A Nonenzymatic Glucose Sensor Based on Layer by layer Self-assembly of NiAl-layered Double Hydroxide and Polyelectrolyte

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A Nonenzymatic Glucose Sensor Based on Layer by layer Self-assembly of NiAl-layered Double Hydroxide and Polyelectrolyte

- A Nonenzymatic Glucose Sensor Based on Layer by layer Self-assembly of NiAl-layered Double Hydroxide and Polyelectrolyte
- Vol. 31, Issue 2, Pages: 190-194(2012)
- 作者机构：
  
  华东交通大学基础学院化学化工系
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A Nonenzymatic Glucose Sensor Based on Layer by layer Self-assembly of NiAl-layered Double Hydroxide and Polyelectrolyte. [J]. 31(2):190-194(2012)
DOI：

A Nonenzymatic Glucose Sensor Based on Layer by layer Self-assembly of NiAl-layered Double Hydroxide and Polyelectrolyte. [J]. 31(2):190-194(2012) DOI：

摘要

采用共沉淀法合成了镍铝水滑石(NiAl-LDH)，将NiAl-LDH与聚苯乙烯磺酸钠(PSS)通过层层自组装法构筑了PSS/NiAl-LDH多层膜电极，并将其用于葡萄糖分析。X射线衍射光谱、红外光谱和SEM结果表明：共沉淀法合成的NiAl-LDH具有典型的水滑石特征峰及形貌。紫外-可见光谱表明：NiAl-LDH可与PSS均匀有效地组装构筑多层膜。电化学研究表明：NiAl-LDH修饰电极能有效地催化氧化葡萄糖。该传感器对葡萄糖在5.0×10-7~6.6×10-4 mol/L范围内呈良好的线性响应，灵敏度为8.9×10-4 A?L?mol-1，检出限(S/N=3)为2.8×10-7 mol/L。

Abstract

The nickel aluminium layered double hydroxides(NiAl-LDH) were synthesized by coprecipitation method.With the layer by layer(LBL) self-assembly of polystyrene sulfonate sodium(PSS) and NiAl-LDH，the PSS/NiAl-LDH multilayer electrode was constructed，and applied in the determination of glucose.The X-ray diffraction，Infrared and SEM spectra of NiAl-LDH showed that it had the typical LDH characteristic peaks and morphology.The UV-Vis spectrum was used to monitor the uniform LBL self-assembly of PSS and NiAl-LDH.Electrochemical study showed that glucose could be effectively catalyzed oxidation with NiAl-LDH mutlitlayer electrode.Under the optimal conditions，the sensor showed a good linear relationship in the range of 5.0×10-7-6.6×10-4 mol/L for glucose with a sensitivity of 8.9×10-4A?L?mol-1 and a detection limit(S/N=3) of 2.8×10-7 mol/L.

关键词

镍铝水滑石无酶法葡萄糖层层自组装电极

Keywords

nickel aluminium layered double hydroxidenonenzymatic methodglucoselayer by layer self-assemblyelectrode

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School of Chemical and Material Engineering，Jiangnan University

Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology，Colleges and Universities Key Laboratory for Efficient Use of Agricultural Resources in the Southeast of Guangxi，College of Chemistry and Food Science，Yulin Normal University

College of Chemical Engineering，Fuzhou University

College of Materials and Chemical Engineering，Minjiang University

High & New Technology Research Center of Henan Academy of Science

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