Chitosan-Grafted Copolymers and Chitosan-Ligand Conjugates as Matrices for Pulmonary Drug Delivery

<table>Thiolated chitosan: (1) general structure of thiolated chitosan as modified by an –SH group and (2) chitosan-<i>N</i>-acetyl-cysteine (showing the modification at the D-glucosamine unit). X: linker.</table>

International Journal of Carbohydrate Chemistry

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Figure 7

Figure 7: Chitosan-Grafted Copolymers and Chitosan-Ligand Conjugates as Matrices for Pulmonary Drug Delivery 