An aggregation induced emission enhancement-based ratiometric fluorescent sensor for detecting trace uranyl ion (UO22+) and the application in living cells imaging

被引：29
作者：
Chen, Xiaotong [1 ]
Peng, Lu [2 ]
Feng, Mengli [2 ]
Xiang, Yu [2 ]
Tong, Aijun [2 ]
He, Linfeng [1 ]
Liu, Bing [1 ]
Tang, Yaping [1 ]
机构：
[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Collaborat Innovat Ctr Adv Nucl Energy Technol, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2017年 / 186卷
基金：
中国国家自然科学基金;
关键词：
Uranyl ion; Schiff base; Aggregation induced emission; enhancement; Ratiometric fluorescent chemosensor; AQUEOUS-SOLUTION; URANIUM; NITRATE;
D O I：
10.1016/j.jlumin.2017.02.019
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A ratiometric fluorescence detection method for trace amount of uranyl ion (UO22+) was developed in this study, based on aggregation induced emission enhancement (AIEE) characteristics of 3-hydroxyflavone salicylaldehyde azine (HFSA) and luminescent signal of UO22+-HFSA complex in soluble state. The fluorescent ratio (l(457)/l(534)) was linearly related to the concentration of UO22+ in the range of 0.5-20 ppb (part per billion). Analytical data showed that a detection limit of 0.5 ppb was achieved with the relative standard deviation (R.S.D.) 13% (n=5). The proposed method could also be utilized for imaging UO22+ in living cells by ratiometric fluorescence changes. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：301 / 306
页数：6
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