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相关概念视频

Peptide Bonds02:43

Peptide Bonds

74.4K
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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Protein Organization01:24

Protein Organization

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Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence....
6.5K
Hydrogen Bonds01:04

Hydrogen Bonds

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A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
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Protein and Protein Structure02:15

Protein and Protein Structure

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Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme...
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Protein Folding01:22

Protein Folding

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Overview
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Noncovalent Attractions in Biomolecules02:35

Noncovalent Attractions in Biomolecules

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Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
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酸与结合的有机框架.

Thangavel Vijayakanth1, Sneha Dasgupta2, Pragati Ganatra3

  • 1Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv-6997801, Israel. vijayakantht@mail.tau.ac.il.

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概括

基于的多孔框架 (P-HPF) 提供可调节的,生物相容的材料用于气体储存和性应用. 本综述探讨了P-HPF使用短,折叠和折叠的进展,强调了它们的潜力和挑战.

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A Tripeptide-Stabilized Nanoemulsion of Oleic Acid
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科学领域:

  • 材料科学 材料科学 材料科学
  • 超分子化学 超分子化学
  • 生物材料工程 生物材料工程

背景情况:

  • 结合多孔框架 (HPF) 是具有广泛应用的多功能晶体材料.
  • 传统的HPF在创建合组件和生物相容材料方面面临着挑战.
  • 基于的气结合多孔框架 (P-HPF) 由于其固有的性和生物相容性而成为有前途的替代方案.

研究的目的:

  • 审查基于的多孔框架 (P-HPFs) 的最新进展.
  • 突出P-HPF在气体储存,合识别,分离和医疗应用中的实用性.
  • 讨论P-HPF领域的设计挑战和未来研究方向.

主要方法:

  • 从超短 (≤3氨基酸),折叠和折叠中构建的P-HPF集中在文献的审查.
  • 在灵活的,超短基P-HPF中分析可适应的多孔拓.
  • 检查P-HPF的设计策略,包括更长的,折叠的.

主要成果:

  • 基于超短的P-HPF表现出具有适应性的多孔结构,能够容纳客分子并捕获温室气体.
  • 由于其内在的性,P-HPF具有显著的性识别和分离潜力.
  • 折叠和折叠胺为新的P-HPF架构和功能提供了独特的机会.

结论:

  • 基于的多孔框架 (P-HPF) 为先进材料提供了一个可调和生物相容的平台.
  • 使用各种基构建的P-HPF的开发显示出对各种应用的巨大希望,包括环境修复和医学.
  • 对设计策略的进一步研究和理解结构-属性关系的进一步研究将释放P-HPF的全部潜力.