Amperometric glucose biosensor based on NiFe2O4 nanoparticles and chitosan
Amperometric glucose biosensor based on NiFe2O4 nanoparticles and chitosan
复制标题
基于 NiFe2O4 纳米粒子和壳聚糖的电流式葡萄糖生物传感器
DOI：
10.1016/j.snb.2009.12.018
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发表时间：
2010-03
期刊：
影响因子：
--
通讯作者：
Xu, Yinjuan1
中科院分区：
文献类型：
--
作者：
Luo, Liqiang1;Li, Qiuxia1;Xu, Yanhong1;Ding, Yaping1;Wang, Xia1;Deng, Dongmei1;Xu, Yinjuan1
将葡萄糖氧化酶(GOx)与壳聚糖/NiFe2O4纳米粒子(CHIT/NiFe2O4NPs)复合在玻碳电极上，制备了一种新型的葡萄糖生物传感器。用X射线衍射仪、扫描电子显微镜、紫外-可见光谱、傅里叶变换红外光谱和交流阻抗谱对CHIT/NiFe2O4NPs/Gox的性能进行了表征。用循环伏安法研究了CHIT/NiFe2O4NPs/Gox修饰的GCE在二茂铁羧酸作为人工氧化还原介体时对葡萄糖氧化的电催化性能。详细研究和优化了影响传感器分析性能的各种参数，包括GOx浓度、工作电位和支持电解质的pH值。该生物传感器用于葡萄糖的检测，线性范围为1×10−4~2.0×10−2molL−1。该传感器对葡萄糖具有良好的检测性能，在外加电压为0.6V时响应时间为4s。
A novel glucose biosensor was fabricated by integrating glucose oxidase (GOx) with chitosan/NiFe2O4nanoparticles (CHIT/NiFe2O4NPs) on a glassy carbon electrode (GCE). The properties of CHIT/NiFe2O4NPs/GOx were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), UV–vis spectroscopy, Fourier transform infrared spectroscopy (FTIR) and electrochemical impedance spectroscopy (EIS). The GCE modified with the CHIT/NiFe2O4NPs/GOx showed excellent electrocatalytical response to the oxidation of glucose when ferrocene carboxylic acid was used as an artificial redox mediator, which was studied by cyclic voltammetry (CV). Different parameters including GOx concentration, working potential and pH of supporting electrolyte that governed the analytical performance of the biosensor, have been studied in detail and optimized. The biosensor was applied to detect glucose with a linear range of 1×10−4–2.0×10−2molL−1. The biosensor exhibited excellent performance for glucose at applied potential of 0.6V with a fast response time (<4s).
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影响因子：
5.4
作者：
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通讯作者：
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影响因子：
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影响因子：
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