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. 2014 Jun 14;9(1):302. doi: 10.1186/1556-276X-9-302

Figure 1.

Figure 1

SEM images of the flower-like Ag nanostructures. SEM images of the flower-like Ag nanostructures prepared with PVP and different amounts of catalyzing agent NH3•3H2O: (A) 200 μL, (B) 400 μL, (C) 600 μL, and (D) 800 μL.