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SBL-37 MMs prepared with different dpore: (A) 0.3 µm, (B) 0.5 µm, (C) 0.8 µm, (D) 1.1 µm, and (E) 2.0 µm. Top row: SEM overview images (scale bars 1000 nm); middle row: close-up SEM images (scale bars 500 nm); bottom row: TEM images (scale bars 200 nm).
