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Scanning electron micrograph (SEM) of the synthesized microspheres: (a) magnified image of chitosan microsphere, (b) chitosan microspheres, (c) magnified image of gelatin microspheres, and (d) gelatin microspheres, (magnification: (a) 2500x; (b) 8000x; (c) 5000x; (d) 1160x).
