Nanotechnology is a ground breaking scientific innovation with significant activities that includes the production and application of nanostructures. It is an emerging technology that will contribute to economic prosperity by providing solutions to challenges that face modern day economies for the sustainability of mankind’s development. Its applications cut across many scientific boundaries, from electronics to medicine, to advance manufacturing, to cosmetics. Silver nanoparticles are the most widely produced and marketed nanoparticles. This is due to their outstanding plasmonic activity, anti-cancer activity, disinfectant, bacterial inhibitory and bactericidal effects compared with the other metal nanoparticles. This book provides new research on the advances and the many applications of silver nanoparticles.