ABSTRACT
Chitosan (CS) is a well-known polysaccharide prepared by deacetylation of chitin. It is amongst the most abundant polysaccharides in the world and is known to be a versatile biopolymer due to its biocompatibility and biodegradability. Recent studies have highlighted its potent biological responses in pharmaceutical applications such as wound healing, tissue engineering, biomedical adhesives, etc. However, to modulate and enhance its biological activity, various chemical or enzymatic modifications are made to its structure to obtain its derivatives, which behave as better models. This chapter elaborates the pharmaceutical efficiency of various CS derivatives, which have been prepared by conventional chemical and enzymatic processes.
