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Preparation, Characterization and Drug Release Behaviors of Crosslinked Chitosan/Attapulgite Hybrid Microspheres by a Facile Spray Drying Technique

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Figure

Table 1. Composition of prepared formulations, encapsulation efficiency and mean particle sizes of the hybrid microspheres
Figure 3. FTIR spectra of (a) DS, (b) APT, (c) crosslinked CTS, (d) CTS/APT-1 and (e) DS-loaded CTS/APT-1
Figure 5. SEM of (a) crosslinked CTS (×5000), (b) CTS/ APT-1 (×5000) and (c) CTS/APT-2 (×5000); (a’) crosslinked CTS (×20000), (b’) CTS/APT-1 (×20000) and (c’) CTS/ APT-2 (×20000)

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