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通过实验制得纳米CuO片和CuO-MWCNTs复合物,通过丝网印刷的方式印制在银插值电极上,制得两种非酶葡萄糖传感器。CuO和CuOM WCNTs通过SEM,TEM和XRD进行表征。通过循环伏安法(CV)和计时电流法(I-t)得出CuO-MWCNTs修饰的电极比CuO修饰的电极对葡萄糖表现出更高的电化学活性,并且具备高灵敏度(1211A mmol/L·cm-2),快速响应时间(3s),低检出限(3 nmol/L)和宽线性区间(4~11.5 mmol/L)等优点。制得的传感器能够有效的抵抗尿酸(UA)、多巴胺(DA)、抗坏血酸(AA)、Na Cl、果糖、麦芽糖等物质的干扰。通过人体血清样本的检测,该传感器能够适用于实际应用中血糖的检测。
Through the experiment, nano-CuO sheets and CuO-MWCNTs composites were prepared and printed on the silver interpolated electrodes by screen printing to obtain two non-enzymatic glucose sensors. CuO and CuOM WCNTs were characterized by SEM, TEM and XRD. The cyclic voltammetry (CV) and chronoamperometry (It) showed that CuO-MWCNTs modified electrodes showed higher electrochemical activity than glucose-modified electrodes with high sensitivity (1211A mmol / L · cm -2), fast response time (3s), low detection limit (3 nmol / L) and wide linear interval (4 ~ 11.5 mmol / L) The prepared sensor can effectively resist the interference of uric acid (UA), dopamine (DA), ascorbic acid (AA), NaCl, fructose and maltose. Through the detection of human serum samples, the sensor can be applied to the detection of blood glucose in practical applications.