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SEM images of pure β-cyclodextrin (β-CD) (A–C) and β-cyclodextrin associated with estragole (ES/β-CD) (D–F) are presented. To provide further details of the surface morphology before and after estragole association, higher-magnification images of the regions highlighted in red ((A,B) for β-CD, and (C,D) for ES/β-CD) are shown in (C,F), respectively.
