The Most Frequently Used Polymers in Skin Wound Healing Hydrogels-Part One

The skin is one of the largest organs of the human body that protects against physical, chemical and microbial damage of the external environment. This complex organ has the ability to regenerate and has the possibility of self-healing. However, severe skin wounds do not heal on their own in a short period of time and require the use of engineered scaffolds. In recent years, tissue engineering has made tremendous advances in the production of these skin repair structures. Among these structures, hydrogels are one of the most important and practical scaffolds for improving and repairing the skin. Based on the materials used in the construction of hydrogels, hydrogels are divided into two categories: natural and synthetic. A combination of natural and synthetic polymers is used to improve performance and accelerate the function of hydrogels in the wound healing process. The purpose of this review article is to focus on providing information on the types of polymers used to make functional wound healing hydrogels.