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(A) TEM images of free PTX (a), PTX-PEG-HSA (b), and PTX-HSA (c), and (B) the AFM images of PTX-PEG-HSA.
Abbreviations: TEM, transmission electron microscopy; PTX, paclitaxel; PEG, polyethylene glycol; HSA, human serum albumin; AFM, atomic force microscopy.
