Investigation of antibacterial properties silver nanoparticles prepared via green method

摘要

Background This study aims to investigate the influence of different stirring times on antibacterial activity of silver nanoparticles in polyethylene glycol (PEG) suspension. The silver nanoparticles (Ag-NPs) were prepared by green synthesis method using green agents, polyethylene glycol (PEG) under moderate temperature at different stirring times. Silver nitrate (AgNO3) was taken as the metal precursor while PEG was used as the solid support and polymeric stabilizer. The antibacterial activity of different sizes of nanosilver was investigated against Gram鈥損ositive [Staphylococcus aureus] and Gram鈥搉egative bacteria [Salmonella typhimurium SL1344] by the disk diffusion method using M眉eller鈥揌inton Agar.