Akademik Veri Yönetim Sistemi
Topics in Catalysis, 2026 (SCI-Expanded, Scopus)
Developing sustainable and cost-effective electrode materials are critical for advancing enzyme-free glucose sensing technologies. In this study, a novel hybrid nanocomposite containing copper nanowires (CuNWs) and iron-oxide functionalized biochar (Fe-BC) was synthesized to fabricate a high-performance electrochemical sensor. The Fe-BC was derived from hazelnut shells via phosphoric acid-assisted pyrolysis at 500 °C, followed by iron chloride (FeCl₂) treatment to incorporate redox-active Fe₃O₄ nanoparticles. This porous carbon structure was integrated with highly conductive CuNWs, synthesized through a modified seed-mediated reduction method, and drop-cast onto a glassy carbon electrode (GCE). The hybrid interface benefits from the expanded electroactive surface area and the interconnected conductive network of CuNWs. Electrochemical analyses revealed that the CuNWs/Fe-BC electrode provides a linear response range from 5 µM to 4 mM with a detection limit of 2.5 µM at + 0.60 V. The sensor demonstrated reliable selectivity against common interfering species, such as uric acid, maltose, and ascorbic acid. Consequently, the developed sensor provides an eco-friendly and low-cost platform for non-enzymatic glucose monitoring.