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Representative size distribution profiles of tacrolimus-loaded PEO-b-PCL micelles by dynamic light scattering (Zetasizer Nano ZS, Malvern Instrument Ltd., UK) for the following: (a) PCL30, (b) PCL60, (c) PCL120, and (d) PCL200. The concentration of block copolymers was 10 mg/mL.
