ABSTRACT
The green biosynthesis of metallic nanoparticles is an eco-friendly method which involves the use of cell-free extracts of plants, microorganisms, macrofungi, macroalgae and whole organisms such as plants, mushrooms, seaweeds, and so forth. This chapter presents the nitty-gritty knowledge required for a successful biosynthesis of various metallic nanoparticles. The choice of a biosynthetic approach is necessitated due to the quest for cheap, easy, safe and environment-friendly nanoparticles. To ensure successful biosynthesis, research in identifying the plant extract sources and optimized conditions for the biosynthesis of nanoparticles has shown better results. The most popular metallic particles are silver, gold, palladium, selenium, copper, and indium oxide. Their analysis is usually by Ultraviolet-visible spectra, X-ray diffractometer, energy-dispersive X-ray spectroscopy, transmission electron microscope, high-performance liquid chromatography (HPLC)-diode array detector (DAD) chromatogram and Fourier transform infrared spectroscopy (FTIR). Biosynthesized 446nanoparticles are less toxic and can be helpful to mankind for treating cancers and other deadly diseases.
