Aqua Gel is a network of polymer chains that are water-insoluble, sometimes found as a colloidal gel in which water is the dispersion medium and also sometime they are in the form of cross linked polymer networks that absorb substantial amounts of aqueous solutions. Aqua Gels have been introduced suitable as novel materials for a variety of applications such as biomedical engineering, sanitary products, agriculture, bioseparation, enhanced oil recovery, etc. They have been successfully used as superabsorbent materials and in drug delivery, cell encapsulation and tissue repair due to their high water content and consequent biocompatibility. The rate and degree of Aqua Gel swelling are the most important parameters which control the release patterns of solvents and drugs from these polymeric networks. PH sensitive and temperature sensitive Aqua Gels can be used for site specific controlled drug delivery. Aqua Gels that are responsive to specific molecules, such as glucose or antigens, can be used as biosensors as well as drug delivery systems. The aim of this article is to present a concise review on the applications of Aqua Gels in the pharmaceutical field, Aqua Gel properties, and method of preparation of Aqua Gel, advantages and disadvantages of Aqua Gel.
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