Chitosan is a natural polysaccharide derived from the exoskeletons of crustaceans such as shrimp and crab. It has gained attention in the field of research due to its biocompatibility, biodegradability, non-toxicity, and antimicrobial properties. Chitosan has a wide range of applications including wound healing, drug delivery, tissue engineering, and food preservation. Researchers are exploring various ways to modify chitosan for improved effectiveness in different applications, as well as studying its potential in new areas such as environmental remediation and nanotechnology. Overall, chitosan research aims to harness the unique properties of this natural material for various industrial and biomedical applications.