A new aggregation-induced emission-based fluorescent probe for effective detection of Hg^(2+)and its multiple applications  

作　　者：Yongxin Pan Yuetian Guo Ying Li Lijun Tang Xiaomei Yan 

机构地区：[1]College of Chemistry and Materials Engineering,Bohai University,Jinzhou 121013,China [2]Department of Chemistry,National Demonstration Center for Experimental Chemistry Education,Yanbian University,Yanji 133002,China [3]College of Laboratory Medicine,Dalian Medical University,Dalian 116044,China

出　　处：《Chinese Chemical Letters》2023年第12期466-469,共4页中国化学快报（英文版）

基　　金：funded by the National Natural Science Foundation of China(Nos.22278038,21878023),the Program for Distinguished Professor of Liaoning Province.

摘　　要：Detection of mercury ions(Hg^(2+))in actual samples is of significant importance due to the toxicity of Hg^(2+)to human health.In this work,a simple tetraphenylethene(TPE)derived fluorescent probe TPE-Hg based on aggregation-induced emission(AIE)mechanism was synthesized.TPE-Hg can visually recognize Hg^(2+)in THF/HEPES(1:9,v/v,HEPES 20 mmol/L,pH 7.3)system with rapid response,strong anti-interference ability,large Stokes shift(203 nm),and low detection limit(7.548×10^(-7)mol/L).The results show that Hg^(2+)triggered elimination of TPE-Hg lead to releasing of an AIE-active compound 2 is responsible to the sensing mechanism.TPE-Hg is applicable to detect Hg^(2+)in actual water samples and image Hg^(2+)in living MCF-7 cells.In addition,TPE-Hg is suitable to assay the Hg^(2+)level in seafood and tea samples,and it is alsoapplicable intest strips.

关 键 词：Aggregation-induced emission Fluorescent probe Food samples Cell imaging Hg(Ⅱ) 

分 类 号：TS207.3[轻工技术与工程—食品科学] O657.3[轻工技术与工程—食品科学与工程]