Abstract
Wound healing is an intricate process that requires complex coordination between many cell types and an appropriate extracellular microenvironment. Chronic wounds often suffer from high protease activity, persistent infection, excess inflammation, and hypoxia. While there has been intense investigation to find new methods to improve cutaneous wound care, the management of chronic wounds, burns, and skin wound infection remain challenging clinical problems. Ideally, advanced wound dressings can provide enhanced healing and bridge the gaps in the healing processes that prevent chronic wounds from healing. These technologies have great potential for improving outcomes in patients with poorly healing wounds but face significant barriers in addressing the heterogeneity and clinical complexity of chronic or severe wounds. Active wound dressings aim to enhance the natural healing process and work to counter many aspects that plague poorly healing wounds, including excessive inflammation, ischemia, scarring, and wound infection. This review paper discusses recent advances in the development of biomaterials and nanoparticle therapeutics to enhance wound healing. In particular, this review focuses on the novel cutaneous wound treatments that have undergone significant preclinical development or are currently used in clinical practice.
Highlights
Cutaneous injuries are a universal aspect of medical care, with approximately 300 million chronic and 100 million traumatic wound patients worldwide
A huge number of repair people like plumbers, roofers, framers, and laborers are recruited to fix the damage done to the castle, which is similar to the proliferation phase of wound healing, mediated by macrophages, lymphocytes, fibroblasts, and keratinocytes
Prospective, randomized, controlled multicenter clinical trial with SIS demonstrated 55% of wounds heal compared to 34% in standard care Bovine lyophilized amniotic membrane extract tested on rabbit ear wound model demonstrating increased epidermal and dermal regeneration compared to control Silk fibroin and gelatin-based layered wound dressing in a randomized clinical trial of split thickness skin graft model showed significantly less pain and more rapid skin functional barrier recovery Composite film of collagen showed significant wound regeneration in a full-thickness wound in the rat dorsal region resulted in enhanced the formation of blood capillaries
Summary
Advanced wound dressings can provide enhanced healing and bridge the gaps in the healing processes that prevent chronic wounds from healing. These technologies have great potential for improving outcomes in patients with poorly healing wounds but face significant barriers in addressing the heterogeneity and clinical complexity of chronic or severe wounds. Active wound dressings aim to enhance the natural healing process and work to counter many aspects that plague poorly healing wounds, including excessive inflammation, ischemia, scarring, and wound infection. This review paper discusses recent advances in the development of biomaterials and nanoparticle therapeutics to enhance wound healing.
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