Fluorescent Gold Nanoprobes for the Sensitive and Selective Detection for Hg²⁺

• Main Authors: Chai Fang, Wang Tingting, Li Lu, Liu Haiyan, Zhang Lingyu, Su Zhongmin, Wang Chungang
• Format: Article
• Language: English
• Published: SpringerOpen 2010-01-01
• Series: Nanoscale Research Letters
• Subjects: Mercury(II) ion; BSA; Gold nanoprobes; Fluorescent; Detection
• Online Access: http://dx.doi.org/10.1007/s11671-010-9730-y
• ISSN: 1931-7573; 1556-276X

<p>Abstract</p> <p>A simple, cost-effective yet rapid and sensitive sensor for on-site and real-time Hg²⁺ detection based on bovine serum albumin functionalized fluorescent gold nanoparticles as novel and environmentally friendly fluorescent probes was developed. Using this probe, aqueous Hg²⁺ can be detected at 0.1 nM in a facile way based on fluorescence quenching. This probe was also applied to determine the Hg²⁺ in the lake samples, and the results demonstrate low interference and high sensitivity.</p>