Figure 1From: Synthesis of silver nanoparticles using reducing agents obtained from natural sources (Rumex hymenosepalus extracts)Visual appearance of vials containing the Rumex hymenosepalus extract and AgNO 3 solution after different reaction times. The vials correspond to different AgNO3 concentrations: (a) pure extract, (b) 2.5 mM, (c) 5 mM, (d) 7.5 mM, (e) 10 mM, and (f) 15 mM. The change in color is an indication of the growth of silver nanoparticles.Back to article page