Advances on the Use of Biodegradable Proteins/Peptides in Photothermal Theranostics

Figure 5

(a) Scheme of in situ conversion of micelles to nanofiber after intravenous injection. TEM images of the negatively stained (b) micelles (scale bar: 1 μm) and (c) nanofiber (scale bar: 100 nm). (d) Calcein AM and PI costaining of HeLa cells incubated with nanofiber for 4 h with or without 808 nm laser irradiation (1 W/cm², 5 min). (e) Photographs of HeLa-tumor-bearing mice at different days after PTT treatment. (f) Tumor growth curves of different groups of HeLa-tumor-bearing mice after PTT treatment. Copyright from American Chemical Society (ACS), 2015 [60] .