Chitosan, alginate, hyaluronic acid and other novel multifunctional hydrogel dressings for wound healing: A review

Wound healing is a complex project, and effectively promoting skin repair is a huge clinical challenge. Hydrogels have great prospect in the field of wound dressings because their physical properties are very similar to those of living tissue and have excellent properties such as high water content, oxygen permeability and softness. However, the single performance of traditional hydrogels limits their application as wound dressings. Therefore, natural polymers such as chitosan, alginate and hyaluronic acid, which are non-toxic and biocompatible, are individually or combined with other polymer materials, and loaded with typical drugs, bioactive molecules or nanomaterials. Then, the development of novel multifunctional hydrogel dressings with good antibacterial, self -healing, injectable and multi-stimulation responsiveness by using advanced technologies such as 3D printing, electrospinning and stem cell therapy has become a hot topic of current research. This paper focuses on the functional properties of novel multifunctional hydrogel dressings such as chitosan, alginate and hyaluronic acid, which lays the foundation for the research of novel hydrogel dressings with better performance.

Automated summary

This paper discusses the combination of natural polymers such as chitosan, alginate, and hyaluronic acid with other polymer materials, loading them in traditional hydrogels, and the development of novel multifunctional hydrogel dressings with antibacterial, self-healing, injectable, and multi-stimulation responsive properties using advanced technologies such as 3D printing, electrospinning, and stem cell therapy. The focus of this paper is on the functional properties of novel multifunctional hydrogel dressings such as chitosan, alginate, and hyaluronic acid, laying the foundation for the research of novel hydrogel dressings with better performance.