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SEM images of (A) CAP at different magnifications: (a) 1000×, (b) 2000× and (c) 4000×; (B) β-CD at different magnifications: (a) 1000×, (b) 2000× and (c) 4000×and (C) processed β-CD at different magnifications: (a) 1000×, (b) 2000× and (c) 4000×.
