Li Xiaoyan, Sun Yanfang, Zhang Xiao, Guo Jinxue
J Nanosci Nanotechnol. 2018 Oct 1;18(10):7251-7254. doi: 10.1166/jnn.2018.15450.
The electrochemical sensing performance is sensitive to the surface area. To achieve superior performance, we design and anchor Co3O4 nanosheets on the surface of SiO2 nanospheres via a simple solvothermal method, which possess large sensing interface and exposed catalytic sites due to the 2D structure and edge terminated feature. Based on these combined structural advantages, the present sample is employed as an ideal platform for non-enzymatic glucose sensing and exhibits high sensitivity, low detection limit, and wide linear range for glucose electrocatalytic oxidation, enabling it as a promising candidate for enzyme-free amperometric sensor for glucose determination.
电化学传感性能对表面积敏感。为了实现卓越性能，我们通过一种简单的溶剂热法在SiO2纳米球表面设计并锚定了Co3O4纳米片，由于其二维结构和边缘终止特征，这些纳米片具有大的传感界面和暴露的催化位点。基于这些综合的结构优势，本样品被用作非酶葡萄糖传感的理想平台，对葡萄糖电催化氧化表现出高灵敏度、低检测限和宽线性范围，使其成为用于葡萄糖测定的无酶安培传感器的有前途的候选者。
