Fig. 3
From: Recent advances in near-infrared-II hollow nanoplatforms for photothermal-based cancer treatment
Illustration of (a) self-assembly of Ag2S QDs into stimulation-responsive Ag2S Ve and (b) Biomedical applications of Ag2S Ve for pH-activated NIR-II FLI guided-NIR-II PTT. The disassembly-induced in situ controllable activated NIR-II fluorescence recovery resulted a real-time monitoring for deep-penetration toward solid tumors. Reproduced with permission from Ref. [98]. Copyright 2021, Wiley-VCH.