Hydrogel Based Drug Delivery Systems: A Review with Special Emphasis on Challenges Associated with Decontamination of Hydrogels and Biomaterials.

Background: Many researches involving the development of new techniques and biomaterials to formulate a suitable drug delivery system and tissue engineering have been conducted. The majority of published literature from these researches emphasizes the production and materials characterization. The safety aspect of hydrogels and biomaterials is a major constraint in their biological applications.