Inkjet-printed flexible electrochemical sensors based on palladium and silver-decorated, N-doped holey graphene and nano graphene

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dc.authorid0000-0001-9441-5175
dc.authorid0009-0007-4424-0662
dc.contributor.authorCeylan, Ebru
dc.contributor.authorGurbuz, Havva Nur
dc.contributor.authorKotan, Hasan
dc.contributor.authorUzunoglu, Aytekin
dc.date.accessioned2026-02-08T15:15:22Z
dc.date.available2026-02-08T15:15:22Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractInkjet printing is a low-cost method to deposit conductive layers with high precision for electrochemical applications. This work reports the development of flexible electrochemical sensors by inkjet printing of palladium and silver (PdAg)-decorated nitrogen-doped holey graphene and nanographene. Our novel ink formulations were printed on flexible polyethylene tetraflate (PET) substrates to fabricate robust and high-performance flexible electrochemical sensors. The physicochemical properties of the inks, including stability, surface tension, viscosity, and printability, were determined. In addition, the printed electrodes' homogeneity, resistance, and bending resilience were assessed. The electrochemical performance of the electrodes was evaluated against hydrogen peroxide (H2O2) and glucose (Glc). The defective graphene structures had a paramount influence on the ink stability and the ultimate electrochemical performance of the flexible sensors. The sensors showed a low detection limit (LOD) of 3.5 and 0.41 mu M against H2O2 and glucose, respectively, with linear ranges of 0.1-5.6 mM H2O2 and 1-19 mM glucose. Furthermore, the real sample analysis results indicated the applicability of the sensors in real samples.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [118F433]
dc.description.sponsorshipThis work was financially supported by The Scientific and Technological Research Council of Turkey (TUBITAK under project #118F433).
dc.identifier.doi10.1016/j.microc.2025.112682
dc.identifier.issn0026-265X
dc.identifier.issn1095-9149
dc.identifier.scopus2-s2.0-85214301152
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.microc.2025.112682
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5751
dc.identifier.volume209
dc.identifier.wosWOS:001414333200001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofMicrochemical Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectInkjet printing
dc.subjectElectrochemical sensor
dc.subjectHoley graphene
dc.subjectFlexible sensor
dc.subjectGraphene
dc.titleInkjet-printed flexible electrochemical sensors based on palladium and silver-decorated, N-doped holey graphene and nano graphene
dc.typeArticle

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