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使用直接写作和电方法制造基于凝的抗菌双层伤口包裹
Saeed Seifi1, Mohammad Shahverdi2, Hossein Shaygani1
1Nano-Bioengineering Lab, School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran; Stem Cell and Regenerative Medicine Institute, Sharif University of Technology, Tehran 11155-9161, Iran.
International journal of pharmaceutics
|May 27, 2024
概括
这项研究开发了一种新的3D打印伤口包裹,它结合了凝和聚氨. 创新的纤维支架促进细胞活动,并表现出显著的抗菌特性,加速伤口愈合.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 伤口愈合 治愈 伤口愈合
背景情况:
- 完全厚度的伤口需要先进的带来加速愈合.
- 现有的治疗方法往往缺乏必要的结构支持和抗菌性质.
- 模仿细胞外基质的纤维支架对于细胞再生至关重要.
研究的目的:
- 开发一种新的3D打印纤维性伤口包裹,用于增强全厚伤口愈合.
- 将凝,聚氨和氧化纳米颗粒的好处结合到一个分层的脚手架中.
- 为了创建一个有可控孔径,机械稳定性,氧气透性和抗菌活性的支架.
主要方法:
- 一个经过修改的具有气动注射的材料挤出装置被用来3D打印一个凝底层.
- 聚氨 (PU) 和凝的联合电形成了机械支和再生的上层.
- 氧化纳米颗粒 (ZnO) 被纳入3D打印的底层,以产生抗菌作用.
主要成果:
- 通过3D打印的底层实现了可控制的多孔性 (约. 127μm) 模仿自然组织的细胞外基质.
- 复合带显示出对S. aureus,大肠杆菌,细菌细菌和 Pseudomonas有显著的抗菌活性.
- 脚手架与纤维细胞具有出色的生物相容性,在7天后显示大约89%的细胞活力.
结论:
- 开发的3D打印纤维性伤口包裹有效支持细胞活动并促进伤口愈合.
- 凝,PU和ZnO的组合为伤口护理提供了一种协同方法,提供结构完整性,再生潜力和抗菌作用.
- 这种创新性的脚手架代表了治疗全厚伤口的有希望的进步.
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