Highly efficient enzyme immobilization by nanocomposites of metal organic coordination polymers and carbon nanotubes for electrochemical biosensing

文献类型： 外文期刊

第一作者： Xu, Xiahong

作者： Xu, Xiahong;Wang, Xinquan;Wang, Xiangyun;Wang, Qiang;Yang, Hua;Fu, Yingchun;Qi, Xin;Yao, Shouzhuo

作者机构：

关键词： Metal-organic coordination polymers;Multi-walled carbon nanotubes;Nanocomposites;Electrochemical biosensing;Glucose oxidase

期刊名称：ELECTROCHEMISTRY COMMUNICATIONS （ 影响因子：4.724； 五年影响因子：4.898 ）

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年卷期：

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收录情况： SCI

摘要： New nanocomposites with multi-walled carbon nanotubes (MWCNTs) embedded in metal-organic coordination polymers (MOCPs) were successfully prepared as highly efficient matrices of enzyme immobilization for sensitive electrochemical biosensing. NaAuCl4 was pre-adsorbed on the MWCNTs to act as anchor sites to further coordinate with ligand benzenedithiol and form MOCPs. The formation of MWCNTs-MOCPs one-pot entrapped glucose oxidase (GOx) with a ratio close to 100% and exhibited enhanced mass-transfer over MOCPs. Thus MWCNTs-MOCPs-modified electrodes present superior enzymatic catalysis performance of greatly enhanced sensitivity (136 mu A cm(-2) mM(-1)) and magnitudes-lower detection limit (48 nM), being superior to most analogues.

分类号： O64

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