What is moist healing and how to create a moist healing environment?

Moist wound healing refers to keeping the wound surface moist, typically achieved through exudate or biological dressings. Essentially, it creates a closed environment for the wound, preventing external stimuli and interference, allowing the patient's own healing mechanisms to function fully, resulting in rapid wound healing and inhibiting scarring. To achieve this closed environment, two conditions must be met simultaneously: 1) tight adhesion to the wound surface, and 2) prolonged adhesion to the wound surface.

Currently available biomaterials fall into two main categories: liquid dressings and gel dressings. Liquid dressings have the advantage of instant diffusion, allowing them to adhere closely to the wound surface, but they quickly dissipate and fail to form a barrier. Gels, on the other hand, have poor diffusion properties and cannot adhere closely to the wound surface. Therefore, neither can achieve a moist healing environment.

Thermosensitive biomaterials (Beijing Innovative Medical Devices) are thermosensitive biomaterials with drug carrier functions. Their unique thermosensitive properties mean they are fluid liquids at low temperatures and non-flowing gels at body temperature, allowing them to adhere to the wound surface without leakage. In their liquid state, they can instantly diffuse and tightly adhere to the wound surface; under body temperature, they form a gel within 6 seconds, allowing for prolonged adhesion and creating an effective barrier. This combination of tight adhesion and long-term adherence creates a truly moist healing environment, the optimal environment for wound healing, promoting healing and inhibiting scar formation.