Akademik Veri Yönetim Sistemi
Iranian Polymer Journal (English Edition), 2026 (SCI-Expanded, Scopus)
Using the most economical sensor system without compromising reliability and accuracy is crucial for determining glucose levels in clinical, biological, and food samples. In the present research, a new nanocomposite-based sensor was developed for glucose determination by using polyvinylidene fluoride nanofibers (PVDF) and polypyrrole (PPy). The prepared sensor system is economical, easy to prepare and responds quickly. The synthesized polymers were further analyzed for physico-chemical properties through characterization methods such as Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and energy dispersive X-Ray spectroscopy (EDX) measurements. The thermogravimetric analysis (TGA) curve of the PVDF nanofibers exhibited a relatively similar structure to its powder. In the composite structure, the appearance of the curve resembled that of the PVDF nanofiber and powder, but as the amount of PPy increase, the structure began to decompose at higher temperatures. The working pH of the prepared sensor was determined as 7. When the differential pulse voltammetry (DPV) graphs generated at different glucose concentrations using a new electrode each time were superposed, the current values obtained at 0.140 V in the DPV curves decreased as the glucose concentration increased. The maximum value of the linear working range of the designed glucose sensor was found to be 0.625 mM. The linear operating range was between 0.039 and 0.625 mM. The calculated detection limit was 67 µM. It showed high selectivity, stability, and sensitivity (1890 µAmM−1cm− 2) for glucose identification. The reliability of the sensor was evaluated by the determination of glucose fruit juice sample.