Research Article
Green Synthesis of Fluorescent Ag Nanoclusters for Detecting Cu2+ Ions and Its “Switch-On” Sensing Application for GSH
Figure 5
(a) Fluorescence response of the Ag NCs upon addition of different concentrations of Cu2+ from bottom to top: 0.1 × 10−12 M, 1 × 10−11 M, 1 × 10−10 M, 1 × 10−9 M, 1 × 10−8 M, 1 × 10−7 M, and 1 × 10−6 M. (b) The linear calibration ranges of the fluorescence intensity ratio to Cu2+ concentrations.
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