| Fabrication of NiO/Chicken Feet Yellow Membrane doped graphene quantum dots nanocomposite modified glassy carbon electrode for glucose biosensor |
| کد مقاله : 1116-CNF |
| نویسندگان: |
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یونس بهادری *، حبیب رزمی گروه شیمی، دانشکده علوم، دانشگاه شهید مدنی آذربایجان، تبریز، ایران |
| چکیده مقاله: |
| Glucose is an important biomolecule for the human body, which is generally present in the blood to supply energy for normal activities. The development of rapid, simple and reliable methods of monitoring glucose is important in many areas such as clinical diagnostics, medicine and food industry [1]. Consequently, numerous effort has been devoted for the development non-enzymatic oxidation of glucose based on metal-oxides, metal nanoparticles, and nano-composites [2-4]. Among these nanomaterials, Ni (or NiO) is advantageous to detect glucose due to the fact that it is non-toxic, low cost, and stable. Ni (or NiO) and Ni-composite modified electrodes exhibit much high stability, reproducibility, and sensitivity with wider dynamic range for glucose detection. This paper reports a series of novel NiO nanocomposites based on high-quality chicken Feet Yellow Membrane-doped graphene quantum dots (CFYM/GQDs) for the first time for non-enzymatic detection of glucose. Uniform deposition of the nanocomposite was observed by field emission scanning electron microscopy. The electrocatalytic activity of the modified electrode for the oxidation of glucose, in aqueous basic solution was studied by using cyclic voltammetry. The sensor can effectively improve electron transfer efficiency and enhance electrocatalytic activity toward glucose, based on synergistic effect of NiO and CFYM/GQDs. The kinetic parameters of the electron transfer coefficient (α) and number of electrons involved in the rate determining step (nα) for the oxidation of glucose were determined utilizing CV. This NiO/CFYM/GQDs modified glassy carbon electrode (GCE) based sensor exhibited good electrocatalytic activity for the oxidation of glucose with a wide linear range, method low detection limit, and high sensitivity. The main advantages of the sensor include a simple and green fabrication approach, roughed and stable electrode matrix, high sensitivity and stability, fast sensing, and being highly reproducible. |
| کلیدواژه ها: |
| Glucose, Electrocatalytic oxidation, Chicken feet yellow membrane, Graphene quantum dots |
| وضعیت : چکیده برای ارائه به صورت پوستر پذیرفته شده است |