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関連する概念動画

Assembly of Cytoskeletal Filaments01:18

Assembly of Cytoskeletal Filaments

21.4K
Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate with other similar filaments to form rigid structures. Microfilaments, made of actin monomers, rely on actin-binding proteins to form bundles and create networks of individual actin filaments. Microtubules rely on microtubule-associated proteins (MAPs) to form sturdy cylindrical structures. However, the proteins involved in forming complex...
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Formation of Higher-order Actin Filaments01:11

Formation of Higher-order Actin Filaments

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The polymerization of G-actin monomers into filamentous F-actin is a multi-step process. Once the F-actins are formed, they can bundle together in different arrangements to form higher-order networks and regulate cellular functions. Common examples include the formation of lamellipodia and filopodia at the cell's leading edge by actin reorganization in a migrating cell. The microvilli on the brush border epithelial cells are also formed through the F-actin network.
The high-order actin...
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Formation of Intermediate Filaments00:57

Formation of Intermediate Filaments

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Intermediate filaments are cytoskeletal proteins with higher tensile strength and flexibility than microfilaments and microtubules. Unlike the other two cytoskeletal proteins, intermediate filament formation lacks the enzymatic activity to hydrolyze nucleotides like ATP and GTP to generate energy for polymerization. Therefore, the formation of intermediate filaments is multistep self-assembly. The involvement of any accessory proteins in intermediate filament formation has not yet been...
3.2K
Network Covalent Solids02:18

Network Covalent Solids

14.6K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
14.6K
Metallic Solids02:37

Metallic Solids

18.7K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
18.7K
Protein Complex Assembly02:41

Protein Complex Assembly

10.9K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
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関連する実験動画

Updated: Sep 13, 2025

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
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Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Published on: July 10, 2017

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協和有機フレームワーク粒子を二次順序の超構造に組み立てる

Javier Fonseca1, Tingchuan Zhou2, Bingyang Lu1

  • 1Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China.

Journal of the American Chemical Society
|July 29, 2025
PubMed
まとめ
この要約は機械生成です。

協和有機フレームワーク (COF) 粒子と金属有機フレームワーク (MOF) 粒子は,バイナリな上層構造に組み合わされる. この突破により,高度な応用のために 調整可能な性質を持つ新型のハイブリッドの多孔性材料が作られます

さらに関連する動画

Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides

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Author Spotlight: Exploring Self-Assembled MOF-Polymer Composites
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Author Spotlight: Exploring Self-Assembled MOF-Polymer Composites

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関連する実験動画

Last Updated: Sep 13, 2025

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
08:42

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Published on: July 10, 2017

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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides

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Author Spotlight: Exploring Self-Assembled MOF-Polymer Composites
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科学分野:

  • 材料科学
  • ナノテクノロジー
  • 超分子化学

背景:

  • 多構成要素のオーダーされた上部構造は,構成要素の構成要素によって決定される性質を持つコロイド粒子によって形成されます.
  • 協和有機フレームワーク (COF) は,調節性特性を有する結晶性多孔ポリマーである.
  • メタル・オーガニック・フレームワーク (MOF) は,金属イオンと有機結合物質からなる多孔性結晶材料である.

研究 の 目的:

  • 協和有機フレームワーク (COF) 粒子が二次的に秩序付けられた上部構造に組み合わさることを実証する.
  • COF粒子と金属有機枠 (MOF) 粒子の共組を調査する.
  • ハイブリッドの多孔性材料の設計空間を広げるため

主な方法:

  • 閉じ込められた空間内の溶媒の蒸発は,COF粒子の共同組み立てを誘導するために使用されました.
  • 2D COF-COF 上部構造のステキオメトリを制御するために粒子のサイズ比を調整した.
  • COFとMOFの共同組み立て実験が行われました.

主要な成果:

  • 2D COF-COFバイナリオーダーされた上部構造をエントロピック制御によって異なるステキオメトリー (LS2とLS6) で達成した.
  • COFとMOFの共同組成が初めて成功したと報告した.
  • LS2ステキオメトリーで2DCOF-MOFバイナリオーダーされた上部構造を製造した.

結論:

  • COFの粒子は二重構造に組み合わされ,材料設計の新たな道を開くことができます.
  • COFとMOFの共同組み立ては,ハイブリッドの多孔性材料の作成における重要な進歩を表しています.
  • この作業により,多種多様なCOF粒子から複雑なバイナリ・スーパーストラクチャの構築が可能になり,その応用の可能性が広がります.