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Conventional drug delivery system generally deals with the issues involving repeated dosing and systemic toxicities. Since few decades, hydrogels have played a significant role as a carrier in drug delivery to minimize the drawbacks pertaining to conventional drug delivery. They.

have been considered as one of the most reliable groups of biomaterials due to their biocompatibility, physicochemical properties, and designed interaction with living surroundings. The diversity and versatility of hydrogels make them extraordinary not only in the field of targeted drug delivery but also in tissue engineering, fabrication of contact lenses, and wound dressings. Another reason which makes hydrogels a smart carrier in drug delivery is their special characteristic to retain water inside their network. In recent years, hydrogels fabricated from natural, semi-synthetic, and synthetic polymers have gained a lot of attention in targeted …