Fig. 6
From: Near-infrared light-triggered nano-prodrug for cancer gas therapy
a Construction of SP-loaded PEG-UCNPs platform for NIR triggered H2S release. Reproduced with permission from Ref [99]. Copyright 2015, The Royal Society of Chemistry. b Schematic illustration of ZSZIT as a H2S-sensitized PDT/chemotherapeutic synergistic nanoplatform. Reproduced with permission from Ref [102]. Copyright 2020, Ivyspring International Publisher