Abstract & Overview
Delivering therapeutic compound to the target site is a noteworthy issue in treatment of numerous diseases. A conventional application of drugs is characterized by limited effectiveness, poor bio distribution, and lack of selectivity [1 5]. These confinements and draw backs can be overcome by controlling drug delivery In controlled drug delivery systems [DDS] the drug is transported to the place of action, thus, its influence on vital tissues and undesirable side effects can be minimized.[6 10]