An electrochemical biosensor based on human serum albumin/graphene oxide/3-aminopropyltriethoxysilane modified ITO electrode for the enantioselective discrimination of D- and L-tryptophan

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dc.contributor.authorZor, Erhan
dc.contributor.authorPatir, Imren Hatay
dc.contributor.authorBingol, Haluk
dc.contributor.authorErsoz, Mustafa
dc.date.accessioned2024-02-23T14:02:15Z
dc.date.available2024-02-23T14:02:15Z
dc.date.issued2013
dc.departmentNEÜen_US
dc.description.abstractA new electrochemical biosensor based on the human serum albumin/graphene oxide/3-aminopropyl-triethoxysilane modified indium tin oxide electrode (ITO/APTES/GO/HSA) has been developed for the discrimination of tryptophan (Trp) enantiomers. The electrode has been characterized by scanning electron microscopy (SEM) and electrochemical techniques. The electrochemical behaviors of the enantiomeric pairs (D- and L-Trp) at the ITO/APTES/GO/HSA electrode have been investigated by cyclic voltammetry in the concentration range of 0.10-1.0 mM. A clear separation between the oxidation peak potentials of D- and L-Trp, at 0.86 and 1.26 V, respectively, has suggested that the ITO/APTES/GO/HSA electrode can be used as an electrochemical biosensor for the discrimination of Trp enantiomers. In order to find the percentage of an enantiomeric form of tryptophan in a mixture, the ITO/APTES/GO/HSA electrode is used for the simultaneous detection of D- and L-Trp which showed that the percentage of one enantiomeric form can be easily measured in the presence of the other. (c) 2012 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipS.U. Research Foundation (BAP)en_US
dc.description.sponsorshipThe authors would like to thank S.U. Research Foundation (BAP) for financial support.en_US
dc.identifier.doi10.1016/j.bios.2012.10.068
dc.identifier.endpage325en_US
dc.identifier.issn0956-5663
dc.identifier.issn1873-4235
dc.identifier.pmid23208105en_US
dc.identifier.scopus2-s2.0-84871668852en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage321en_US
dc.identifier.urihttps://doi.org/10.1016/j.bios.2012.10.068
dc.identifier.urihttps://hdl.handle.net/20.500.12452/11645
dc.identifier.volume42en_US
dc.identifier.wosWOS:000319951700052en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevier Advanced Technologyen_US
dc.relation.ispartofBiosensors & Bioelectronicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectChiral Sensoren_US
dc.subjectEnantioselectivityen_US
dc.subjectIndium Tin Oxideen_US
dc.subjectGraphene Oxideen_US
dc.subjectTryptophanen_US
dc.subjectHuman Serum Albuminen_US
dc.titleAn electrochemical biosensor based on human serum albumin/graphene oxide/3-aminopropyltriethoxysilane modified ITO electrode for the enantioselective discrimination of D- and L-tryptophanen_US
dc.typeArticleen_US

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