Significance of Polymers in Drug Delivery System

In the recent past, there has been advancement in state-of-the-art therapies utilizing biopharmaceuticals, like proteins, peptides, nucleic acids and bioactive molecules, as therapeutics for diagnosing diseases. These novel drugs require refined drug delivery system which can be used to improve their pharmacokinetics and pharmacodynamic properties as well as enhance cell/tissue specificity and biocompatibility. In this regard, the development of new drug delivery systems and mechanisms to control them is mandatory which has led to the progress in the next generation of drug delivery system [1]. The development in the biomedical sciences has substantially influenced the design and growth of novel and smart drug delivery systems for more controlled and target-based drug usage. The high-tech drug delivery system is one of the fastest emerging sectors of the pharmaceutical market costing around $ 134.3 billion in 2008 and approximately $ 196.4 billion in 2014. The chief section of it is controlled and target-based drug delivery which has reached $ 50.9 billion in 2009 [2].