An Injectable Photothermal-Fusing Hydrogel: Achieving Temperature-Controllable Mild Photothermal Therapy to Reverse Chemotherapy-Induced Immune Tolerance

Mild photothermal therapy (M-PTT) can induce immunogenic cell death (ICD) to reverse the immune tolerance caused by low-dose chemotherapy. However, it still needs convenient strategies to control temperature during M-PTT. In this work, the phase change material lauric acid (LA, melting point 43 °C) was introduced to construct nanoparticles loaded with deferoxamine mesylate (DFO) and cisplatin (CDDP), which were mixed into a supramolecular hydrogel formed by polyvinylpyrrolidone (PVP)/tannic acid (TA)/Fe