Nanoscience and technology is an exciting and rapidly emerging branch of science and technology which work at the atomic, molecular and macromolecular levels. Nanotechnology deals with manipulation and use various tools and functional materials at nanoscale. The concept of nanotechnology was first time proposed by American Nobel laureate Richard Feynman in 1959. However, the basic idea of definition and popularization was explored much more in 1980s. Nanotechnology has opened up new panoramas for applications in molecular biology, biotechnology in revolutionizing almost all the disciplines of veterinary and animal sciences by providing new, small scale tools and materials that are beneficial for living organisms. The different types nanomaterials are being used for disease diagnosis, treatment, drug delivery, animal nutrition, animal breeding. The various types of nanoparticles are used such as metallic nanoparticles, quantum dots, carbon nanotubes, magnetic nanoparticles, fullerenes, liposomes and dendrimers Therefore, scientists, doctors, engineers and biologists should work at the cellular and molecular levels for significant benefits and there should be public awareness about the potential risks.

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