Fig. 5.

(A) Self-assembly between oleanolic acid (OA) and glycyrrhetinic acid (GA). Reproduced with permission from Ref. [59]. Copyright 2020, American Chemical Society; (B) Schematic illustration of formation of aspirin-ursolic acid (Asp-UA) nanoparticles and their inhibitory effect on tumor metastasis. Reproduced with permission from Ref. [86]. Copyright 2018, American Chemical Society; (C) Illustration of self-assembly between UA, paclitaxel (PTX), and indocyanine green (ICG) for synergistic antitumor effect. Reproduced with permission from Ref. [90]. Copyright 2017, American Chemical Society. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)