A Highly Sensitive Electrochemical Sensor Based on β-cyclodextrin Functionalized Multi-Wall Carbon Nanotubes and Fe3O4 Nanoparticles for Rutin Detection

被引：8
作者：
Zhao, Wen-Jun [1 ]
Xiao, Bao-Lin [1 ]
Song, Xin-Yan [1 ]
Meng, Xin [1 ]
Ma, Xin-Xin [1 ]
Li, Yang-Yang [1 ]
Hong, Jun [1 ]
Moosavi-Movahedi, Ali Akbar [2 ]
机构：
[1] Henan Univ, Sch Life Sci, Kaifeng 475000, Peoples R China
[2] Univ Tehran, Inst Biochem & Biophys, Tehran, Iran
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2022年 / 169卷 / 04期
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
COMPOSITE ELECTRODE; GRAPHENE; FLAVONOIDS; ACID; NANOCOMPOSITES; EXTRACTION; BIOSENSOR; PEROXIDASE; SEPARATION; REMOVAL;
D O I：
10.1149/1945-7111/ac61bf
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A functionalized nanocomposites composed of multi-wall carbon nanotubes (MWCNTs), Fe3O4 nanoparticles (Fe3O4) and beta-cyclodextrin (CD) was prepared. The MWCNTs-CD-Fe3O4 modified glassy carbon electrode (GCE) displayed good electrochemical response towards rutin (Ru). The detection linear range and the detection limit of the electrochemical sensor for Ru were 0.02-10 mu M and 16.4 nM, respectively. The results of actual sample detection were consistent with those of ultra-high performance liquid chromatography (UHPLC). The modified materials were also analyzed by UV-visible spectroscopy (UV-Vis)?transmission electrode microscope (TEM), and electrochemical impedance spectroscopy (EIS), respectively. The prepared nanocomposites integrate the excellent electric conductivity and electrocatalytic activity of MWCNTs and Fe3O4, as well as the disperse ability of CD, and may play a synergistic role in the electrochemical response of the modified electrode towards Ru. Moreover, the prepared sensor had good anti-interference ability and potential application in the actual content detection of drugs.
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页数：8
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