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一种可3D打印的组织粘合剂.

Sarah J Wu1, Jingjing Wu1, Samuel J Kaser2

  • 1Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.

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概括
此摘要是机器生成的。

一种新的3D打印可用的组织粘合剂为潮湿和出血的组织提供了多功能,可适应和强大的粘合. 这种先进的生物材料使可编程生物粘合剂贴片和设备能够改善伤口关闭和组织修复.

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科学领域:

  • 生物材料科学 生物材料科学
  • 再生医学是一种再生医学.
  • 手术创新 在外科创新.

背景情况:

  • 和是组织修复的标准,但有局限性.
  • 现有的组织粘合剂 (粘合剂,水凝) 缺乏多功能性和设计灵活性.
  • 需要具有可编程架构和增强功能的先进粘合剂.

研究的目的:

  • 开发一种直接使用墨水写字3D打印的可打印组织粘合剂.
  • 使用可编程架构创建可定制的生物粘合贴片和设备.
  • 评估粘合剂在组织密封,粘合强度,生物相容性和适用于出血组织中的性能.

主要方法:

  • 使用直接墨水写技术制造3D打印的组织粘合剂.
  • 评估粘附于湿组织,符合性,伸展性和生物相容性.
  • 在老鼠气管和结肠缺陷模型上的体内测试,以评估液密密封和粘附持续时间.
  • 整合一个排血的疏水基质,以解决出血的组织.

主要成果:

  • 这种3D打印粘合剂在几秒钟内对湿组织产生了强大的粘合力.
  • 打印的生物粘合剂贴片在体内提供了密封液体密封,保持粘附时间超过4周.
  • 这种粘合剂表现出良好的生物相容性,并且具有可塑性和可拉伸性.
  • 带有疏水基质的贴片成功地封闭了活跃出血的组织.

结论:

  • 一个多功能3D可打印的组织粘合平台已经开发出来.
  • 这项技术使可编程生物粘合剂贴片和装置的特定应用设计成为可能.
  • 该粘合剂显示出关闭伤口,密封组织和与组织接口设备集成的巨大潜力.