通过聚焦的旋转喷气旋转重建心脏的螺旋结构功能关系
Huibin Chang1, Qihan Liu1,2, John F Zimmerman1
1Disease Biophysics Group, John A. Paulson School of Engineering and Applied Science, Harvard University, Boston, MA 02134, USA.
Science (New York, N.Y.)
|July 20, 2022
概括
在工程心室中螺旋肌肉对齐提高了效率. 聚焦旋转喷气旋转 (FRJS) 制造出这些复杂的3D结构, 推进心脏修复的组织工程.
科学领域:
- 生物医学工程
- 心血管研究
- 组织工程
背景情况:
- 心脏肌肉的螺旋对齐被认为是为了优化心脏的动.
- 复制心脏复杂的微观结构是组织工程的一个重大挑战.
研究的目的:
- 在工程心室中研究螺旋和周围肌肉对齐的功能影响.
- 引入聚焦旋转喷气织 (FRJS) 作为制造有控制对齐的3D微/纳米纤维支架的方法.
主要方法:
- 聚焦旋转喷气旋转 (FRJS) 用于创建具有可编程纤维对齐的3D支架.
- 心肌细胞被种植在支架上以生物制造组织工程心室.
- 对心脏功能进行了比较.
主要成果:
- 螺旋对齐的工程心室表现出更均的变形.
- 在螺旋对齐的模型中观察到更大的尖端缩短和增加的射出分数.
- FRJS在复杂的3D几何结构中有效控制了纤维的排列.
结论:
- 螺旋式肌肉结构显著提高了心脏表现.
- FRJS提供了一种精简的方法来制造功能性的组织工程器官.
- 这项研究证实了螺旋结构对有效心脏功能的重要性.
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