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Stable fluorescent gold nanoparticles for detection of Cu2+ with good sensitivity and selectivity
Yongming Guo1, Zhuo Wang, Huawu Shao
1Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China.
The Analyst
|November 4, 2011
Abstract:
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.
