A literature review on preparation, characterization, and application of hydrogel

Abstract

The study aimed to assess the widespread usage of hydrogels in pharmaceutical formulations. Hydrogels are hydrophilic polymer matrices that can hold an enormous volume of water and swell in water, making them non-toxic and ideal for drug delivery systems. The clinical applications of hydrogels have shown that they provide therapeutic benefits. Hydrogels are durable, easily self-healable, and can shield the surface of accurate components from damage. Hydrogels can be physically cross-linked through various techniques, including heating/cooling a polymer solution, ionic interaction, complex coacervation, H-bonding, and freeze-thawing. Hydrogels play a critical role in pharmaceutical technology as a drug delivery system.