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関連する概念動画

Mechanical Protein Functions01:58

Mechanical Protein Functions

5.8K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force. 
5.8K
Machines01:19

Machines

614
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
A free-body diagram of the...
614
The Movement of Organelles and Vesicles01:43

The Movement of Organelles and Vesicles

6.9K
In eukaryotic cells,  cytoskeletal filaments such as actin, microtubules, and intermediate filaments form a mesh-like cytoskeletal network. These filaments serve as tracks for transporting cellular cargo. Specialized motor proteins use the chemical energy stored in adenosine triphosphate (ATP) for this transport. During interphase, microtubules are polarized, with the plus-end towards the cell periphery and the minus-end towards the cell center. Two microtubule-associated motor proteins,...
6.9K
Chemistry of the Cell02:58

Chemistry of the Cell

49.3K
The cell is chemically composed of water, organic molecules and inorganic ions.
Water
The polarity of the water molecule and its resulting hydrogen bonding makes water a unique substance with special properties that are intimately tied to the processes of life. Life originally evolved in an aqueous environment, and most of an organism’s cellular chemistry and metabolism occur inside the aqueous contents of the cell’s cytoplasm. Special properties of water are its high heat capacity...
49.3K
ATP and Macromolecule Synthesis01:28

ATP and Macromolecule Synthesis

7.1K
Biological macromolecules are organic compounds, predominantly composed of carbon atoms. The carbon atoms are covalently bonded with hydrogen, oxygen, nitrogen, and other minor elements. There are four major biological macromolecule classes: carbohydrates, lipids, proteins, and nucleic acids.
Most macromolecules are composed of single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers.
Conversion of...
7.1K
Chemiosmosis01:32

Chemiosmosis

115.7K
Oxidative phosphorylation is a highly efficient process that generates large amounts of adenosine triphosphate (ATP), the basic unit of energy that drives many cellular processes. Oxidative phosphorylation involves two processes— the electron transport chain and chemiosmosis.
Electron Transport Chain
The electron transport chain involves a series of protein complexes on the inner mitochondrial membrane that undergo a series of redox reactions. At the end of this chain, the electrons...
115.7K

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Updated: Mar 2, 2026

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging
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Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

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化学 的 に 駆動 する 分子 と 機械

Krishna Kanti Dey1, Ayusman Sen2

  • 1Department of Physics, Indian Institute of Technology Gandhinagar , Palaj, Gandhinagar 382355, Gujarat, India.

Journal of the American Chemical Society
|May 12, 2017
PubMed
まとめ
この要約は機械生成です。

合成活性物質は 生物学的システムを模倣し 化学エネルギーをナノ機械や センサーの動作に変換します 自律的なマイクロ・ナノスケール・モーターの進歩により 新しい応用が可能になりました

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Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment
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Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment

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Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
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Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature

Published on: November 26, 2019

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関連する実験動画

Last Updated: Mar 2, 2026

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging
08:40

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Published on: March 13, 2019

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Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment
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Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
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Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature

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科学分野:

  • バイオミメティックな不均衡システム
  • 合成活性物質
  • ナノスケール科学と工学

背景:

  • 合成活性物質は化学エネルギーを 機械的運動に変換し バイオミテックな不均衡システムを作り出します
  • これらのシステムは,ナノ機械,ナノスケールアセンブリ,流動学,化学/生化学センサーにおける潜在的な応用により,大きな関心を持っています.
  • 最近の技術革新により 微小およびナノスケールの運動性を生み出し 自律的なモーターとポンプが生まれました

研究 の 目的:

  • この展望は,触媒で動くシステムの進歩をレビューします.
  • モーター/ポンプの設計,推進機構,方向制御,集団行動のためのモーター間通信の進歩を概説しています.
  • このレビューでは,将来の研究方向と,実用的な応用のための設計原則について論じています.

主な方法:

  • 触媒で動かす合成活性物質に重点を置く
  • モーター/ポンプ設計と推進機構に関する既存の文献をレビューする.
  • インターモーター通信による方向制御と集団行動に関する研究を考察する.

主要な成果:

  • 自律的なマイクロ・ナノスケール・モーターとポンプの設計には大きな進展がみられた.
  • 方向制御のための様々な推進機構と戦略が開発されています.
  • 新興の研究では 運動間のコミュニケーションが 集団行動に繋がっていることが示されています

結論:

  • 触媒的な活性物質は,マイクロおよびナノスケールの運動性を実証した急速に進歩する分野を表しています.
  • 将来の方向性は,基本的な問題に対処し,実用的なアプリケーションのための設計原則を確立することです.
  • これらのシステムの開発は,様々な技術的な応用に期待されています.