This book provides leading edge research from around the globe in the field of nanoparticles which is a small particle with at least one dimension less than 100 nm. A nanoparticle is an amorphous or semicrystalline zero dimensional (0D) nano structure with at least one dimension between 10 and 100nm and a relatively large ( Ý 15%) size dispersion.Nanoparticle research is currently an area of intense scientific research, due to a wide variety of potential applications in biomedical, optical, and electronic fields.