Stable fluorescent gold nanoparticles for detection of Cu2+ with good sensitivity and selectivity

被引:121
作者
Guo, Yongming [1 ,2 ,3 ]
Wang, Zhuo [1 ]
Shao, Huawu [2 ]
Jiang, Xingyu [1 ]
机构
[1] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China
[3] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
基金
美国国家科学基金会;
关键词
QUANTUM DOTS; COPPER IONS; NANOCLUSTERS; LUMINESCENT; CLUSTERS; COMPLEXES; NANODOTS; HG2+;
D O I
10.1039/c1an15877e
中图分类号
O65 [分析化学];
学科分类号
070302 [分析化学];
摘要
A simple and one-pot method for the synthesis of water-soluble, red-emitting, highly fluorescent gold nanoparticles has been reported using 11-mercaptoundecanoic acid (11-MUA) as the protecting group. We found that the fluorescent gold nanoparticles could selectively detect copper ions in aqueous solution, with a limit of detection of about 87 nM.
引用
收藏
页码:301 / 304
页数:4
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