Fabricationof ElectrochemicalImmunosensorforDetectionof Interleukin8 Biomarkervia Layer-by-layerSelf-assemblyProcesson Cost-effectiveFluorineTin OxideElectrode
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CitationAydın, E. B., & Sezgintürk, M. K. (2021). Fabrication of Electrochemical Immunosensor for Detection of Interleukin 8 Biomarker via Layer‐by‐layer Self‐assembly Process on Cost‐effective Fluorine Tin Oxide Electrode. Electroanalysis, 33(6), 1596–1605. https://doi.org/10.1002/elan.202060603
A highly sensitive impedimetric immunosensor for the determination of interleukin 8 (IL 8) cancer biomarker was fabricated via simple fabrication process. A silane agent with isocyanate groups, 3-(triethoxysilyl)propyl isocyanate (IPTES), were utilized for binding of IL 8 antigen specific antibodies and self-assembled on the fluorine tin oxide (FTO) substrate with a standard silanization chemistry. Under optimum experimental conditions, the designed immunosensor had a wide linear detection range of 0.02-4 pg/mL, a low limit of detection of 11.9 fg/mL and a high sensitivity of 4.42 k omega pg(-1) mL cm(-2). The designed biosensor displayed high reproducibility and repeatability, good selectivity against interference biomarkers.