Synthesis of Silver Nanoparticles Using Three Marine Macro Algae from the Persian Gulf

The development of ecofriendly and non-toxic process for synthesis of silver nanoparticles is a great concern in the field of nanotechnology. In the present study, a reliable approach for the synthesis of AgNPs was investigated using the aqueous extract of three marine macroalgae, Ulva flexuosa (Chlorophyta), Colpomenia sinuosa (Phaeophyceae) and Gracilariopsis persica (Rhodophyta). The complete reduction of silver ions was observed after 24 h of reaction at 25°C. The formation of Ag-NPs was analysized by UVVis spectrum, Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM) and Xray diffraction (XRD). Our finding demonstrated that U. flexuosa, C. sinuosa and G. persica have the potential of silver nanoparticles production in a media containing AgNO3 at room temperature.