fig4
![Host-guest assemblies for improved photothermal cancer therapy](https://image.oaes.cc/4eb0a3f0-0d9c-4fd7-ad6a-5b3971682f46/5484.fig.4.jpg)
Figure 4. (A) Tumor acidic environment induced size switch and deep penetration of WP5⊃TAPEG host-guest assemblies. Reproduced with permission from ref.[60], Copyright 2022, John Wiley & Sons; (B) Overexpressed hydrogen peroxide-induced size switch and deep penetration of CD-CuS and Fc-CuS based host-guest assemblies. Reproduced with permission from ref.[61], Copyright 2021, the Royal Society of Chemistry.