pH-Responsive Bilayer Hydrogel with Synergistic Antibacterial/Anti-inflammatory Effect for Infected Wound Healing

) and reactive oxygen species scavenging ability (93.89% DPPH elimination). In a rat-infected wound model, the PPTC bilayer hydrogel synergistically accelerated infected wound healing by reducing inflammation, enhancing collagen deposition, and promoting angiogenesis. This work pioneers a pH-driven therapeutic platform for advancing smart dressings for infected wound management.