A highly sensitive disposable electrochemical sensor based on copper nanoparticles for pesticide imidacloprid determination in contaminated water sources

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dc.contributor.authorFernandes J.O.
dc.contributor.authorBernardino C.A.R.
dc.contributor.authorMarques M.C.D.C.
dc.contributor.authorde Souza O.P.L.
dc.contributor.authorMahler C.F.
dc.contributor.authorBraz B.F.
dc.contributor.authorSantelli R.E.
dc.contributor.authorCanevari T.D.C.
dc.contributor.authorCincotto F.H.
dc.date.accessioned2025-05-01T06:25:24Z
dc.date.available2025-05-01T06:25:24Z
dc.date.issued2025
dc.description.abstract© 2025 The Royal Society of Chemistry.The study aimed to develop a new electrochemical sensor based on a screen-printed carbon electrode modified with copper nanoparticles (SPE/CuNPs) to determine imidacloprid (IMI) pesticide in environmental samples. The sensor's structural characterization and electrochemical performance were assessed through high-resolution transmission electron microscopy and ultraviolet-visible spectroscopy, electrochemical impedance spectroscopy, cyclic voltammetry, and differential pulse voltammetry. The results indicated that the SPE/CuNPs exhibited a porous and rough surface morphology, which enhances the adsorption of chemical species at the electrode/solution interface. Furthermore, the incorporation of copper nanoparticles significantly improved the sensor's sensitivity. The sensor displayed high sensitivity and selectivity for detecting IMI, with a detection limit of 10.8 nmol L−1 and a linear response range of 0.059 to 0.516 μmol L−1, highlighting its robust analytical performance in environmental sample analysis.
dc.identifier.doi10.1039/d4ew00829d
dc.identifier.issnNone
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/40621
dc.relation.ispartofEnvironmental Science: Water Research and Technology
dc.rightsAcesso Restrito
dc.titleA highly sensitive disposable electrochemical sensor based on copper nanoparticles for pesticide imidacloprid determination in contaminated water sources
dc.typeArtigo
local.scopus.citations0
local.scopus.eid2-s2.0-105002408828
local.scopus.subjectContaminated water
local.scopus.subjectCopper nanoparticles
local.scopus.subjectDisposables
local.scopus.subjectElectrochemical performance
local.scopus.subjectElectrochemicals
local.scopus.subjectEnvironmental sample
local.scopus.subjectImidacloprids
local.scopus.subjectScreen-printed carbon electrodes
local.scopus.subjectStructural characterization
local.scopus.subjectWater source
local.scopus.updated2025-06-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105002408828&origin=inward
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