Among different methods to synthesize silver nanoparticles (SNPs), the biological method has been the most extensively investigated. This study presents a facile and rapid method for biosynthesis of silver nanoparticles from Weld (Reseda Luteola L.) as a natural dye. An aqueous extract of the dye was used as a reducing agent for silver ions. The: evaluation of these nanoparticles was made by various methods. The formation and growth of the nanoparticles were studied using UV-Vis absorption spectroscopy, while their shape, size and morphologies were monitored by transmission electron microscopy (TEM). Moreover, the influence of the dye amount to silver ratio and contact time were evaluated to find their effects on synthesis' efficacy. Size distribution of SNPs were evaluated by means of Dynamic light scattering (DLS) measurements. Antibacterial potential of biosynthesized SNPs was investigated.
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|Published - 2013