Facile Synthesis and Electrochemical Performance of Graphene-Modified Cu۲O Nanocomposite for Use in Enzyme-Free Glucose Biosensor
- سال انتشار: 1399
- محل انتشار: Iranian Journal of Chemistry and Chemical Engineering، دوره: 39، شماره: 2
- کد COI اختصاصی: JR_IJCCE-39-2_001
- زبان مقاله: انگلیسی
- تعداد مشاهده: 78
نویسندگان
Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz ۷۱۳۴۸۵۱۱۵۴, I.R. IRAN
Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz ۷۱۳۴۸۵۱۱۵۴, I.R. IRAN
Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz ۷۱۳۴۸۵۱۱۵۴, I.R. IRAN
Department of Chemistry, Seoul National University, Seoul, KOREA
چکیده
Graphene-modified Cu۲O nanocomposite was synthesized under facile microwave irradiation of an aqueous solution and has been investigated as an enzyme-free glucose biosensor. Morphology and crystal structure of the graphene-modified Cu۲O nanocomposite were investigated by using electron microscopy and X-Ray Diffraction (XRD) analyses. Also, the electrochemical performance of the graphene-modified Cu۲O nanocomposite for the measurement of glucose concentration in alkaline media was evaluated by using cyclic voltammetry and chronoamperometric measurements. The electrochemical studies revealed that the graphene-modified nanocomposite electrode exhibited a high performance for non-enzymatic oxidation of glucose with a desirable sensitivity. Also, the fabricated graphene-modified biosensor exhibited a wide linear response for glucose detection in the concentrations ranges from ۲ µM to ۱۲ mM and a desirable detection limit of ۲ µM. Also, the graphene-modified Cu۲O nanocomposite provided an appropriate selective response for glucose detection in the presence of high concentrations of ascorbic acid and dopamine.کلیدواژه ها
Electrochemical biosensor, non-enzymatic sensors, Graphene, Cu۲O, Glucoseاطلاعات بیشتر در مورد COI
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