What is the advantage of green synthesis over chemical synthesis
Answers
What could be real advantage of green synthesis of nanoparticles when precursor is a chemical and catalyst is green material or vice versa. In which way these green substance is effective in bio applications. As per the literatures, these green substance encapsulate nanoparticles [ in other way ] it prevent instant reaction of nanoparticles from surrounding. what will be fate of green substance after reaction leaving behind the nanoparticles. Many papers claim that these green substance reduce toxicity , in which context that toxicity is reduced , whether the toxicity of nanoparticles or toxicity of reaction environment.
Answer:
The nanotechnology and biomedical sciences opens the possibility for a wide variety of biological research topics and medical uses at the molecular and cellular level. The biosynthesis of nanoparticles has been proposed as a cost-effective and environmentally friendly alternative to chemical and physical methods. Plant-mediated synthesis of nanoparticles is a green chemistry approach that connects nanotechnology with plants. Novel methods of ideally synthesizing NPs are thus thought that are formed at ambient temperatures, neutral pH, low costs and environmentally friendly fashion. Keeping these goals in view nanomaterials have been synthesized using various routes. Among the biological alternatives, plants and plant extracts seem to be the best option. Plants are nature’s “chemical factories”. They are cost efficient and require low maintenance. The advantages and disadvantages of nanotechnology can be easily enumerated. This study attempts to review the diversity of the field, starting with the history of nanotechnology, the properties of the nanoparticle, various strategies of synthesis, the many advantages and disadvantages of different methods and its application.