Figure 6.
The fluorescent microscopy images of the different incubation times of HepG2 cells with PEG-PLGA@DOX and PU-hyd-DOX micelles at pH 7.4; (a) PU-hyd-DOX 3 h (b) PU-hyd-DOX 5 h (c) PEG-PLGA@DOX 5 h.
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