Fig. 5From: Photochemically-driven highly efficient intracellular delivery and light/hypoxia programmable triggered cancer photo-chemotherapya Cell viability of HUVECs and 4T1 cells co-cultured with APP NPs for 24 h at different concentrations. b Cell viability of 4T1 cells co-cultured with NPs followed by various treatments. c Dead/live cell staining of 4T1 cells treated with PBS, free AQ4N, PP NPs and APP NPs followed by various administration. The scale bar is 50 μm. d Flow cytometry analysis of 4T1 cells co-cultured with PBS, free AQ4N, PP NPs and APP NPs followed by various treatmentsBack to article page