LARVICIDAL ACTIVITY OF BIOSYNTHESIZED GOLD AND SILVER NANOPARTICLES USING ETHANOLIC EXTRACT OF Achillea santolina L. AGAINST Aedes aegypti

Biosynthesis of noble metallic nanoparticles (NPs) in mosquito control programme has attracted significant interest due to their environmental friendly and biocompatible properties. In this study, we investigated the syntheses of gold and silver NPs using plant extracts of Achillea santolina L., which demonstrated good metal-reducing ability. The obtained NPs were characterized and analyzed by various spectroscopy techniques. The morphology of AsAgNPs and AsAuNPs exhibited spherical morphology with average sizes of 70-80 nm and 95-100 nm, respectively. As-AuNPs NPs showed high larvicidal toxicity compared with fourth instar larvae of A. aegypti. The biocompatible Au or Ag NPs can be applicable to future larvicides to control mosquito species.