使用生物医学应用的Genipin交叉连接,提高电基托-多烯酸支架的稳定性和机械强度
Nagalekshmi Uma Thanu Krishnan Neela1, Piotr K Szewczyk1, Joanna E Karbowniczek1
1Faculty of Metals Engineering and Industrial Computer Science, AGH University of Krakow, al. A. Mickiewicza 30, Krakow, 30-059, Poland.
Macromolecular rapid communications
|December 27, 2024
概括
这项研究通过使用基尼交叉链接来增强素 (CS) 和聚烯 (PCL) 纳米纤维支架. 改进的支架显示出增加的稳定性,机械强度和生物相容性,用于组织工程应用.
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.
- 纳米技术纳米技术
背景情况:
- 电纳米纤维支架在生物医学领域至关重要,提供高表面积和可调节性质.
- 酸盐 (CS) 是一种常见的生物材料,但其快速降解阻碍了其应用.
- 聚烯酸 (PCL) 是一种可生物降解的聚,通常与CS混合,以改善脚手架的性能.
研究的目的:
- 为了增强奇托 (CS) 和聚烯 (PCL) 的稳定性和机械性能,电纳米纤维支架.
- 调查基因交联对脚手架形态,化学结构和机械性能的影响.
- 评估改造的支架的生物相容性和适合性,用于组织工程和伤口愈合.
主要方法:
- CS+PCL电纳米纤维支架的制造.
- 基尼平交叉连接,以提高脚手架的稳定性.
- 使用扫描电子显微镜 (SEM),富里埃变换红外光谱 (FTIR),机械测试和泽塔电位测量进行表征.
- 在实验室中使用小鼠NIH 3T3纤维细胞进行细胞毒性检测.
主要成果:
- SEM证实了统一的纤维形态.
- FTIR分析表明,在中和和交叉链接后,三酸残留物被成功消除.
- 与纯CS相比,交叉链接的CS+PCL支架显示拉伸强度增加了350%.
- 泽塔电位达到 -26.27 mV,有利于细胞发育.
- 细胞毒性测定表明细胞活力良好,表明生物相容性.
结论:
- Genipin交叉连接显著提高了CS+PCL纳米纤维支架的稳定性和机械性能.
- 修改后的支架没有细胞毒性残留物,并且表现出有利于细胞附着和增殖的特性.
- 这些稳定,功能性和生物相容的CS + PCL支架显示了高级组织工程和伤口愈合应用的巨大潜力.
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