Abstract
Nanotechnology involves the manipulation of structures and devices whose sizes range between 1 and 100nm at least in one dimension. Such materials display novel properties and functionalities that are significantly different than those of the bulk counterparts. Chitosan-based nanomaterials are among the most widely explored natural polysaccharides due to their biocompatibility, biodegradability, relatively low cost, antibacterial, cationic nature, and low toxicity. Chitosan's structure can be modified chemically and physically to generate novel characteristics useful in therapeutic delivery and tissue engineering. The small size, customized surface, improved solubility, multifunctionality, and tissue adhesion properties of chitosan-based nanomaterials have created a huge impact in biomedical area. This chapter presents an overview of chitosan-based nanomaterials used in therapeutic delivery.
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