Preparation and Electrocatalytic Performance of Functionalized Copper-Based Nanoparticles Supported on the Gold Surface
Preparation and Electrocatalytic Performance of Functionalized Copper-Based Nanoparticles Supported on the Gold Surface
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DOI：
10.1002/elan.200603598
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发表时间：
2006-11
期刊：
影响因子：
3
通讯作者：
Haiyan Liu;Xiaodan Su;Xuefei Tian;Zhen Huang;Wenbo Song;Jing-zhe Zhao
中科院分区：
文献类型：
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作者：
Haiyan Liu;Xiaodan Su;Xuefei Tian;Zhen Huang;Wenbo Song;Jing-zhe Zhao
采用高分子稳定剂聚乙烯吡咯烷酮（PVP）包封铜纳米粒子（简称PVP-CuNPs），在固体基质上构建了无酶葡萄糖传感器。详细评价了基于cunps的传感器对葡萄糖的传感和分析性能。循环伏安法（CV）、计时安培法（I-t）和流动注射安培法（FIA）在+0.45 V下测定葡萄糖的灵敏度高、稳定性好、重现性好，比以往报道的测定结果差200 mV。本研究获得的检测限低至1.0×10−8 M（信噪比=3），线性范围为1.0×10−7 M至5.0×10−3 M。
Copper nanoparticles (CuNPs) encapsulated by polymeric stabilizer of polyvinylpyrrolidone (PVP) (noted as PVP-CuNPs) were simply prepared and used to construct an enzymeless glucose sensor on a solid substrate. Sensing and assay performance of the CuNPs-based sensor to glucose were evaluated in detail. Cyclic voltammetry (CV), chronoamperometry (I–t) and flow injection amperometry (FIA) revealed a high sensitivity, excellent stability, and good reproducibility in the glucose determination at +0.45 V, which was 200 mV more negative than those in former reports. A detection limit as low as 1.0×10−8 M (signal-to-noise=3) and a linear range of 1.0×10−7 M to 5.0×10−3 M were obtained in this study.