Magnetite Nanoparticles Bonded Carbon Quantum Dots Magnetically Confined onto Screen Printed Carbon Electrodes and their Performance as Electrochemical Sensor for NADH

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dc.contributor.authorCanevari T.C.
dc.contributor.authorCincotto F.H.
dc.contributor.authorGomes D.
dc.contributor.authorLanders R.
dc.contributor.authorToma H.E.
dc.date.accessioned2024-03-13T00:48:56Z
dc.date.available2024-03-13T00:48:56Z
dc.date.issued2017
dc.description.abstract© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, WeinheimHybrid magnetite/carbon quantum dots (MagNP/C-dots) were prepared and their characterization performed by high resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Because of their suitable magnetization and electrochemical properties, they were used as versatile electrode modifiers after magnetically confining onto screen printed carbon electrodes (SPE), with the aid of a miniature external magnet. The reported strategy introduces a convenient procedure for assembling modified electrodes, since the nanoparticles can be easily released by removing the magnet. The non-enzymatic magnetic biosensor showed excellent performance in the determination of NADH at the concentration range 2×10−7 to 5×10−6 mol L−1, exhibiting a sensitivity of 0.15 μmol L−1 and detection limit of 20 nmol L−1. The MagNP/C-dots/SPE sensor was also successfully applied for the determination of NADH in serum samples. The interference of typical biological molecules has also been investigated.
dc.description.firstpage1968
dc.description.issuenumber8
dc.description.lastpage1975
dc.description.volume29
dc.identifier.doi10.1002/elan.201700167
dc.identifier.issn1521-4109
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35734
dc.relation.ispartofElectroanalysis
dc.rightsAcesso Restrito
dc.subject.otherlanguageBioelectrochemistry
dc.subject.otherlanguageMagnetic nanoparticles
dc.subject.otherlanguageNADH
dc.subject.otherlanguageNanoelectrochemistry
dc.subject.otherlanguageSensors
dc.titleMagnetite Nanoparticles Bonded Carbon Quantum Dots Magnetically Confined onto Screen Printed Carbon Electrodes and their Performance as Electrochemical Sensor for NADH
dc.typeArtigo
local.scopus.citations28
local.scopus.eid2-s2.0-85019553237
local.scopus.subjectBioelectrochemistry
local.scopus.subjectCarbon quantum dots
local.scopus.subjectHigh-resolution transmission electron microscopy
local.scopus.subjectModified electrodes
local.scopus.subjectNADH
local.scopus.subjectNanoelectrochemistry
local.scopus.subjectNon-enzymatic
local.scopus.subjectPerformance
local.scopus.subjectScreen-printed carbon electrodes
local.scopus.subjectX- ray diffractions
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85019553237&origin=inward
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