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Significant efforts have been devoted to use the potentials of nanotechnology in drug delivery since it offers a suitable means of site-specific and/or time controlled delivery of small or large molecular weight drugs and other bioactive agents.Pharmaceutical nanotechnology focuses on formulating therapeutically active agents in biocompatible nano forms, These systems offer many advantages in drug delivery, mainly focusing on improved safety and efficacy of the drugs, e.g. providing targeted delivery of drugs, improving bioavailability, extending drug or gene effect in target tissue, and...

Under the light of current literature (i.e. articles, books, patents and information posted on the nanotech company websites) and the product pipelines of leading pharma/biotech companies, it is evident that we would be seeing many nanotechnology-based pharmaceutical products in this century. It is likely that the oral formulations would dominate this specialized segment of novel dosage forms. The chemical/polymer industry has been feeding the drug delivery scientists with a variety of biopolymers, having wide range of specialized properties. Nanoparticles made from the biopolymers are likely...