生物活性天然聚合物基双层粘合性皮肤替代品的血管生成,血液相容性和杀菌作用,用于感染烧伤愈合的伤口愈合
Mina Shahriari-Khalaji1, Mamoona Sattar2, Ran Cao1,3
1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.
Bioactive materials
|July 31, 2023
概括
这项研究使用3D打印开发了一种新的双层皮肤替代品 (BSS). 这种先进的伤口包裹有效地治疗感染的烧伤,促进更快的愈合和减少炎症.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 组织工程是组织工程.
背景情况:
- 热伤,特别是受感染的烧伤,由于高死亡率和缓慢愈合,存在重大临床挑战.
- 目前的治疗方法往往难以解决受感染烧伤的复杂性,需要先进的治疗策略.
- 开发多功能皮肤替代品对于增加严重烧伤病例的愈合至关重要.
研究的目的:
- 设计一种新的3D打印双层皮肤替代品 (BSS),以改善受感染烧伤伤口的愈合.
- 将抗菌和益血管性质纳入BSS,以改善治疗结果.
- 评估制造的BSS的粘合剂,抗菌和伤口愈合潜力.
主要方法:
- 双层皮肤替代品 (BSS) 的制造,包括3D打印的碳甲基和氧化酸盐接种catechol的功能层 (FL),以及含的疏水电支持层 (BL).
- 将甲基醇,和富血小板纤维素 (PRF) 纳入FL中,以赋予粘合性,抗菌性和促再生性.
- 评估BSS的粘合性质,对病原体的抗菌活性,以及L929纤维细胞的细胞增殖和迁移.
- 在烧伤模型中评估 *in vivo* 和 *in ovo* 血管生成和伤口愈合疗效,评估炎症和原密度.
主要成果:
- 该BSS表现出显著的粘合性能和强大的抗菌活性.
- 该物质促进了更快的血块形成,并增强了L929细胞的增殖和迁移.
- 观察到血管生成的显著增加,无论是 * in vivo * 还是 * in ovo *.
- 被BSS覆盖的伤口表现出加速愈合,其特点是减少炎症和增加原蛋白密度.
结论:
- 开发的3D打印双层皮肤替代品 (BSS) 显示出有希望的潜力,作为感染烧伤的有效治疗方法.
- BSS的多功能性质,结合了抗菌和治疗性质,有助于快速关闭伤口和组织再生.
- 这种创新的生物材料提供了一种可行的策略,以改善遭受严重热伤害的患者的治疗结果.
相关概念视频
Phases of Wound Repair
6.1K
Following injury, the integrity of the injured tissues must be reestablished. For example, in skin tissue, wound repair involves coordination among resident skin cells, blood mononuclear cells, extracellular matrix, growth factors, and cytokines to complete the healing cascade.
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
6.1K
Clinical Applications of Epidermal Stem Cells
2.7K
Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
2.7K


