1 Department of Chemistry, The MOE Key Laboratory of Analytical Science, Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China.
A new fluorescence sensor for the highly selective detection of Cu2+ ion with a detection limit of 3.6 nM based on the aggregation-induced fluorescence quenching of the highly fluorescent glutathione-capped gold nanoparticles is reported.