Figure 6

Representative fluorescent microcopy images of 4T1 cells incubated with MTX injection and MTX/PGD NPs for 4 h.
Red: cy5.5, scale bar: 20 μm.
Representative fluorescent microcopy images of 4T1 cells incubated with MTX injection and MTX/PGD NPs for 4 h.
Red: cy5.5, scale bar: 20 μm.