier.urihttp://hdl.handle.net/11449/178979
dc.description.abstractWe report the electrochemical detection of estriol using carbon black nanoballs (CNB) decorated with silver nanoparticles (AgNP) as electrode material. Homogeneous, porous films on glassy carbon electrodes (GCE) were obtained, with diameters of 20 – 25 nm for CNB and 5 – 6 nm for AgNP. CNB/AgNP electrodes had increased conductivity and electroactive area in comparison with bare GCE and GCE/CNB, according to cyclic voltammetry and electrochemical impedance spectroscopy. The oxidation potential peak was also down shifted by 93 mV, compared to the bare GC electrode. Differential pulse voltammetry data were obtained in 0.1 mol L–1 PBS (pH 7.0) to detect estriol without the purification step, in the linear range between 0.2 and 3.0 µmol L–1 with detection and quantification limits of 0.16 and 0.5 µmol L–1 (0.04 and 0.16 mg L–1), respectively. The sensor was used to detect estriol in a creek water sample with the same performance as in the official methodology based on high performance liquid chromatography.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCabot Corporation
dc.format.extent652-659
dc.language.isoeng
dc.relation.ispartofTalanta
dc.sourceScopus
dc.subjectCarbon black
dc.subjectEndocrine disruptor
dc.subjectEstriol
dc.subjectSensing
dc.subjectSensor platform
dc.subjectSilver nanoparticles
dc.titleSensitive detection of estriol hormone in creek water using a sensor platform based on carbon black and silver nanoparticlesen
dc.typeArtigo
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationSão Carlos Institute of Physics University of São Paulo
dc.description.affiliationInstitute of Chemistry of São Carlos University of São Paulo
dc.description.affiliationCenter of Natural Sciences Federal University of São Carlos
dc.description.affiliationDepartment of Natural Sciences Mathematics and Education Federal University of São Carlos
dc.description.affiliationSchool of Technology and Applied Sciences UNESP Univ Estadual Paulista
dc.description.affiliationUnespSchool of Technology and Applied Sciences UNESP Univ Estadual Paulista
dc.identifier.doi10.1016/j.talanta.2017.06.058
dc.rights.accessRightsAcesso aberto
dc.description.sponsorshipIdFAPESP: 2012/17689-9, 2013/14262-7, 2014/05197-0, 2015/19099-2, 2016/01919-6
dc.description.sponsorshipIdFAPESP: 2016/12759-0
dc.description.sponsorshipIdCabot Corporation: VXC72R CNB
dc.identifier.scopus2-s2.0-85021653861
dc.identifier.file2-s2.0-85021653861.pdf
dc.relation.ispartofsjr1,186
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