Figure 2.

(A) Ultraviolet-visual absorption spectrum of Ag-nanoparticles-plant extract prepared at 90°C. (B) Digital photograph of the aqueous solutions of (i) AgNO₃ solution without addition of plant extract. (ii) AgNO₃ with the addition of plant extract and pure plant extract solution with 0.1 g/mL concentration. i and ii were recorded after 72 hours.