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相关概念视频

Peptide Bonds02:43

Peptide Bonds

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A peptide bond covalently attaches amino acids through a dehydration reaction. One amino acid's carboxyl group and another amino acid's amino group combine, releasing a water molecule. The resulting bond is the peptide bond. The products that such linkages form are peptides. As more amino acids join this growing chain, the resulting chain is a polypeptide. Each polypeptide has a free amino group at one end. This end has the N-terminal, or the amino-terminal, and the other end has a free...
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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
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通过分子设计调节化学燃料组件

Kun Dai1, Jennifer Rodon Fores1, Caren Wanzke1

  • 1Department of Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748 Garching, Germany.

Journal of the American Chemical Society
|August 14, 2020
PubMed
概括

研究人员制定了燃料驱动自组合的设计规则. 通过调整互动,可以控制系统组装,保持组装或不组装,为自主材料铺平道路.

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科学领域:

  • 生物材料科学
  • 超分子化学
  • 化学工程

背景情况:

  • 生物系统使用燃料驱动的组件,
  • 由生物系统启发的合成自我组装缺乏明确的设计原则,通常依赖于偶然的发现.
  • 开发可预测的合成自组合规则对于创建先进材料至关重要.

研究的目的:

  • 通过燃料驱动的反应循环建立明确的设计规则来控制的自组装.
  • 展示如何改变间相互作用可以决定组装结果.
  • 为设计具有生命特性的自主材料提供框架.

主要方法:

  • 在燃料驱动的反应周期下研究了的自我组装动力学.
  • 系统地改变了之间的吸引力和排斥性相互作用的比率.
  • 分析了不同交互比率的系统行为,包括没有组装,消散组装和永久组装.
  • 在自组装能源景观的背景下解释发现.

主要成果:

  • 成功展示了可预测的自组合的设计规则.
  • 通过调整交互参数,展示了可以切换组装行为 (无组装,消散,永久) 的能力.
  • 证实这些规则可以对不同的序列进行概括.
  • 将观察到的组装行为与潜在的能源景观原则联系起来.

结论:

  • 建立了燃料驱动自组装的定量设计规则.
  • 能够精确控制自我组装过程,
  • 奠定了开发可调节,类似生命的新型自主材料的基础.