Biosynthesized Silver Nanoparticles Used in Preservative Solutions for Chrysanthemum cv. Puma

Figure 2

UV-Vis spectrum of Ag nanoparticles synthesized with 5 mL C. ambrosioides extra and 10 mM AgNO₃. Inserts (a) and (b) show the extract before and after reduction, respectively, and (c) shows system setting time.