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関連する概念動画

The Fluid Mosaic Model01:34

The Fluid Mosaic Model

The fluid mosaic model was first proposed as a visual representation of research observations. The model comprises the composition and dynamics of membranes and serves as a foundation for future membrane-related studies. The model depicts the structure of the plasma membrane with a variety of components, which include phospholipids, proteins, and carbohydrates. These integral molecules are loosely bound, defining the cell’s border and providing fluidity for optimal function.
Pinocytosis00:43

Pinocytosis

Cells use energy-requiring bulk transport mechanisms to transfer large particles, or large amounts of small particles, into or out of the cell. The cells envelop the particles in spherical membranes called vesicles or vacuoles. Vesicles that transport material into the cell are built from the cell membrane. These vesicles encapsulate external molecules and transport them into the cell in a process called endocytosis.
Membrane Fluidity01:26

Membrane Fluidity

Membrane fluidity is explained by the fluid mosaic model of the cell membrane, which describes the plasma membrane structure as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.
Mosaic nature of the membrane
The mosaic characteristic of the membrane helps the plasma membrane remain fluid. The integral proteins and lipids exist as separate but loosely-attached molecules in the membrane. The membrane is a relatively...

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関連する実験動画

Updated: May 13, 2026

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

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細胞マイクロ構造の液体誘導によるトポロジカル変換

Shucong Li1, Bolei Deng2, Alison Grinthal2

  • 1Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA.

Nature
|April 15, 2021
PubMed
まとめ

研究者は液体を使って 細胞物質のトポロジを逆転させる新しい方法を開発した. この技術により 材料の特性や 情報の暗号化や 選択的粒子捕捉などの 動的制御が可能になります

さらに関連する動画

Spontaneous Formation and Rearrangement of Artificial Lipid Nanotube Networks as a Bottom-Up Model for Endoplasmic Reticulum
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Tuning the Contractility and Deformation Modes of Active Actin-Based Assemblies In Vitro: From Two-Dimensional Active Networks to Liquid Crystal Drops
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Tuning the Contractility and Deformation Modes of Active Actin-Based Assemblies In Vitro: From Two-Dimensional Active Networks to Liquid Crystal Drops

Published on: July 11, 2025

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関連する実験動画

Last Updated: May 13, 2026

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

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Tuning the Contractility and Deformation Modes of Active Actin-Based Assemblies In Vitro: From Two-Dimensional Active Networks to Liquid Crystal Drops
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Published on: July 11, 2025

618

科学分野:

  • 材料科学
  • 柔らかい物質の物理
  • エンジニアリング

背景:

  • 細胞物質のトポロジーは,物理的および輸送特性に大きな影響を与える.
  • 既存の方法は形を変えますが 基本的な接続性は変わりません
  • トポロジカル・トランスフォーメーションには,特にノードで,複雑な材料の再編成が必要です.

研究 の 目的:

  • 細胞の微小構造における逆転可能なトポロジカル変換のための新しい戦略を導入する.
  • 様々な材料と幾何学的な接続性を 体系的に変えられるようにする.
  • 調節可能な性質と機能を持つダイナミックな細胞構造を開発する.

主な方法:

  • 液体の浸透と毛細血管の力を伴う 二層のダイナミックな戦略です
  • 分子スケールでの材料の可塑化と 建築スケールでの再構成が続きます
  • リバーシビリティと時間的な制御のために,制御された蒸発と液体の再適用.

主要な成果:

  • 様々な格子幾何学と反応性のある材料で体系的な可逆的トポロジカル変換を証明した.
  • ゲオメトリ,硬さ,毛細血管力を結びつける一般的理論モデルを開発した.
  • 情報暗号化,粒子捕捉,バブル解放のための活性表面を作成しました.

結論:

  • 提案された方法は 細胞物質のトポロジーを前例のない方法で制御できます
  • ダイナミック・トポロジーは,調整可能な機械的,化学的,音響的性質を持つ材料を設計するための新しい道を提供します.
  • このアプローチは,高度な製造と機能的な表面に潜在的な応用があります.