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

摘要

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.