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Spatial Architecture of Modified Carbon Nanotubes/Electrochemically Reduced Graphene Oxide Nanomaterial for Fast Electron Transfer. Application in Glucose Biosensor

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cris.lastimport.scopus2024-02-12T20:03:29Z
dc.abstract.enElectron transfer (ET) reactions in bioelectrocatalysis of enzymes at electrode surfaces require not only the efficient immobilization, but also highly conductive nanostructured platform, which allows for retaining its bioactivity and structural conformation. The novel architecture of spatially separated electrochemically reduced graphene oxide (ERGO) by multi-walled carbon nanotubes functionalized with 4-(pyrrole-1-yl) benzoic acid (MWCNT/PyBA) with the accurate porous structure could be an alternative for earlier approaches to the construction of bioelectrocatalytic systems with rapid diffusion of reagents from the solution to the enzyme molecule. The formation of ERGO/MWCNT/PyBA system was confirmed by electrochemical, spectroscopic and microscopic methods. The cyclic voltammetry experiments revealed that the presence of ERGO in the conductive material affects the electronic communication between the enzyme molecule and modified electrode surface greatly improving its ET properties resulting in a double increase of the heterogeneous ET rate constant value (ks=6.5 s1). The fabricated glucose oxidase based biosensor sensi tively detects glucose, therefore, ERGO/ MWCNT/PyBA architecture could provide a novel and efficient platform for immobilization of redox enzymes.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorJakubów-Piotrowska, Katarzyna
dc.contributor.authorKowalewska, Barbara
dc.date.accessioned2024-01-26T07:54:02Z
dc.date.available2024-01-26T07:54:02Z
dc.date.issued2019
dc.description.financeNie dotyczy
dc.description.number5
dc.description.volume31
dc.identifier.doi10.1002/ELAN.201800773
dc.identifier.issn1040-0397
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/120276
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofElectroanalysis
dc.relation.pages981-990
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enElectrochemically reduced graphene oxide
dc.subject.encarbon nanotubes
dc.subject.enelectron transfer
dc.subject.englucose oxidase
dc.subject.englucose biosensor
dc.titleSpatial Architecture of Modified Carbon Nanotubes/Electrochemically Reduced Graphene Oxide Nanomaterial for Fast Electron Transfer. Application in Glucose Biosensor
dc.typeJournalArticle
dspace.entity.typePublication