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Research Article

Chitosan-Based Particles as Controlled Drug Delivery Systems

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Pages 41-57 | Received 04 May 2004, Accepted 15 Jul 2004, Published online: 10 Oct 2008

Figures & data

Figure 1 Modification of chitosan with bromoalkylphthalimide and hydrazine.

Figure 1 Modification of chitosan with bromoalkylphthalimide and hydrazine.

Figure 2 Chemical modification of chitosan with (a) carboxyl group, (b) quateraminated group, and (c) benzoyl group.

Figure 2 Chemical modification of chitosan with (a) carboxyl group, (b) quateraminated group, and (c) benzoyl group.

Figure 3 Chitosan derivatization with fatty acyl chlorides.

Figure 3 Chitosan derivatization with fatty acyl chlorides.

Figure 4 Synthetic pathway of (a) chitosan-4-thio butylamidine conjugate, and (b) chitosan-thioglycolic acid conjugate.

Figure 4 Synthetic pathway of (a) chitosan-4-thio butylamidine conjugate, and (b) chitosan-thioglycolic acid conjugate.

Figure 5 Schematic preparation of poly (N-vinyl-2-pyrrolidone-polyethylene glycol diacrylate)-chitosan hydrogels.

Figure 5 Schematic preparation of poly (N-vinyl-2-pyrrolidone-polyethylene glycol diacrylate)-chitosan hydrogels.

Figure 6 Synthetic pathway of palmitoyl glycol chitosan.

Figure 6 Synthetic pathway of palmitoyl glycol chitosan.

Figure 7 Reaction mechanism of chitosan with deoxycholic acid.

Figure 7 Reaction mechanism of chitosan with deoxycholic acid.

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