Hydrogel: Preparation, Characterization and Applications

This review article is intended to provide an overview of hydrogel as novel vesicular drug delivery system.For the treatment of many diseases large molecular weight proteins are required. These can be available with the availability of Hydrogels. Hydrogels are hydrophilic, three-dimensional networks, which are able to imbibe large amounts of water or biological fluids, and thus resemble, to a large extent, a biological tissue. They are insoluble due to the presence of chemical (tie-points, junctions) and/or physical crosslinks such as entanglements and crystallites. It has focused on to present a concise review on the applications of hydrogels in the pharmaceutical field, hydrogel properties, method of preparation of hydrogel, advantages and disadvantages of hydrogel, characterization of hydrogel.