Inkjet printing of highly dispersed, shortened, and defect-rich MWCNTs to construct flexible electrochemical sensors for the detection of bisphenol A in milk samples

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dc.contributor.authorSarikaya, Sumeyye
dc.contributor.authorIpekci, Hasan Huseyin
dc.contributor.authorKotan, Hasan
dc.contributor.authorUzunoglu, Aytekin
dc.date.accessioned2024-02-23T14:02:23Z
dc.date.available2024-02-23T14:02:23Z
dc.date.issued2023
dc.departmentNEÜen_US
dc.description.abstractAn inkjet-printed electrochemical bisphenol A (BPA) sensor was developed by exploiting the high dispersibility of shortened and defect-rich nitrogen-doped multi-walled carbon nanotubes (MWCNTs). To enhance the dispersibility of MWCNTs in water-based dispersant, the defect concentration was increased by both creating shortened CNT and heteroatom doping, and modification of their surfaces with sulfonate (SO3H) groups. CNTbased inks were prepared by dispersing modified CNT structures in deionized water and the stability and physical properties of the inks were determined. The results suggested that the shortening of MWCNT and SO3H functionalization strategies improved the stability of CNT-based aqueous inks significantly, which enabled the preparation of highly concentrated inks up to 20 mg/ml with high stability. The CNT-based inks were printed on flexible polyethylene tetraflate (PET) and used as an electrochemical BPA sensor. The electrochemical analytical performance of the printed sensors was evaluated using chronoamperometry and differential pulse voltammetry methods. The sensors showed a wide linear range of 5-100 (CA) and 60-700 (DPV) with a LOD of 0.7 mu M. The real sample analysis was conducted in milk and high recoveries were obtained, suggesting the applicability of the sensors in real media.en_US
dc.description.sponsorshipNecmettin Erbakan University Research Fund [181719002]en_US
dc.description.sponsorshipThe authors acknowledge the financial support of Necmettin Erbakan University Research Fund under the project number of 181719002.en_US
dc.identifier.doi10.1016/j.carbon.2023.118362
dc.identifier.issn0008-6223
dc.identifier.issn1873-3891
dc.identifier.scopus2-s2.0-85167445742en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.carbon.2023.118362
dc.identifier.urihttps://hdl.handle.net/20.500.12452/11684
dc.identifier.volume214en_US
dc.identifier.wosWOS:001144187300001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofCarbonen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectInkjet Printingen_US
dc.subjectMwcnt Inksen_US
dc.subjectFlexible Sensorsen_US
dc.subjectElectrochemical Bpa Detectionen_US
dc.titleInkjet printing of highly dispersed, shortened, and defect-rich MWCNTs to construct flexible electrochemical sensors for the detection of bisphenol A in milk samplesen_US
dc.typeArticleen_US

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