In the second half of 1980s to the early 1990s a number of important
discoveries and invention was made, created an essential impact on the
further development of Nanotechnology. In recent years, nanotechnology
has shown wonderful promise to revolutionize drug delivery applications
by generating novel 'nano-deliveries' that might allow more efficient
targeted delivery of various drug molecules, which will reduce or limit
systemic side-effects and allow for more efficient use of the drug.
Nanotechnology has been an exponential interest in the development of
novel drug delivery systems using Nanoparticles, Nanosuspensions,
Nanoemulsion, Nanocarriers, Nanosponges, Nanospheres, etc. This review
focuses on classification, methods of preparation, characterization,
application, advantages of these several nanoparticulate drug delivery
systems.