An Overview on Nano Drug Delivery: Challenges and Its Safety Issues

Nanotechnology is the science and technology of precisely manipulating the structure of matter at the
molecular level. It is the use and manipulation of matter at a tiny scale. At this size, atoms and
molecules work differently, and provide a variety of surprising and interesting uses. Nanotechnology
deals with the creation of useful materials, device and systems and systems through control of matter
on the nanometer length scale and exploitation of novel phenomena and properties at that length
scale. Nanotechnology is one approach to overcome challenges of conventional drug delivery
systems based on the development and fabrication of nanostructures. Various nanostructures
employed in drug delivery, their methods of fabrication and challenges of nano drug delivery are
reviewed. The present subject matter is mainly conferred on different nanostructures and its
challenges and possible safety issues. Some challenges associated with the technology as it relates
to drug effectiveness, toxicity, stability and drug regulatory control. It is anticipated that better
understanding and application of nanotechnology for effective drug delivery would ultimately enhance
efficacy of treatment and patient compliance in drug use. It would be difficult to refute the potential
benefits of nanotechnology and stop development of research related to it since it has already begun
to break through many different fields of research. However, nanotechnology can be developed using
guidelines to assure that the technology does not become too potentially harmful.