Xiao Xinxin, Wang Meng'en, Li Hui, Pan Yichuan, Si Pengchao
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan 250061, People׳s Republic of China.
School of Mechanical Engineering, Shandong Jiaotong University, Jinan 250023, People׳s Republic of China.
Talanta. 2014 Jul;125:366-71. doi: 10.1016/j.talanta.2014.03.030. Epub 2014 Mar 21.
A kind of dealloyed nanoporous gold (NPG)/ultrathin CuO film nanohybrid for non-enzymatic glucose sensing has been prepared by a simple, in-situ, time-saving and controllable two-step electrodeposition. The three-dimensional and bicontinuous nanoporous structure of the nanocomposites have been characterized by scanning electron microscope (SEM) and transmission electron microscopy (TEM), and the electrochemical tests have been estimated by cyclic voltammetry and single potential step chronoamperometry (SPSC). The optimal NPG/CuO electrode exhibits great electrocatalytic activity towards glucose oxidation and also shows obvious linear response to glucose up to 12 mM with a high sensitivity of 374.0 µA cm(-2)mM(-1) and a good detection limit of 2.8 µM (S/N=3), as well as strong tolerance against chloride poisoning and interference of ascorbic acid and uric acid.
通过一种简单、原位、省时且可控的两步电沉积法制备了一种用于非酶葡萄糖传感的脱合金纳米多孔金（NPG）/超薄氧化铜（CuO）薄膜纳米复合材料。利用扫描电子显微镜（SEM）和透射电子显微镜（TEM）对该纳米复合材料的三维双连续纳米多孔结构进行了表征，并通过循环伏安法和单电位阶跃计时电流法（SPSC）进行了电化学测试。最佳的NPG/CuO电极对葡萄糖氧化表现出极大的电催化活性，对高达12 mM的葡萄糖也呈现出明显的线性响应，灵敏度高达374.0 μA cm(-2)mM(-1)，检测限低至2.8 μM（S/N = 3），同时对氯化物中毒以及抗坏血酸和尿酸的干扰具有很强的耐受性。
