A Review on Gold Nanoparticles

This review is focused essentially on the types and applications of gold nanoparticles in the field of medicine and targeted drug delivery. Nanotechnology has become one of the most interesting and advanced areas of research in this field. Among nanoparticles, gold nanoparticles demonstrate special advantages in this field due to their unique properties, small size and high surface area-to-volume ratio. These particles have been widely used in various biomedical applications and drug delivery systems due to their inert nature, stability, high dispersity, non-cytotoxicity and biocompatibility. Gold nanoparticles can be functionalized with protein, peptides and nucleic acid. So these have a great application not only in bio sensing drugs but also in drug, gene and protein delivery.