聚合菌体的接依赖的活体超分子自组
Zhengmin Tang1, Liang Gao1, Jiaping Lin1
1Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
Journal of the American Chemical Society
|September 2, 2021
概括
研究人员在表面上实现了聚合物细胞的自组合,模仿了自然细胞生长抑制. 微粒的长度可以根据基质的疏水性进行调整,从而使复杂的结构制造成为可能.
科学领域:
- 超分子化学
- 材料科学
- 聚合物科学
背景情况:
- 根基依赖的接触抑制生长是一种自然现象,限制了表面的细胞增殖.
- 这种受控的生长没有通过合成聚合物菌实现.
- 开发模仿这种生物行为的合成系统对于先进的材料制造至关重要.
研究的目的:
- 报告长长的聚合物微粒在疏水基质上受控的活体超大分子自组.
- 研究细胞生长的机制及其对基质特性的依赖.
- 为了展示可调节的膜长度,
主要方法:
- 利用疏水基质和分散的菌根聚合物之间的协同作用,以控制吸附和自我组装.
- 研究了基质上的种子形成和随后的活生生的生长.
- 使用布朗动态模拟来了解聚合和融合机制.
- 多样化基质疏水性以控制长度.
主要成果:
- 在水基板上实现了带有液晶核的延长型细胞的受控活体自我组装.
- 通过聚合物吸附和重新排列来诱导种子形成.
- 观察到活生生的,可控的菌生长,直到基质接触被破坏.
- 布朗的动态模拟显示,在定种子的两端的聚合推动了生长.
- 通过改变基质的疏水性,成功调整了细胞的长度.
结论:
- 开发了一种新的超大分子自我组装方法,模仿使用聚合物细胞的接触抑制生长.
- 该系统允许活生生的,可控制的生长和可调节的菌体尺寸.
- 这种方法是从自组装材料制造复杂有序结构的重要一步.
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