β-Cyclodextrin-Functionalized Silver Nanoparticles for the Naked Eye Detection of Aromatic Isomers
β-Cyclodextrin-Functionalized Silver Nanoparticles for the Naked Eye Detection of Aromatic Isomers
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DOI：
10.1021/nn1016605
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发表时间：
2010-11-01
期刊：
影响因子：
17.1
通讯作者：
Zhang, Qijin
中科院分区：
文献类型：
--
作者：
Chen, Xin;Parker, Stephen G.;Zhang, Qijin
我们在此报告了一种高度稳健、定量、灵敏、一种利用β-CD修饰的银纳米粒子（AgNPs）对芳香族化合物不同异构体的肉眼比色检测方法探针该测定依赖于Ag纳米颗粒的距离依赖性光学性质兰德芳香族客体与β CD主体的不同包合物结合强度。迅速诱导聚集，芳香族化合物的不同异构体的种类和浓度可以通过用肉眼或紫外-可见光谱仪监测来确定。目前对芳香族化合物的不同异构体的检测限为5 × 10（-5）M。客体识别将适用于水介质中的一系列化学和生物分析分子传感系统
We report herein the development of a highly robust, quantitative, sensitive, and naked eye colorimetric detection method for different isomers of aromatic compound using beta CD modified silver nanoparticle (AgNPs) probes This assay relies on the distance dependent optical properties of Ag nanoparticles rand the different Inclusion binding strength tithe aromatic guests to beta CD host In the presence of different isomers of aromatic compounds AgNPs could be rapidly Induced to aggregate, thereby resulting In apricot to-red color change The variety and concentration of different isomers of aromatic compounds could be determined by monitoring with the naked eye or a UV-vis spectrometer The present detection limit for different isomers of aromatic compounds is 5 x 10(-5) M We believe that the surface architectures of AgNps after the introduction of the CD based host-guest recognition would be applicable for a range of chemical and bioanalytical molecular sensing systems in aqueous media