Effectiveness of Blue Light for Hard-to-heal Wounds

Accelerated photobiomodulation therapy using EmoLED™, a portable blue LED device (415 nm, 120 mW/cm², 7.2 J/cm²). The device delivers continuous blue light at 4 cm from the wound surface, 60 seconds per 25 cm² sub-area (120 seconds for diabetic wounds), administered twice weekly for 4 consecutive weeks. The protocol is combined with standard wound care (cleansing, dressings, compression as indicated). The intervention is designed to promote wound healing in hard-to-heal wounds by modulating inflammation, enhancing angiogenesis, fibroblast activation, and re-epithelialization. This accelerated protocol (twice weekly vs. standard weekly regimens) aims to optimize clinical outcomes in a nurse-led outpatient setting and distinguishes this intervention from lower-frequency or red/infrared-based photobiomodulation approaches.