材料科学
碳纳米管
纳米复合材料
检出限
生物传感器
纳米技术
纳米颗粒
基质(水族馆)
电极
化学工程
催化作用
微球
纳米结构
化学
色谱法
有机化学
物理化学
工程类
地质学
海洋学
作者
Fang Wang,Fengna Shi,Jingfang Li,Naipin Chen,Cheng Chen,Ziqi Xu,Jiajun Wang
标识
DOI:10.1016/j.microc.2023.109054
摘要
It is extremely important to simultaneously detection different biomarkers in various biological systems. Hereby, we have developed an original flexible nonenzymatic glucose and uric acid sensor using carbon cloth loaded with copper microspheres (Cu MSs) and ZnO nanoparticles decorated single-walled carbon nanotubes (Cu MSs/ZnO@CNTs/CC). Firstly, ZnO@CNTs was synthesized via sol–gel method, and then Cu MSs were uniformly electrodeposited on ZnO@CNTs/CC substrate rapidly. Morphological and compositional characteristics were examined to confirm the successful decoration of Cu microspheres and ZnO nanoparticles. Importantly, the nanocomposite electrode displayed remarkable electrocatalytic activity for glucose and UA, including wide linear detection range, low detection limit, outstanding sensitivity, respectively. Moreover, the nanostructure biosensor exhibited fast response time (0.1 s) and favorable long-term stability, which are attributed to synergistic catalytic effects: (a) the large specific surface area of CNTs offered abundant sites for the decoration of ZnO nanoparticles, and (b) the rough nanosheets assembled Cu microspheres could expose plentiful active sites. Finally, in practical serum samples, the sensor also exhibits considerably favorable precision and accuracy. As such, the novel flexible Cu MSs/ZnO@CNTs/CC sensor developed with economical and efficient preparation method provided a new easy and sensitive platform for glucose and UA determination in real application.
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