Smart Wound Dressings and the Biological Parameters They Monitor: A Scoping Review

Chronic wounds represent a major global health and economic burden. Smart wound dressings integrate biosensing and stimuli-responsive materials to monitor and modulate biological parameters within the wound microenvironment. This scoping review maps the biological parameters monitored by smart wound dressings, an area not previously synthesized across preclinical and clinical contexts. Following Joanna Briggs Institute (JBI) and PRISMA-ScR frameworks, five databases were searched in March 2025. Studies published between 2008 and 2025 reporting biosensing or responding technologies in wound dressings were included. A total of 179 studies met the inclusion criteria, most being preclinical (in vitro or in vivo rodent models), with few human investigations. The most frequently monitored parameters were pH, temperature, oxygenation, moisture, bacterial burden, and protease activity (particularly MMP-9). Preclinical data showed enhanced collagen deposition, angiogenesis, and infection control compared with conventional dressings, whereas human studies mainly assessed feasibility and biocompatibility. Smart dressings demonstrate strong technical and biological performance, but clinical validation and standardized outcome reporting remain limited. Future interdisciplinary research should prioritize well-designed clinical trials to confirm therapeutic and economic benefits and enable translation into personalized wound care.