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一种基于纳米纤维/水凝的多功能双层治疗包裹作为下一代皮肤伤口护理生物材料
Dimpy Bhardwaj1, Vatan Chawla2, Vanshika Nandwani1
1School of Chemical Sciences and Advanced Materials Research Centre, Indian Institute of Technology Mandi, Mandi, 175075, Himachal Pradesh, India. garima@iitmandi.ac.in.
Journal of materials chemistry. B
|September 1, 2025
概括
一种新的双层包裹结合了纳米纤维和水凝层,以加快感染性伤口的愈合,显示出增强的强度,抗菌性质,并促进细胞生长以更快地恢复.
科学领域:
- 生物材料科学
- 复原医学
- 伤口护理技术
背景情况:
- 感染性伤口对医疗保健构成重大挑战,而抗生素耐药性则加剧了这一问题.
- 目前的治疗方法往往在促进有效及时的伤口关闭方面存在局限性.
- 模仿自然皮肤结构对于先进的伤口愈合策略至关重要.
研究的目的:
- 开发和描述一种用于增强感染性伤口愈合的新型双层包裹.
- 结合纳米纤维和水凝组件, 创建一个仿生皮肤结构.
- 评估开发的双层包装的机械,物理和生物特性.
主要方法:
- 一个双层包装的制造,其中包括一个基托/凝纳米纤维层和一个含有ursodeoxycholic acid和碳点的水凝.
- 通过希夫基交联四元化酸盐和氧化酸盐的水凝合成.
- 机械性质 (拉伸强度,延长),胀,多孔性,抗氧化活性,血中兼容性,血静,细胞增殖,抗菌效果和体外伤口关闭的评估.
主要成果:
- 与单个层相比,双层包装显著改善了拉伸强度和破裂延伸.
- BL表现出高胀能力,多孔性,抗氧化活性,以及优秀的反应性氧物种清理能力.
- 包裹显示出良好的血液兼容性,血静潜力,增强L929细胞活力 (130%) 和强大的抗菌活性对大肠杆菌和黄金色杆菌 (92%和88%的有效性).
- 在实验室的测试表明伤口快速关闭,达到大约97%的关闭.
结论:
- 开发的双层包裹整合了纳米纤维和水凝功能,有效地模仿皮肤结构.
- 它具有卓越的机械,抗氧化,抗菌和细胞增殖特性, 对于伤口愈合至关重要.
- 这种多功能双层包裹显示出加速感染性伤口愈合的巨大潜力.
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