Fig. 3
a–b Confocal fluorescence images (a) and flow cytometry data (b) of SMMC-7721 cells after incubation with free Ce6, MCP, and MCPF for 4 h. c The cytotoxicity of MCPF on SMMC-7721 cells without laser irradiation. d Cell viability of SMMC-7721 cells treated with free Ce6 or MCPF under single or combined laser irradiation (660 nm at 500 mW cm−2 and 808 nm at 1.5 W cm−2). e The ROS-producing capability of MCPF NPs detected by flow cytometry using DCFH-DA as an indicator