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通过生物组织屏障通过基于氨酸的水凝的光交叉连接
Alexander G Savelyev1, Anastasia V Sochilina1,2,3, Gulalek Babayeva4,5
1National Research Centre "Kurchatov Institute", 123182, Akademika Kurchatova Sq. 1, Moscow, Russia. khaydukov@mail.ru.
Biomaterials science
|January 13, 2025
概括
这项研究引入了用于组织工程的新型光交联式水凝,使可见光使用的体内支架形成成为可能. 开发的 hialuronic 酸水凝是安全和有效的微创手术.
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.
- 摄影化学的使用.
背景情况:
- 氨酸水凝对于组织工程至关重要,但使用紫外线或蓝光的传统光固化方法在体内是有限的,因为组织吸收光.
- 在体内应用中,开发在组织透明度窗口内运行的可光交叉链接系统是必不可少的.
研究的目的:
- 开发和评估可光交叉链接的氨酸水凝,使用近红外区域活跃的光敏化剂,用于体内应用.
- 通过生物组织障碍来证明静脉水凝光印和支架形成的可行性.
主要方法:
- 合成了 hialuronic acid glycidyl methacrylate (HAGM),并评估了 670 nm 附近的激进聚合物的光发起剂的氨酸甲.
- 研究了共同发起剂 (二二甲醇,二甲乙醇) 对降低HAGM交叉连接的辐射剂量的作用.
- 评估了BALB/c小鼠的水凝特性 (Young的模量),细胞活力 (HaCaT细胞) 和体内性能,包括安全性和降解.
主要成果:
- 在使用联合发起者时,二甲氨酸使HAGM交叉连接有效,辐射剂量降低 (降至80 J cm-2).
- 获得软组织类机械性质 (270460 kPa),并在光交联过程中证明了细胞活力.
- 在体内研究证实了辐射剂量和水凝成分的安全性,支架保持了一个多月的形状.
结论:
- 开发的系统允许通过可见光通过生物组织障碍物形成微创性,静脉内支架.
- 这项技术为先进的组织工程和再生医学应用提供了有前途的方法.
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