Advanced Functional Wound Dressings in Precision Surgery: Immunometabolic Reprogramming, Bioadaptive Biomaterials,...

Postoperative wound complications remain a major cause of morbidity, prolonged hospitalization, increased healthcare costs, and reduced quality of life. While traditional wound dressings functioned primarily as passive barriers against contamination and exudate, advances in wound biology have transformed surgical wound management. Tissue repair is now recognized as a dynamic immunometabolic process involving coordinated interactions among immune cells, stromal populations, extracellular matrix remodeling, mechanotransduction, mitochondrial function, redox balance, microbial ecology, and bioelectrical signaling. Consequently, modern wound dressings are increasingly designed as bioactive systems capable of actively modulating the wound microenvironment. Recent developments in biomaterials science, immunoengineering, nanotechnology, extracellular vesicle biology, bioelectronics, and artificial intelligence have enabled the creation of advanced wound platforms, including stimuli-responsive hydrogels, immunomodulatory biomaterials, nanozyme-based dressings, conductive scaffolds, oxygen-generating matrices, extracellular vesicle-loaded systems, and biosensor-integrated interfaces. Therapeutic strategies are progressively shifting from antimicrobial-focused approaches toward immune-regenerative modulation targeting chronic inflammation, mitochondrial dysfunction, ferroptosis, cellular senescence, and impaired mechanobiological signaling. This review examines emerging surgical wound dressings from mechanistic, translational, and biomaterial perspectives, highlighting current innovations, translational challenges, and future directions. Collectively, these technologies may enable intelligent therapeutic systems capable of sensing and directing tissue regeneration in real time.