中文摘要：

构建了包括CuO/Cu（OH）2、CuO/Cu（OH）2-MWCNTs（多壁碳纳米管）和CuO/Cu（OH）2-MWCNTs-COOH（羧化多壁碳纳米管）在内的多种无酶葡萄糖电化学传感器。该类传感器均利用电极现场产生的Cu（Ⅲ）来加速葡萄糖的电催化氧化,而碳纳米管的引入对于加速界面电子转移则起到了关键作用,羧化多壁碳纳米管更因其亲水性基团的存在,在增加其与修饰层内铜化合物的相容性的同时更是增加了葡萄糖与铜化合物的有效接触面积,从而使传感器在检测灵敏度以及抗干扰能力方面具有较大优势。

英文摘要：

In this report,a series of simple and sensitive nonenzymatic glucose sensors based on copper compound were fabricated.The electrochemical performances of these sensors which were modified by copper compound（CuO/Cu（OH）2）,multi-walled carbon nanotubes（MWCNTs）and carboxylic acidfunctionalized MWCNTs（MWCNT-COOH）were investigated by cyclic voltammetry and chronoamperometry.The result indicates that Cu（Ⅲ）species act as an electron transfer mediator and thus catalyze the oxidation of glucose.Compared to the CuO/Cu（OH）2modified electrode,MWCNTs/MWCNT-COOH-CuO/Cu（OH）2modified electrodes substantially increase the efficiency of the electrocatalytic oxidation for glucose.As for MWCNT-COOH-CuO/Cu（OH）2modified electrode,the hydrophilic groups on the carboxylated MWCNTs allow homogenous distribution of the copper ions,which facilitates the synergistic effect of the sensor towards the oxidation of glucose.The MWCNT-COOH-CuO/Cu（OH）2modified electrode exhibited excellent selectivity to glucose without the influence of common interfering substances and had a practical application.The linear range of MWCNT-COOH-copper sensor for glucose detection is 5.9-310μmol/L with a detection limit of 1.8μmol/L.