Preparation method of hydrogel medical dressing for promoting wound healing

Abstract

Provided is a preparation method of a hydrogel medical dressing for promoting wound healing. The preparation method comprises the steps of firstly preparing a reddish-brown CuS@MoS2 composite structure by a hydrothermal method, then uniformly doping the red-brown CuS@MoS2 composite structure into a polyvinyl alcohol solution, and forming CuS@MoS2 hydrogel after several freeze-thawing cycles to prepare a dressing for promoting wound healing. The preparation method is simple, the production cost is low, the repeatability is good, and satisfactory results are obtained by applying the dressing tolarge area scalds, burns and other wounds which are not easy to heal.

Description

technical field [0001] The invention relates to a preparation method of wound healing dressing, especially a method using photothermal method and CuS@MoS 2 Preparation method of hybrid hydrogel dressing with hydrogel synergistically antibacterial and promoting wound healing. Background technique [0002] Bacterial infectious diseases account for one-third of the global mortality rate. According to reports, 25,000 people in Europe die due to bacterial infections every year. In the treatment of bacterial infectious diseases, the European Union invests 1.5 billion euros every year. As we all know, skin tissue is the body's own defense against the outside world. An important barrier to environmental infection, so avoiding skin tissue from bacterial infection and accelerating wound healing of damaged skin tissue is a very urgent task, currently antibiotic-based therapy is the most common way to treat infection, but excessive use of antibiotics will Lead to enhanced bacterial res...

AI Technical Summary

Problems solved by technology

[0006] Medical dressing is a kind of biomedical material used to treat sores, wounds and other skin lesions. It is widely used in daily life. During the reconstruction or recovery period of skin trauma, medical dressing can temporarily play part of the function of skin barrier and promote wound healing. To provide a favorable microenvironment, medical dressings have important functions such as physical barriers, controlling wound secretions and odors, controlling wound infection, hemostasis, reducing or removing scar formation, and accelerating wound healing. Hydrogel medical dressings are A new type of wound dressing developed in recent years is mainly composed of high-molecular polymers that absorb water and swell to form a gelatinous substance with a three-dimensional network structure. Its water content can reach 96%, and it can maintain a moist environment on the wound. The temperature of the hydrogel itself is only about 5°C, and its unique effect can significantly reduce postoperative pain and inflammation, shorten the time of wound healing, promote better wound healing without leaving scars; in addition, the translucent properties are conducive to the observation of wounds Traditionally, doctors usually use sterile gauze and topical antibiotics for treatment. Gauze is easy to stick to the skin wound tissue. When changing the dressing, it often destroys the new epithelial and granulation tissue, causing bleeding and secondary pain for the patient.

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