Fig. 4From: Dual-responsive doxorubicin-loaded nanomicelles for enhanced cancer therapya Fluorescence images of A549 cells incubated with PPT/D(SA)@DOX and PPT/D(DMA)@DOX with the same concentration of 2.0 μg/mL in 37 °C and 4 °C for 2 h and 4 h at pH 7.4 and 6.8. Scale bar: 50 μm. Blue: DAPI; red: DOX. Quantitative analysis of flow cytometry results of cellular uptake of PPT/D(SA)@DOX and PPT/D(DMA)@DOX in 37 °C (b) and 4 °C (c)Back to article page