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基于Oligolysine的水凝敷料具有抗菌,抗炎和组织粘附活性,用于感染伤口的治疗
Jiaming Cui1, Yongchang Tian1, Bingbing Zhang1
1Department of Chemistry, Northeast Normal University, Changchun 130024, PR China.
Colloids and surfaces. B, Biointerfaces
|August 14, 2024
概括
这项研究开发了一种pH/ROS-双响应的可注射水凝,用于细菌感染伤口修复. 新型水凝表现出高效的抗菌活性,并促进伤口愈合.
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.
- 药物运输 药物运输 药物运输
背景情况:
- 可注射水凝由于其多功能性和伤口修复能力,为治疗细菌感染的伤口提供了前景.
- 开发具有刺激反应性质的先进水凝对于有效的治疗和增强治愈结果至关重要.
研究的目的:
- 构建一个pH/活性氧物种 (ROS) 双响应的注射水凝 (PVBDL-凝) 增强细菌感染伤口修复.
- 封装抗炎药物德克萨米他酸 (DEX) 以控制释放和治疗疗效.
主要方法:
- 通过使用聚乙烯酸烯酸-co-3烯胺,乙烯酸-co-N,N-二甲基烯胺 (P-VA-co-AAPBA-co-DMA),烯酸和聚乙烯醇 (PVA) 合成了水凝,通过动态的希夫基和酸乙烯基结合物进行交叉链接.
- 将甲酸 (DEX) 纳入水凝矩阵中.
- 评估了水凝的特性,包括可降解性,质性,组织粘附性,pH/ROS反应性和DEX释放动力学.
- 评估了体外和体外生物相容性,对病原细菌的抗感染功效,以及在细菌感染模型中促进伤口愈合.
主要成果:
- 该PVBDL凝表现出优异的可降解性,稳定的形学和适当的组织粘附性.
- 水凝显示了pH / ROS反应性质和DEX的受控释放.
- 在体外和体内实验证实了水凝的良好的生物相容性和强大的抗感染能力,在3小时内消除99.9%的致病细菌.
- 该PVBDL凝有效地促进了细菌感染伤口的修复和再生.
结论:
- 开发的PVBDL凝是一种多功能注射液凝,具有治疗细菌感染伤口的巨大潜力.
- 它的双重pH / ROS反应能力,结合抗菌和抗炎性质,有助于有效的伤口愈合和组织再生.
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