An electrochemical biosensor developed for the online monitoring of H2O2 based on the reduced graphene oxide-cerium dioxide nanocomposite

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dc.contributor.authorMukherjee, Atripancs
dc.contributor.authorAshrafi, Amirmansoorcs
dc.contributor.authorBytešníková, Zuzanacs
dc.contributor.authorRichtera, Lukášcs
dc.contributor.authorAdam, Vojtěchcs
dc.date.issued2020-06-10cs
dc.description.abstractA biosensor was developed for monitoring H2O2 based on reduced Graphene Oxide-Cerium Oxide (rGO-CeO2) nanocomposite (NC). The NC shows catalytic effect on the electrochemical reduction of H2O2 at 0.3 V. The effect of the NC on the electrochemical reduction of H2O2 was studied by cyclic voltammetry and compared with bare glassy carbon (GC) and GC/r-GO. Moreover, to improve the signal a complex containing copper was incorporated in the dispersion of the nanocomposite which acts as a mediator. It was found that the electrochemical reduction of H2O2 takes place at less negative potential with increased peak current attitude at GC/r-GO-mediator. The developed sensor GC/r-GO-mediator, was applied for the continuous monitoring of H2O2 by chronoamperometry. The applied potential was 0.3 V which results in the enhanced sensitivity of the developed biosensor. The developed biosensor shows good stability, and reproducibility. The reproducibility of the developed electrode was evaluated by calculation of relative standard deviation value 6.77%. The linear range was found to be 3.4 - 23.48 g/ml. Furthermore, limit of detection and limit of quantification were 0.68 g/ml and 2.27 g/ml respectively.en
dc.formattextcs
dc.format.extent396-401cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationNANOCON 2019 CONFERENCE PROCEEDINGS. 2020, p. 396-401.en
dc.identifier.doi10.37904/nanocon.2019.8613cs
dc.identifier.isbn978-80-87294-95-6cs
dc.identifier.orcid0000-0002-8288-3999cs
dc.identifier.orcid0000-0002-8527-286Xcs
dc.identifier.other164257cs
dc.identifier.researcheridN-9991-2014cs
dc.identifier.researcheridD-7686-2012cs
dc.identifier.scopus12040049600cs
dc.identifier.urihttp://hdl.handle.net/11012/196670
dc.language.isoencs
dc.publisherTangercs
dc.relation.ispartofNANOCON 2019 CONFERENCE PROCEEDINGScs
dc.relation.urihttps://doi.org/10.37904/nanocon.2019.8613cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectNanocompositeen
dc.subjectreduced graphene oxide-cerium dioxideen
dc.subjectbiosensoren
dc.subjectbiomimeticen
dc.subjectchronoamperometryen
dc.titleAn electrochemical biosensor developed for the online monitoring of H2O2 based on the reduced graphene oxide-cerium dioxide nanocompositeen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-164257en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:50:03en
sync.item.modts2025.01.17 16:44:15en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Chytré nanonástrojecs
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