Non-enzymatic impedimetric sensor based on 3-aminophenylboronic acid functionalized screen-printed carbon electrode for highly sensitive glucose detection

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dc.creatorRicardo Adriano Dorledo de Faria
dc.creatorHassan Iden
dc.creatorLuiz Guilherme Dias Heneine
dc.creatorTulio Matencio
dc.creatorYounès Messaddeq
dc.date.accessioned2023-08-07T13:34:09Z
dc.date.accessioned2025-09-09T01:03:41Z
dc.date.available2023-08-07T13:34:09Z
dc.date.issued2019
dc.description.sponsorshipOutra Agência
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.3390/s19071686
dc.identifier.issn1424-8220
dc.identifier.urihttps://hdl.handle.net/1843/57518
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofSensors
dc.rightsAcesso Aberto
dc.subjectEletroquímica
dc.subjectDetectores eletroquímicos
dc.subjectEspectroscopia de impedância
dc.subjectGlicose
dc.subject.otherSensor
dc.subject.otherGlucose
dc.subject.otherElectrochemical impedance spectroscopy
dc.subject.otherBoronic acid
dc.titleNon-enzymatic impedimetric sensor based on 3-aminophenylboronic acid functionalized screen-printed carbon electrode for highly sensitive glucose detection
dc.typeArtigo de periódico
local.citation.issue7
local.citation.spage1686
local.citation.volume19
local.description.resumoA highly sensitive glucose sensor was prepared by a one-step method using 3-aminophenyl boronic acid as a unit of recognition and a screen-printed carbon electrode (SPCE) as an electrochemical transducer. Scanning Electron Microscopy confirmed the success of the functionalization of the SPCE due to the presence of clusters of boronic acid distributed on the carbon surface. In agreement with the Electrochemical Impedance Spectroscopy (EIS) tests performed before and after the functionalization, Cyclic Voltammetry results indicated that the electroactivity of the electrode decreased 37.9% owing to the presence of the poly phenylboronic acid on the electrode surface. EIS revealed that the sensor was capable to selectively detect glucose at a broad range of concentrations (limit of detection of 8.53 × 10−9 M), not recognizing fructose and sucrose. The device presented a stable impedimetric response when immediately prepared but suffered the influence of the storage time and some interfering species (dopamine, NaCl and animal serum). The response time at optimized conditions was estimated to be equal to 4.0 ± 0.6 s.
local.identifier.orcidhttps://orcid.org/0000-0002-7025-7042
local.identifier.orcidhttps://orcid.org/0000-0003-0707-2691
local.identifier.orcidhttps://orcid.org/0000-0002-5660-8125
local.identifier.orcidhttps://orcid.org/0000-0002-0868-2726
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA QUÍMICA
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.mdpi.com/1424-8220/19/7/1686

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