Visual colorimetric detection of UO22+ using o-phosphorylethanolamine-functionalized gold nanoparticles

被引：28
作者：
Cao, Xiao-Hong [1 ,2 ]
Zhang, Hao-Yan [2 ]
Ma, Ru-Chao [2 ]
Yang, Qian [2 ]
Zhang, Zhi-Bin [1 ,2 ]
Liu, Yun-Hai [1 ,2 ]
机构：
[1] E China Inst Technol, State Key Lab Breeding Base Nucl Resources & Envi, Nanchang 330013, Peoples R China
[2] E China Inst Technol, Chem Biol & Mat Sci Dept, Nanchang 330013, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2015年 / 218卷
基金：
中国国家自然科学基金;
关键词：
Visual colorimetric sensing; o-Phosphorylethanolamine; Gold nanoparticles; Uranium; MICELLE-MEDIATED EXTRACTION; SPECTROPHOTOMETRIC DETERMINATION; AQUEOUS-SOLUTIONS; WATER SAMPLES; URANIUM; PROBE; ASSAY; PH;
D O I：
10.1016/j.snb.2015.04.081
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A simple and selective colorimetric sensor based on o-phosphorylethanolamine-functionalized gold nanoparticles (OPA-Au NPs) as an optical probe has been developed for the detection of UO22+. OPA-Au NPs rapidly aggregate in the presence of UO22+, thereby causing a visual color change from red to blue, which is easily detectable by eye. The proposed sensing system possesses a selective response for UO22+ over other heavy metal ions. The current method shows application potential for UO22+ detection in real water samples. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：67 / 72
页数：6
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