Green synthesis of nanoparticles and their characterization

Abstract

In the 21 st decade, nanotechnology is back bone of research. These
nanoparticles have special attention in the all area of world. The particle
structures manipulation rang from 1-100nm and has high properties can
be synthesis by different methods. Today, the biosynthesis of
nanoparticles are the most favourite one, non- toxic and safe.
In the biological synthesis of deferent nanoparticles. We using bacteria,
viruses, fungi and plants, but the last one is the most widespread in the
studies for the research, because plant extracts are full of bioactive
compounds such as ketones, aldehydes, polyphenols, caffeine, and
carbohydrates .These compound are effective in reduction which
facilitate the synthesis reaction for manufacturing nanoparticles.
After synthesized the nanoparticles, were characterizing her details like
shape, size,homogenity ,surface morphology … by using various
techniques as UV–Vis absorption spectroscopy-ray diffraction )XRD),
Fourier trans mission infrared (FTIR) spectroscopy, dynamic light
scattering (DLS), scanning electron microscopy (SEM) and trans mission
electron microscopy (TEM).
So, this biological way do not need the toxic chemicals, it is safe, eco-
friendly and low cost. Furthermore, NPs synthesized via green route are
more stable and effective in comparison with those produced by
physico–chemical method.