Key Laboratory of Magnetic Molecules and Magnetic Information Materials (Ministry of Education), School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, People's Republic of China.
Nanotechnology. 2019 Apr 19;30(16):165501. doi: 10.1088/1361-6528/aafe53. Epub 2019 Jan 14.
As the special sensor for glucose detection, a non-noble-metal nanoarray architecture is extremely attractive due to its easy accessibility to target molecules and more exposed surface area. In this communication, we report the first synthesis of FeWO microsphere-array on the three-dimensional (3D) Ni foam (FeWO microspheres/NF) as the mimetic electrode for efficient catalytic oxidation of glucose in an alkaline medium. When used as an artificial analog glucose sensor, the result of the present sensing system can also be calculated with a sensitivity of 2810 μA mM cm, a linear range from 0.04 mM to 2 mM and a detection limit up to 1.4 μM (S/N = 3). This glucose sensor with satisfactory stability and reproducibility can also be applied to the detection of glucose in human serum. As a promising sensing platform, this proposed 3D FeWO microspheres/NF may open a new strategy for pursuing electrochemical detection of biomolecules.
作为葡萄糖检测的特殊传感器，由于其易于接近目标分子和更大的暴露表面积，非贵金属纳米阵列结构极具吸引力。在本通讯中，我们报告了首例在三维 (3D) 泡沫镍 (NF) 上合成 FeWO 微球阵列 (FeWO 微球/NF) 的方法，该微球作为模拟电极，可在碱性介质中有效催化氧化葡萄糖。当用作人工模拟葡萄糖传感器时，本传感系统的结果还可以计算出灵敏度为 2810 μA mM cm、线性范围为 0.04 mM 至 2 mM 和检测限低至 1.4 μM（S/N = 3）。该葡萄糖传感器具有令人满意的稳定性和重现性，也可用于检测人血清中的葡萄糖。作为一种很有前途的传感平台，该 3D FeWO 微球/NF 可能为生物分子的电化学检测开辟新的策略。
