Effect of different polymers on morphology and particle size of silver nanoparticles synthesized by modified polyol method

Abstract In this work, simple, economic, eco-friendly modified method with high efficiency was applied for synthesis of silver nanoparticles (Ag NPs) by using polyethylene glycol (PEG) as a capping agent, reductant, and media agent. In order to preparation uniform and small Ag NPs, the reaction parameters such as type of polymer, AgNO 3 /Polymer weight concentration ratio, and AgNO 3 /NaBH 4 molar concentration ratio were modified. The best condition was optimized in concentration ratio of AgNO 3 : PEG: NaBH 4 where are 1:10:0.01, respectively with 82% efficiency and 98.95% purity. Therefore, this modified polyol method can also be scaled up for synthesis of Ag NPs appropriately. Due to polymeric coating on the Ag NPs, they can be employed as a promising candidate for drug delivery systems.