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Using Synthetic Biology to Engineer Living Cells That Interface with Programmable Materials
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基于蛋白质的基因工程生物粘合剂具有可编程材料特性.

Juya Jeon1, Kok Zhi Lee1, Xiaolu Zhang1

  • 1Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, One Brookings Drive, Saint Louis, Missouri 63130, United States.

ACS applied materials & interfaces
|December 1, 2023
PubMed
概括
此摘要是机器生成的。

研究人员开发了可调的丝-粉样蛋白-足蛋白 (SAM) 水凝,用于手术修复. 修改蛋白序列可以控制水凝的特性,增强先进生物粘合剂的强度和水下粘合力.

关键词:
粉样蛋白β-类.生物粘合剂生物粘合剂贝脚蛋白质是贝脚的蛋白质之一.可编程材料的特性.蛋白质材料是一种蛋白质材料.合成生物学 合成生物学水下粘合剂水下粘合剂

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科学领域:

  • 生物材料科学 生物材料科学
  • 蛋白质工程是指蛋白质的工程.
  • 组织工程是组织工程.

背景情况:

  • 丝-粉样蛋白-贝脚蛋白 (SAM) 水凝提供了独特的调节性质,生物相容性和强大的水下粘附性的组合.
  • 了解蛋白序列和水凝特性之间的关系对于设计有效的手术生物粘合剂至关重要.

研究的目的:

  • 制造和特征SAM水凝具有不同的丝粉样蛋白重复长度和贝脚蛋白 (Mfp) 长度.
  • 阐明控制SAM水凝性能的序列结构属性关系.

主要方法:

  • 制造SAM水凝使用融合蛋白与控制的丝粉样蛋白重复和Mfp长度.
  • 水凝结构的表征 (例如,β-sheet含量) 和机械性能 (例如,凝聚力,性,最终强度,最终应变).
  • 对生物表面 (猪皮) 的水下粘附的评估.

主要成果:

  • 增加丝粉样重复剂显著增强β-片含量,导致更好的凝聚力和性.
  • 延长Mfp长度超过一定的点降低了β-sheet含量,但增强了表面粘附性.
  • 一个特定的变体 (16xKLV-2Mfp) 显示出高最终强度 (3.0 MPa),应变 (664%) 和水下粘附 (416 kPa).

结论:

  • 这项研究确立了SAM水凝的清晰的序列-结构-特性关系.
  • 这些发现为设计用于手术应用的定制蛋白质基粘合剂提供了基础.
  • 优化的SAM水凝显示出作为组织修复先进生物粘合剂的前景.