"Turn-Off" Supramolecular Fluorescence Array Sensor for Heavy Metal Ion Identification

被引：11
|
作者：
Wang, Qin [1 ]
Wei, Kai-Ni [1 ]
Huang, Shu-Zhen [1 ]
Tang, Qing [2 ]
Tao, Zhu [1 ]
Huang, Ying [1 ,3 ]
机构：
[1] Guizhou Univ, Key Lab Macrocycl & Supramol Chem Guizhou Prov, Guiyang 550025, Peoples R China
[2] Guizhou Univ, Dept Coll Tobacco Sci, Guiyang 550025, Peoples R China
[3] Guizhou Univ, Natl Educ Minist China, Engn & Res Ctr Southwest Biopharmaceut Resources, Guiyang 550025, Peoples R China
来源：
ACS OMEGA | 2021年 / 6卷 / 46期
基金：
中国国家自然科学基金;
关键词：
CARBON-DOTS; CUCURBITURIL; COMPLEXES;
D O I：
10.1021/acsomega.1c04956
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A "turn-off" supramolecular fluorescence array sensor based on the host-guest complexes between fluorescence dyes and cucurbit[n]urils for sensing metal ions was developed. Three fluorescent probes (RhB@Q[7], H33342@2Q[7], and BRE@ Q[7]) were used as the sensing units to construct a supramolecular fluorescence array sensor. The binding ability of the metal ions and cucurbituril-dye probes varied; therefore, the probes and metal ions produced different fluorescence responses. When combined with linear discriminant analysis (LDA), the qualitative and quantitative detection of seven metal ions was achieved. In analytical samples, the supramolecular fluorescence array sensor recognized and distinguish seven metal ions. These results provided new research ideas for the rapid analysis and real-time monitoring of different heavy metal ions.
引用
收藏
页码：31229 / 31235
页数：7
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