High performance electrochemical sensors for dopamine and epinephrine using nanocrystalline carbon quantum dots obtained under controlled chronoamperometric conditions

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dc.contributor.authorCanevari T.C.
dc.contributor.authorNakamura M.
dc.contributor.authorCincotto F.H.
dc.contributor.authorDe Melo F.M.
dc.contributor.authorToma H.E.
dc.date.accessioned2024-03-13T00:52:44Z
dc.date.available2024-03-13T00:52:44Z
dc.date.issued2016
dc.description.abstract© 2016 Elsevier Ltd. All rights reserved.This work describes a chronoamperometrically-controlled synthesis of nanocrystalline carbon quantum dots (C-dots) and their study based on UV-Vis, Raman, FTIR, fluorescence spectroscopy, atomic force and high resolution transmission electron microscopy. The electrochemical synthesis was carried out using 1-propanol as a carbon source and the C-dots properties exhibited a great dependence on the electrolysis time spent in the process. The C-dots were applied as prepared, on the surface of a glassy carbon electrode, showing excellent electrochemical response in the simultaneous determination of dopamine and epinephrine. The detection limits for the two analytes were 4.6 nmol L-1 and 6.1 nmol L-1, respectively, and the overall electrode performance exhibited a much better electrocatalytic response, in relation to the similar carbon modified electrodes prepared under comparable conditions, with single wall carbon nanotubes and graphene oxide.
dc.description.firstpage464
dc.description.lastpage470
dc.description.volume209
dc.identifier.doi10.1016/j.electacta.2016.05.108
dc.identifier.issn0013-4686
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35946
dc.relation.ispartofElectrochimica Acta
dc.rightsAcesso Restrito
dc.subject.otherlanguageC-dots Nanoparticles
dc.subject.otherlanguageDopamine
dc.subject.otherlanguageElectrocatalysis
dc.subject.otherlanguageElectrochemical synthesis
dc.subject.otherlanguageEpinephrine
dc.titleHigh performance electrochemical sensors for dopamine and epinephrine using nanocrystalline carbon quantum dots obtained under controlled chronoamperometric conditions
dc.typeArtigo
local.scopus.citations90
local.scopus.eid2-s2.0-84971278826
local.scopus.subjectCarbon-modified electrodes
local.scopus.subjectDopamine
local.scopus.subjectElectrocatalytic response
local.scopus.subjectElectrochemical response
local.scopus.subjectElectrochemical synthesis
local.scopus.subjectEpinephrine
local.scopus.subjectGlassy carbon electrodes
local.scopus.subjectSimultaneous determinations
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84971278826&origin=inward
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