College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
Gansu Computing Center, Lanzhou 730030, China.
Sensors (Basel). 2018 Nov 15;18(11):3972. doi: 10.3390/s18113972.
A NiFe alloy nanoparticle/graphene oxide hybrid (NiFe/GO) was prepared for electrochemical glucose sensing. The as-prepared NiFe/GO hybrid was characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results indicated that NiFe alloy nanoparticles can be successfully deposited on GO. The electrochemical glucose sensing performance of the as-prepared NiFe/GO hybrid was studied by cyclic voltammetry and amperometric measurement. Results showed that the NiFe/GO-modified glassy carbon electrode had sensitivity of 173 μA mM cm for glucose sensing with a linear range up to 5 mM, which is superior to that of commonly used Ni nanoparticles. Furthermore, high selectivity for glucose detection could be achieved by the NiFe/GO hybrid. All the results demonstrated that the NiFe/GO hybrid has promise for application in electrochemical glucose sensing.
一种 NiFe 合金纳米粒子/氧化石墨烯杂化材料（NiFe/GO）被制备用于电化学葡萄糖传感。通过透射电子显微镜（TEM）和 X 射线衍射（XRD）对所制备的 NiFe/GO 杂化材料进行了表征。结果表明，NiFe 合金纳米粒子可以成功沉积在 GO 上。通过循环伏安法和安培法测量研究了所制备的 NiFe/GO 杂化材料的电化学葡萄糖传感性能。结果表明，NiFe/GO 修饰的玻碳电极对葡萄糖传感的灵敏度为 173 μA mM cm，线性范围高达 5 mM，优于常用的 Ni 纳米粒子。此外，NiFe/GO 杂化材料可以实现对葡萄糖检测的高选择性。所有结果表明，NiFe/GO 杂化材料在电化学葡萄糖传感中有很好的应用前景。
