Research Article: Preparation of Ultra-Small Copper Nanoparticles-Loaded Self-Healing Hydrogels with Antibacterial, Inflammation-Suppressing and Angiogenesis-Enhancing Properties for Promoting Diabetic Wound Healing
Abstract:
The wound healing process is continuous events which can be divided into four separate but overlapping steps; these include hemostasis, inflammation, proliferation and remodeling. In terms of chronic wound healing, it was characterized by severe scarring, inflammation and prolonged healing time. Especially during the occurrence of diabetic wound healing, numerous distinct cell types are regulated at various phases of the biological process. The limitations of diabetic chronic repairment are mainly manifested as reduced neovascularization and collagen deposition, prolonged inflammatory reaction, and enhanced oxidative stress. Although many new treatment methods including autologous skin transplantation, revascularization, negative pressure suction and stem cell therapy show the promising therapeutic potential, high cost of treatment, clinical effectiveness and safety limit their application in medical practice. At the location of the diabetic wound injury, bacteria such Staphylococcus aureus and Escherichia coli initially multiply, leading to chronic bacterial infections and excessive local inflammation. In addition, activated pro-inflammatory macrophages secrete a greater quantity of pro-inflammatory cytokines, which maintains an excessive level of inflammation at the wound site and slows the progression from the inflammatory phase to the proliferative phase. The diabetic wound injury is also characterized by impaired angiogenesis and poor vascular integrity. Taken together, in order to promote wound healing process, the multifaceted therapy should be made in killing bacteria, increasing angiogenesis, and reducing inflammation.
Introduction:
The wound healing process is continuous events which can be divided into four separate but overlapping steps; these include hemostasis, inflammation, proliferation and remodeling. In terms of chronic wound healing, it was characterized by severe scarring, inflammation and prolonged healing time. Especially during the occurrence of diabetic wound healing, numerous distinct cell types are regulated at various phases of the biological process. The limitations of diabetic chronic repairment are mainly manifested as…
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