Comparing current apply of medication thereto of the last century, one cannot facilitate however to note countless advancements to handle antecedental incurable diseases   Recent years have witnessed unprecedented growth of analysis and applications within the space of Nano science and applied science. There’s increasing optimism that applied science, as applied to medication, can bring vital advances within the diagnosing and treatment of malady. Nanoparticles confine vast potential as a constructive drug delivery system. The application of nanotechnology in medicine and more precisely drug delivery is set to unfold quickly Nanotechnology offers several edge in numerousfields of science. Nano technological application is highly required in the field of drug delivery because of its high accuracy towards the target site, so it is able to decrease harmful side effects of drugs to normal cells. In this regard, nanoparticles are the essential building blocks of nanotechnology. . To overcome the problems of gene and drug delivery, nanotechnology has gained interest in recent yearsNano medicine and Nano delivery systems are a comparatively new however quickly developing science wherever materials within the Nano scale vary are used to function means that of diagnostic tools or to deliver therapeutic agents to specific targeted sites in an exceedingly controlled manner.

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Keywords: Nanoparticles, Nanoparticle Formulation, Drug Delivery System, Mechanism of Delivery.