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. 2022 Dec 15;7(51):48372–48382. doi: 10.1021/acsomega.2c06578

Figure 2.

Figure 2

(a,b) Fluorescence spectra of SOSG solution incubated with Ce6 NPs and PTX@Ce6 NPs with the same concentration of Ce6 (2 μg/mL) after irradiation with a 660 nm laser. (b) Fluorescence images of intracellular ROS detected using the DCFH-DA probe. (d) Fluorescence images of 4T1 cells showing the released Ce6 molecules from Ce6 or PTX@Ce6 NPs into the cytoplasm. (e) 4T1 cell viabilities at different conditions: only irradiation, only Ce6 NPs, and Ce6 NPs plus irradiation. (f) 4T1 cell viabilities at different conditions: only irradiation, only PTX@Ce6 NPs, and PTX@Ce6 NPs plus irradiation.