FIGURE 2.

(A) Schematic illustration of the preparation of DPA-TPE-DCM NPs. (B) Fluorescence imaging of tongue squamous cell carcinoma-bearing mice and ex vivo fluorescence images of major organs and tongue after intravenous administration of DPA-TPE-DCM NPs. (C) Fluorescence imaging of the mice neck and sentinel lymph nodes helped extract from the mice under the guidance of fluorescence. [(A–C) Reproduced from (Zhang et al., 2022) with permission from the Royal Society of Chemistry]. (D) Schematic illustration of PEG-PEI-Ce6/siRNA nanoparticles and the mechanism of the effects they exert. (E) The expression levels of Wnt-1 mRNA determined by RT qPCR. (F) In vitro cellular phototoxicity of PEG-PEI-Ce6/siWnt-1 against oral cancer cells. [(D–F) Reproduced from (Ma et al., 2017) with permission from the Royal Society of Chemistry].