抗微生物聚烯酸/酸水凝伤口敷料,促进全厚皮肤愈合
Changlin Zhou1,2, Lingmin Chen1, Wenyan Zhou1
1College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, China.
Journal of biomaterials science. Polymer edition
|January 10, 2024
概括
这项研究开发了一种新的酸修饰的水凝伤口敷料. 这种先进的材料具有卓越的粘附性,抗菌活性,并促进有效的皮肤愈合,提供有前途的临床应用.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 开发先进的水凝伤口带,结合功能,如粘附和抗菌性质仍然是一个挑战.
- 聚化合物,如酸 (TA),可以增强水凝的生物粘附性和抗菌功效.
- TA可以抑制自由基聚合,这给水凝合成带来了挑战.
研究的目的:
- 合成新型聚烯酸-酸 (PAA-TA) 水凝,用于伤口包裹应用.
- 为了克服TA在水凝形成中的聚合抑制.
- 评估开发的水凝的物理,机械,抗微生物和体内伤口愈合特性.
主要方法:
- 合成了聚烯酸 (PAA) 水溶液.
- 将PAA与酸 (TA) 和一个交叉连接剂 (1,6-hexanediol bis(2-methyl-1-propionic acid azide)) 混合在一起,形成PAA-TA水凝.
- 评估了机械性能 (抗拉强度,破裂时延长),粘附于湿组织,对黄金葡萄球菌和大肠杆菌的抗菌活性,以及在试验猪体内全厚皮肤缺陷愈合.
主要成果:
- 一系列PAA-TA水凝 (0-15重量%TA) 成功合成,避免了TA与聚合物的干扰.
- 水凝表现出极好的湿组织粘附性.
- 含15%重量%TA的PAA-TA水凝具有很高的抗拉强度 (1.72 MPa) 和破裂时的延伸 (1446.3%).
- 观察到针对S. aureus和E. coli的显著抗菌活性.
- 活体研究表明,水凝促进了全厚皮肤缺陷的愈合,并且具有生物相容性.
结论:
- 成功开发了可注射,自我愈合和抗菌PAA-TA水凝.
- 这些水凝具有出色的机械性能,组织粘附性和抗菌功效.
- PAA-TA水凝显示出作为先进的伤口包裹材料的临床应用有很大的潜力.
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