You want to know about the effect of nanoparticle synthesis using plant extracts.
Replacing chemical reducing agents, such as hydrazine hydrate, with reducing agents present in plant extracts is perceived by many as a solution to an environmental problem. But I draw attention to the following.
1. Nanoparticles are obtained in small quantities. Plant extracts after synthesis also need to be disposed of.
2. Such nanoparticles are best used in medicine, since a reducing agent, such as rutin, if it remains on the surface of the nanoparticles does not need to be additionally purified and they will be less toxic to the body compared to those obtained with hydrazine hydrate.