Biofabrication of Ag nanoparticles using Moringa oleifera leaf extract and their antimicrobial activity.

OBJECTIVE To formulate a simple rapid procedure for bioreduction of silver nanoparticles using aqueous leaves extract of Moringa oleifera (M. oleifera). METHODS 10 mL of leaf extract was mixed to 90 mL of 1 mM aqueous of AgNO3 and was heated at 60 - 80 °C for 20 min. A change from brown to reddish color was observed. Characterization using UV-Vis spectrophotometry, Transmission Electron Microscopy (TEM) was performed. RESULTS TEM showed the formation of silver nanoparticles with an average size of 57 nm. CONCLUSIONS M. oleifera demonstrates strong potential for synthesis of silver nanoparticles by rapid reduction of silver ions (Ag(+) to Ag(0)). Biological methods are good competents for the chemical procedures, which are eco-friendly and convenient.