“…[28][29][30] Moreover, because of its bioadhesive properties, chitosan has also been worth in novel bioadhesive drug delivery systems for the treatment of wounds and burns as well as for local administration of drugs in treatments of diseases in the eyes, nasal, mucosa, or tumors. [31][32][33][34] Besides, chitosan is reported to have other biological and biomedical properties, such as antitumor, 35 antimicrobial, 36 and antioxidant activities. 37 Chitosan has been used in drug delivery systems in different forms, like tablets, microspheres, micelles, vaccines, nucleic acids, hydrogels, nanoparticles, and conjugates.…”