Guanidinocalix[5]arene for sensitive fluorescence detection and magnetic removal of perfluorinated pollutants

被引:146
作者
Zheng, Zhe [1 ]
Yu, Huijuan [2 ]
Geng, Wen-Chao [1 ]
Hu, Xin-Yue [1 ]
Wang, Yu-Ying [1 ]
Li, Zhihao [1 ]
Wang, Yuefei [2 ]
Guo, Dong-Sheng [1 ]
机构
[1] Nankai Univ, Coll Chem, State Key Lab Elemento Organ Chem, Key Lab Funct Polymer Mat,Minist Educ, Tianjin 300071, Peoples R China
[2] Tianjin Univ Tradit Chinese Med, Inst Tradit Chinese Med, Tianjin 301617, Peoples R China
关键词
PERFLUOROALKYL SUBSTANCES PFASS; PERFLUOROOCTANOIC ACID PFOA; FILM-FORMING FOAMS; POLYFLUOROALKYL SUBSTANCES; INCLUSION COMPLEXES; BETA-CYCLODEXTRIN; DRINKING-WATER; SULFONATE; ENVIRONMENT; DISCOVERY;
D O I
10.1038/s41467-019-13775-1
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Perfluorinated alkyl substances, such as perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), are toxic materials that are known to globally contaminate water, air, and soil resources. Strategies for the simultaneous detection and removal of these compounds are desired to address this emerging health and environmental issue. Herein, we develop a type of guanidinocalix[5]arene that can selectively and strongly bind to PFOS and PFOA, which we use to demonstrate the sensitive and quantitative detection of these compounds in contaminated water through a fluorescent indicator displacement assay. Moreover, by co-assembling iron oxide nanoparticle with the amphiphilic guanidinocalix[5]arene, we are able to use simple magnetic absorption and filtration to efficiently remove PFOS and PFOA from contaminated water. This supramolecular approach that uses both molecular recognition and self-assembly of macrocyclic amphiphiles is promising for the detection and remediation of water pollution.
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页数:9
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