Fig. 10: Establishment of PS-loaded UCN nanoconjugates (PUNs) that can enhance PDT effect.
From: Strategies to improve photodynamic therapy efficacy by relieving the tumor hypoxia environment

a Schematics of the preparation of PUNs. b Schematic illustration of the enhanced PDT effect of PUNs by reducing the population of tumor-associated macrophages and hypoxia. Copyright 2018, American Chemical Society (ref. 52).