凝甲基烯基 - 硫化石墨烯氧化物复合材料用于软组织工程
Ayoub Shiravandi1, Ibrahim Zarkesh2, Melina Ghasemian3
1Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran; Department of Medical Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
Methods (San Diego, Calif.)
|October 13, 2025
概括
这项研究引入了使用硫化石墨烯氧化物纳米片 (tGONS) 作为交叉链接器的增强的凝甲基烯基 (GelMA) 水凝. 这些新型复合水凝为软组织工程应用提供了更好的机械强度和抗氧化特性.
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:
- 软组织工程需要先进的水凝来进行组织再生.
- 凝甲基烯基 (GelMA) 水凝看起来很有前途,但有机械限制.
- 硫化石墨烯氧化物纳米片 (tGONS) 被作为复合材料添加剂进行了探索.
研究的目的:
- 使用tGONS.开发基于GelMA的复合水凝,具有增强的机械和抗氧化性能.
- 为了研究tGONS作为GelMA矩阵中的共价交叉连接器的作用.
- 评估新型复合水凝的细胞相容性和降解耐受性.
主要方法:
- 合成的GelMA-tGONS复合水凝与tGONS作为共价交叉连接剂.
- 量化机械性能 (斯模量,凝分数,延长).
- 评估了抗氧化活性 (DPPH,H2O2清除) 和细胞相容性 (>85%的细胞活力).
- 评估了酶降解耐受性和胀行为.
主要成果:
- 优化的tGONS度 (≤0.5 mg/mL) 显著增加了的模量和凝分数.
- 观察到抗氧化活性显著增强 (高达40%的DPPH,60%的H2O2清理).
- 保持了可接受的延长和高细胞相容性.
- 提高对酶降解的抵抗力和减少胀.
结论:
- 凝MA-tGONS复合水凝提供可调整的物理化学特性和增强的功能.
- 这些水凝为软组织工程提供了坚固而适应性的支架.
- 潜在的应用包括软骨,皮肤和神经组织再生.
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