Stable fluorescent gold nanoparticles for detection of Cu ²⁺ with good sensitivity and selectivity

2011/11/03 by Yongming Guo, Zhuo Wang, Huawu Shao +1 · 7 citations
Materials Science · Biochemistry, Genetics and Molecular Biology · #Nanocluster Synthesis and Applications #Gold and Silver Nanoparticles Synthesis and Applications #Advanced biosensing and bioanalysis techniques

paper · doi:10.1039/c1an15877e

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.

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