Electrochemical sensor for rutin detection based on Au nanoparticle-loaded helical carbon nanotubes |
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| Authors: | Haitang?Yang Bingyue?Li Rongjing?Cui Email author" target="_blank">Ruimin?XingEmail author Email author" target="_blank">Shanhu?LiuEmail author |
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| Institution: | 1.Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering,Henan University,Kaifeng,People’s Republic of China;2.Henan Joint International Research Laboratory of Environmental Pollution Control Materials, College of Chemistry and Chemical Engineering,Henan University,Kaifeng,People’s Republic of China;3.Jiangsu Laboratory of Advanced Functional Materials, Department of Chemistry and Materials Engineering,Changshu Institute of Technology,Changshu,China |
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| Abstract: | The key step in the fabrication of highly active electrochemical sensors is seeking multifunctional nanocomposites as electrode modified materials. In this study, the gold nanoparticle-decorated helical carbon nanotube nanocomposites (AuNPs-HCNTs) were fabricated for rutin detection because of its superior sensitivity, the chemical stability of AuNPs, and the superior conductivity and unique 3D–helical structure of helical carbon nanotubes. Results showed the prepared nanocomposites exhibited superior electrocatalytic activity towards rutin due to the synergetic effects of AuNPs and HCNTs. Under the optimized conditions, the developed sensor exhibited a linear response range from 0.1 to 31 μmol/L for rutin with a low detectable limit of 81 nmol/L. The proposed method might offer a possibility for electrochemical analysis of rutin in Chinese medical analysis or serum monitoring owing to its low cost, simplicity, high sensitivity, good stability, and few interferences against common coexisting ions in real samples. |
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