Majid Halimi - Department of chemistry, Kosar University of Bojnord, Iran.
Malihe Nasrabadi - Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷ Tehran, Iran.
Neda Rohani - Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷ Tehran, Iran.
Neda Soleamani - Department of Chemistry, Isfahan Education Organization, Iran

Today, nanotechnology is widely used in Science and technology are growing rapidly. Nanoparticles synthesized with the help of plant extracts, due to the lack of use of external chemical agents, can have fewer side effects in medical applications.In this article, we synthesize silver nanoparticles (AgNPs) using the aqueous extract of Stachys lavandulifolia vahl. Plant extract in the synthesis of nanoparticles acts as a reducing and stabilizing agent and can also have fewer side effects in medical use and is environmentally friendly. The average size of nanosilver synthesized by this method is ۶۸-۶۹ nm and factors such as temperature, concentration, pH and time were investigated to optimize the reaction. Formation of silver nanoparticles was confirmed by UV–Vis spectroscopy, Energy Dispersive Spectroscopy (EDS) analysis , X-ray diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM)

Stachys lavandulifolia vahl, Green synthesis, Silver nanoparticles, Biosynthesis