Decoration of reduced graphene oxide with rhodium nanoparticles for the design of a sensitive electrochemical enzyme biosensor for 17β-estradiol

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dc.contributor.authorPovedano E.
dc.contributor.authorCincotto F.H.
dc.contributor.authorParrado C.
dc.contributor.authorDiez P.
dc.contributor.authorSanchez A.
dc.contributor.authorCanevari T.C.
dc.contributor.authorMachado S.A.S.
dc.contributor.authorPingarron J.M.
dc.contributor.authorVillalonga R.
dc.date.accessioned2024-03-13T00:49:46Z
dc.date.available2024-03-13T00:49:46Z
dc.date.issued2017
dc.description.abstract© 2016 Elsevier B.V.A novel nanocomposite material consisting of reduced graphene oxide/Rh nanoparticles was prepared by a one-pot reaction process. The strategy involved the simultaneous reduction of RhCl3 and graphene oxide with NaBH4 and the in situ deposition of the metal nanoparticles on the 2D carbon nanomaterial planar sheets. Glassy carbon electrode coated with this nanocomposite was employed as nanostructured support for the cross-linking of the enzyme laccase with glutaraldehyde to construct a voltammperometric biosensor for 17β-estradiol in the 0.9–11 pM range. The biosensor showed excellent analytical performance with high sensitivity of 25.7 A µM−1 cm−1, a very low detection limit of 0.54 pM and high selectivity. The biosensor was applied to the rapid and successful determination of the hormone in spiked synthetic and real human urine samples.
dc.description.firstpage343
dc.description.lastpage351
dc.description.volume89
dc.identifier.doi10.1016/j.bios.2016.07.018
dc.identifier.issn1873-4235
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35780
dc.relation.ispartofBiosensors and Bioelectronics
dc.rightsAcesso Restrito
dc.subject.otherlanguage17β-estradiol
dc.subject.otherlanguageBiosensor
dc.subject.otherlanguageGraphene oxide
dc.subject.otherlanguageNanocomposite material
dc.subject.otherlanguageRhodium nanoparticles
dc.titleDecoration of reduced graphene oxide with rhodium nanoparticles for the design of a sensitive electrochemical enzyme biosensor for 17β-estradiol
dc.typeArtigo
local.scopus.citations68
local.scopus.eid2-s2.0-84979519922
local.scopus.subjectAnalytical performance
local.scopus.subjectElectrochemical enzyme biosensors
local.scopus.subjectGlassy carbon electrodes
local.scopus.subjectGraphene oxides
local.scopus.subjectLow detection limit
local.scopus.subjectReduced graphene oxides
local.scopus.subjectRhodium nanoparticles
local.scopus.subjectSimultaneous reduction
local.scopus.subjectBiosensing Techniques
local.scopus.subjectElectrochemical Techniques
local.scopus.subjectEstradiol
local.scopus.subjectGraphite
local.scopus.subjectHumans
local.scopus.subjectLaccase
local.scopus.subjectMetal Nanoparticles
local.scopus.subjectModels, Molecular
local.scopus.subjectNanocomposites
local.scopus.subjectOxidation-Reduction
local.scopus.subjectOxides
local.scopus.subjectRhodium
local.scopus.subjectTrametes
local.scopus.subjectTransducers
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84979519922&origin=inward
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