Electrochemical (bio)sensors based on carbon quantum dots, ionic liquid and gold nanoparticles for bisphenol

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dc.contributor.authorÖrenli, Demet
dc.contributor.authorSelvi, Ceren Kaçar
dc.contributor.authorÖztürk, Funda
dc.contributor.authorErden, Pınar Esra
dc.contributor.authorKılıç, Esma
dc.date.accessioned2023-05-06T17:20:48Z
dc.date.available2023-05-06T17:20:48Z
dc.date.issued2023
dc.departmentFakülteler, Fen Edebiyat Fakültesi, Kimya Bölümü
dc.description.abstractElectrochemical (bio)sensors were developed for bisphenol A (BPA) determination. Screen printed carbon electrode (SPCE) was modified with ionic liquid 1- butyl-3-methylimidazolium tetrafluoroborate (IL), carbon quantum dots (CQD) and gold nanoparticles (AuNP) for the fabrication of the BPA sensor. Electrode surface composition was optimized for the deposition time of AuNP, amount of CQD and percentage of IL using the central composite design (CCD) method. The results of the CCD study indicated that maximum amperometric response was recorded when 9.8 mu g CQD, 3% IL and 284 s AuNP deposition time were used in modification. Tyrosinase (Ty) was further modified on the AuNP/CQD IL/SPCE to fabricate the biosensor. Analytical performance characteristics of the BPA sensor were investigated by differential pulse anodic adsorptive stripping voltammetry and the AuNP/CQD IL/SPCE sensor exhibited a linear response to BPA in the range of 2.0 x 10(-8) 3.6 x 10(-6) M with a detection limit of 1.1 x 10(-8) M. Amperometric measurements showed that the linear dynamic range and detection limit of the Ty/AuNP/CQD IL/SPCE were 2.0 x 10(-8) - 4.0 x 10(-6) M and 6.2 x 10(-9) M, respectively. Analytical performance characteristics such as sensitivity, reproducibility and selectivity were investigated for the presented (bio)sensors. The analytical applicability of the (bio)sensors to the analysis of BPA in mineral water samples was also tested.
dc.description.sponsorshipCouncil of Higher Education of Turkey (COHE)
dc.description.sponsorshipDemet Orenli thanks to the Council of Higher Education of Turkey (COHE) for the 100/2000 doctoral scholarship.
dc.identifier.doi10.1016/j.ab.2022.115002
dc.identifier.issn0003-2697
dc.identifier.issn1096-0309
dc.identifier.pmid36473678
dc.identifier.scopus2-s2.0-85144595680
dc.identifier.scopusqualityQ3
dc.identifier.urihttps://doi.org/10.1016/j.ab.2022.115002
dc.identifier.urihttps://hdl.handle.net/20.500.11776/11953
dc.identifier.volume662
dc.identifier.wosWOS:000933397600001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorÖztürk, Funda
dc.language.isoen
dc.publisherAcademic Press Inc Elsevier Science
dc.relation.ispartofAnalytical Biochemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectElectrochemical biosensor
dc.subjectBisphenol A
dc.subjectCarbon quantum dots
dc.subjectGold nanoparticles
dc.subjectIonic liquid
dc.subjectCentral Composite Design
dc.subjectReduced Graphene Oxide
dc.subjectSensitive Detection
dc.subjectSensor
dc.subjectBiosensor
dc.subjectElectrode
dc.subjectNanotube
dc.subjectQuantitation
dc.subjectHydroquinone
dc.subjectFluorescence
dc.titleElectrochemical (bio)sensors based on carbon quantum dots, ionic liquid and gold nanoparticles for bisphenol
dc.typeArticle

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