Biosynthesis and Characterization of Microorganisms-Derived Nanomaterials

Nanotechnology is considered the newest advances in science that provide different methods to manufacture and develop diverse nanoparticles (NPs). Different metals can be prepared as NPs that can be used in various fields including biological systems. Ongoing research focuses on developing green methods for synthesizing NPs by using microorganisms. This chapter presents the importance of Nanotechnology. In addition to the different methods of synthesis NPs. Then emphasizes the various biological methods responsible for producing (silver, gold, copper, zinc, iron, palladium and selenium) NPs including the diverse metallic NPs using various promising microorganisms (virus, bacteria, actinomyces, algae, yeast and fungi) as a biogenic approach. Moreover, it also highlights the related molecular aspects of NPs that acted as reducing, capping and stabilizing agents together with the various factors influencing green syntheses like pH, temperature, as well as the concentrations of metal salts and substrates.