Biosynthesised silver nanoparticles using aqueous leaf extract of Tagetes patula L. and evaluation of their antifungal activity against phytopathogenic fungi.

摘要: In the recent decades, nanotechnology is gaining tremendous impetus due to its capability of modulating metals into their nanosize, which drastically changes chemical, physical, biological and optical properties metals. this study, silver nanoparticles (AgNPs) synthesis using aqueous leaf extracts Tagetes patula L. act as reducing agent well capping reported. Synthesis AgNPs was observed at different parameters like temperature, concentration nitrate, extract time reduction. The were characterized UV-vis spectroscopy, scanning electron microscope with energy dispersive transmission microscopy selected area diffraction, X-ray Fourier transform infrared dynamic light scattering analysis. These analyses revealed size ranging from 15 30 nm spherical shape cubic hexagonal lattice structure. lower zeta potential (−14.2mV) FTIR spectra indicate that synthesized are remarkably stable for a long period capped biomolecules on surface nanoparticles. Furthermore, these found be highly toxic against phytopathogenic fungi Colletotrichum chlorophyti by both in vitro vivo might safer alternative chemical fungicides.