基于凝的氧气和药物输送敷料,以改善伤口愈合
Wen Ren1,2, Mia Sands1,2, Xiaoxue Han1,2
1Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States.
ACS omega
|June 10, 2024
概括
一种新的Carbopol水凝伤口带提供氧气纳米泡和原酶,加速伤口愈合. 这种"纳米高压"系统在临床前模型中增强了细胞迁移和组织再生.
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.
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 有效的伤口愈合需要足够的氧气供应和酶活性.
- 目前的伤口包裹往往缺乏多功能功能,无法满足复杂的愈合需求.
- 开发治疗剂的先进输送系统对于改善患者的治疗结果至关重要.
研究的目的:
- 开发和评估基于Carbopol水凝的系统,以持续提供氧气和原酶,以改善伤口愈合.
- 在体外和体内研究嵌入氧气纳米泡的卡博波尔水凝与原酶 (ONB-CC) 的疗效.
- 评估这种新型伤口带作为加速组织修复的治疗材料的潜力.
主要方法:
- 用氧气纳米泡 (ONBs) 和原酶 (ONB-CC) 装载的卡博波尔水凝的制造.
- 随着时间的推移,氧释放动力学和原酶活性的表征.
- 使用人类皮肤纤维细胞 (HDFa) 进行体外评估,包括细胞活力和痕检测.
- 在老鼠伤口模型中的体内评估,包括伤口闭合测量和本病理学分析.
主要成果:
- 该ONB-CC系统显示持续释放氧气长达3周,并保持原酶活性17天.
- 实验室研究表明,ONB-CC促进了细胞迁移和划痕关闭,对细胞活力没有不利影响.
- 在老鼠体内研究显示,伤口快速关闭,增强了再表皮化,改善了新血管化和毛囊形成.
结论:
- 在ONB-CC系统有效地集成氧气纳米输送和原酶为协同作用的伤口愈合效应.
- 这种基于Carbopol水凝的纳米高压系统显示出作为先进的伤口包裹材料的巨大潜力.
- ONB-CC的多功能性质为加速复杂的伤口愈合过程提供了一个有希望的策略.
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