This book begins with an introduction of nanobiotechnology, followed by biosyntheses of AgNPs, development of silver/chitosan (Ag/CS) polymer nanocomposites, synthesis of silver/chitosan-g-poly acrylamide (Ag/CS-g-PAAm) nanocomposite hydrogel and silver/chitosan/poly vinyl chloride (Ag/CS/PVC) blend. Finally, it presents novel bioengineering of polyfunctional metallic nanostructures other than Ag, emphasizing biomass utilization and value-added...