Fluorescent Gold Nanoclusters: Synthesis and Recent Biological Application

Figure 9

Relative fluorescence intensities at 631 nm of solutions of Lys VI-AuNCs after the addition of (a) Hg²⁺ (100 nM), CH₃Hg⁺ (100 nM), and other metal ions (50 μM) and (b) anions (50 μM). The excitation wavelength was set to 400 nm. The incubation time was 10 min. It should be noted that and are the fluorescence intensities of the AuNCs before and after adding analytes, respectively. Reprinted with permission from [54], ©2010, Analytical Chemistry.

(a)

(b)