【作者】 杨丽特； 许冰洁； 张碧红； 赵发琼； 曾百肇；

【Author】 Lite Yang;Bingjie Xu;Bihong Zhang;Faqiong Zhao;Baizhao Zeng;Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University;

【机构】 武汉大学化学与分子科学学院；

【摘要】 采用电聚合方法在Au NPs/Graphene-carbon nanotubes/ILs复合材料修饰的玻碳电极上制备了白藜芦醇分子印迹电化学传感器。由一步水热法制得的Au NPs/Graphene-carbon nanotubes/ILs复合材料,颗粒细小的Au NPs均匀地分散在具有三维结构的Graphene-carbon nanotubes碳材料上,ILs的存在提高了Au NPs/Graphene-carbon nanotubes在水相环境的分散性,且增大了该复合材料的电化学窗口。在这种复合材料修饰的玻碳电极上,以3-氨基苯硼酸和苯胺为功能单体,白藜芦醇为模板分子,在酸性条件下制得白藜芦醇分子印迹电化学传感器。Au NPs/Graphene-carbon nanotubes/ILs有效提高了该传感器的灵敏度,同时白藜芦醇分子印迹膜大大提高了传感器的选择性,因此,它能用于实际样品中白藜芦醇的快速灵敏检测。更多还原

【Abstract】 A novel resveratrol imprinted electrochemical sensor was fabricated via electropolymerization method on a Au nanoparticles-graphene-carbon nanotubes-ion liquids composite(Au NPs/GN-CNTs-ILs) modified glassy carbon electrode(GCE).The Au NPs/GN-CNTs-ILs composite was prepared through a facile one-pot hydrothermal method, and ultra fine Au NPs was scattered on the three dimensional GN-CNTs carbon skeleton.The doped ILs improved the dispersibility of Au NPs/GN-CNTs in aqueous solution and also enhanced its electrochemical stability.The sensor was prepared by electropolymerization of 3-aminophenylboronic acid and aniline on the Au NPs/GN-CNTs-ILs/GCE in acidic solution.Based on the synergistic effect of the Au NPs/GN-CNTs-ILs composite and the molecularly imprinted poly(3-aminophenylboronic acid-co-aniline), the resulting electrochemical sensor presented high sensitivity and selectivity.Thus, it could be applied to the rapid and sensitive detection of resveratrol in real samples.更多还原