Light‐Controlled Nanosystem with Size‐Flexibility Improves Targeted Retention for Tumor Suppression

Although great promise has been achieved with nanomedicines in cancer therapy, limitations are still encountered, such as short retention time in the tumor. Herein, a nanosystem that can modulate the particle size in situ by near‐infrared (NIR) light is self‐assembled by cross‐linking the surface‐modified poly(lactic‐ co ‐glycolic acid) from the up‐conversion nanoparticle with indocyanine green and doxorubicin–nitrobenezene–polyethylene glycol...