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. 2018 Apr 3;29(13):135502. doi: 10.1088/1361-6528/aaaa2c.
It is highly attractive to construct stable enzyme-free glucose sensors based on three-dimensional direct electrochemical detection of glucose. In this paper, a copper 7,7,8,8-tetracyanoquinodimethane (Cu(TCNQ)) nanorod array on Cu foam (Cu(TCNQ) NA/CF) is proposed as an efficient catalyst for electrochemical glucose oxidation in alkaline conditions. When Cu(TCNQ) NA/CF was used as the enzyme-free sensory of glucose, the sensor showed a response time within 3 s, a wide linear detection in the range 0.001-10.0 mM, the minimum limit of detection was as low as 10 nM (S/N = 3), and it had a high sensitivity of 26 987 μA mM cm. Moreover, this sensor also possesses long-term stability, high selectivity, reproducibility, and actual applications for fresh human serum sample analysis is also successfully accepted.
构建基于三维直接电化学检测葡萄糖的稳定无酶葡萄糖传感器具有很大的吸引力。本文提出了一种铜泡沫上的铜 7,7,8,8-四氰基对醌二甲烷（Cu(TCNQ)）纳米棒阵列（Cu(TCNQ) NA/CF），作为碱性条件下电化学葡萄糖氧化的有效催化剂。当 Cu(TCNQ) NA/CF 用作无酶葡萄糖传感器时，该传感器在 0.001-10.0 mM 的宽线性检测范围内表现出 3 s 以内的响应时间，检测下限低至 10 nM（S/N = 3），灵敏度高达 26987 μA mM cm。此外，该传感器还具有长期稳定性、高选择性、重现性，并且成功接受了新鲜人血清样品分析的实际应用。
