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相关概念视频

Mechanisms of Membrane Domain Formation00:59

Mechanisms of Membrane Domain Formation

Different physical properties of lipids and proteins allow them to localize and form distinct islands or domains in the membrane. Some membrane domains are formed due to protein-protein interactions, whereas others are formed due to the presence of specific lipids such as sphingolipids and sterols—for example, large proteins, such as bacteriorhodopsin, aggregate and create distinct domains.
Another mechanism for membrane domain formation involves membrane proteins interacting with cytoskeletal...
Peptide Identification Using Tandem Mass Spectrometry01:33

Peptide Identification Using Tandem Mass Spectrometry

Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...

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相关实验视频

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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
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Published on: November 21, 2013

通过通过界面溶剂结构介导的小来识别特定材料.

Julian Schneider1, Lucio Colombi Ciacchi

  • 1Hybrid Materials Interfaces Group, Faculty of Production Engineering and Bremen Center for Computational Materials Science, University of Bremen, D-28359 Bremen, Germany.

Journal of the American Chemical Society
|January 14, 2012
PubMed
概括
此摘要是机器生成的。

小通过在接口处感知局部溶剂密度来识别材料. 这项研究揭示了RKLPDA是如何选择性地与结合而不是结合的,为设计新材料提供了洞察力.

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Insights into the Interactions of Amino Acids and Peptides with Inorganic Materials Using Single-Molecule Force Spectroscopy
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Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy
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Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy

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科学领域:

  • 生物分子模拟的模拟.
  • 材料科学是一种材料科学.
  • 表面化学 表面化学

背景情况:

  • -材料相互作用对于纳米技术和生物材料至关重要.
  • 了解表面识别的精确机制对于合理设计至关重要.

研究的目的:

  • 阐明控制固体/液体界面上的特异性材料识别的原子级原则.
  • 确定RKLPDA与 (Ti) 相比于 (Si) 结合的选择性的来源.

主要方法:

  • 使用了元动力学和指导分子动力学模拟.
  • 使用了原生氧化Ti和Si表面的现实模型.
  • 计算了吸附自由能量和粘附力.

主要成果:

  • 固体/液体界面上的局部溶剂密度变化决定了的特定材料识别.
  • 量化解释了RKLPDA对Ti而不是Si的选择性.
  • 模拟结果与实验数据有很好的一致性.

结论:

  • 已经确定了材料选择性设计的结构功能关系.
  • 这些发现为设计具有量身定制材料特异性的提供了基础.
  • 这项工作对纳米技术和材料科学应用有重大影响.