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Representative TEM images obtained from unloaded TPGS5000-b-PCL15000 (A) and PAX-loaded TPGS5000-b-PCL15000 nanocarriers (at 1:10 drug-to-polymer ratio) (B) using a JEOL JEM-1400 transmission electron microscope (JAPAN) operating at an acceleration voltage of 80 kV.
