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関連する概念動画

Electro-mechanical Systems01:19

Electro-mechanical Systems

1.1K
Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
1.1K
Back EMF01:24

Back EMF

3.2K
Generators convert mechanical energy into electrical energy, whereas motors convert electrical energy into mechanical energy. A motor works by sending a current through a loop of wire located in a magnetic field. As a result, the magnetic field exerts a torque on the loop. This rotates a shaft, extracting mechanical work from the electrical current sent in initially. When the coil of a motor is turned, magnetic flux changes through the coil, and an emf (consistent with Faraday's law) is...
3.2K
Motional Emf01:22

Motional Emf

3.3K
Magnetic flux depends on three factors: the strength of the magnetic field, the area through which the field lines pass, and the field's orientation with respect to the surface area. If any of these quantities vary, a corresponding variation in magnetic flux occurs. If the area through which the magnetic field lines are passing changes, then the magnetic flux also changes. This change in the area can be of two types: the flux through the rectangular loop increases as it moves into the...
3.3K
Force On A Current Loop In A Magnetic Field01:17

Force On A Current Loop In A Magnetic Field

3.3K
Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical work. In motors, wire loops are enclosed in a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate. The direction of the current is reversed once the loop's surface area is lined up with the magnetic field, causing a constant torque on the loop. During the process,...
3.3K
Electromotive Force02:36

Electromotive Force

27.1K
Electricity is generated by either electrons or ions flowing through a solution or a conducting medium. This flow of electrons or specifically electrical charge is defined as an electric current. When electrons move through a wire, they generate an electric current. It can be recalled  that in a redox reaction, electrons are lost and gained. In the spontaneous redox reaction of zinc  with copper, when zinc is immersed in a copper ion solution, a transfer of electrons from one...
27.1K
Faraday Disk Dynamo01:23

Faraday Disk Dynamo

2.4K
A Faraday disk dynamo is a DC generator, producing an emf that is constant in time. It consists of a conducting disk that rotates with a constant angular velocity in the magnetic field, perpendicular to the disk's plane. The rotation of the disk causes a change in magnetic flux, which induces an emf, causing opposite charges to develop on the rim and in the center of the disk. The polarity of the induced emf can be determined by the direction of the magnetic field and the direction of the...
2.4K

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関連する実験動画

Updated: Aug 14, 2025

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

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Published on: March 13, 2019

11.5K

電気モーター

Long Zhang1, Yunyan Qiu2, Wei-Guang Liu3

  • 1Department of Chemistry, Northwestern University, Evanston, IL, USA. long.zhang@northwestern.edu.

Nature
|January 11, 2023
PubMed
まとめ

研究者は [3]カテナンの構造を用いた電気分子モーターを開発した. このモーターは 互いにつながった2つのリングで 電気で動くループを回転させることで 持続可能な分子機械への一歩を踏み出しました

さらに関連する動画

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation
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Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation

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Production of Dynein and Kinesin Motor Ensembles on DNA Origami Nanostructures for Single Molecule Observation
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Production of Dynein and Kinesin Motor Ensembles on DNA Origami Nanostructures for Single Molecule Observation

Published on: October 15, 2019

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関連する実験動画

Last Updated: Aug 14, 2025

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

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Published on: March 13, 2019

11.5K
Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation
08:27

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation

Published on: August 28, 2017

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Production of Dynein and Kinesin Motor Ensembles on DNA Origami Nanostructures for Single Molecule Observation
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Production of Dynein and Kinesin Motor Ensembles on DNA Origami Nanostructures for Single Molecule Observation

Published on: October 15, 2019

6.6K

科学分野:

  • 超分子化学
  • 分子機械
  • ナノテクノロジー

背景:

  • マクロスコープの電気モーターは不可欠で 電気で動く分子モーターの開発に 興味をそそっています
  • 既存の分子モーターは 効率的な一方的な動きが欠けていて 化学燃料に依存しています

研究 の 目的:

  • 電気駆動の分子モーターを設計し実証し,連続した,片方向の回転運動を可能にしました.
  • 制御された分子運動の達成における相互鎖の相互作用の役割を調査する.

主な方法:

  • 2つのサイクロビス (((パラクアット-p-フェニレン) (CBPQT4+) を含む3カテナンの分子構造の合成
  • 振動電圧または変調された還元電位を使用して,リングの片方向周回を動かす.
  • 動きを誘導する 閃光エネルギー・ラッチメカニズムを使用します

主要な成果:

  • 両方のCBPQT4+リングの85パーセントの単方向の動きをループで達成した.
  • FOF1ATP合成と類似した,環間相互作用から生じる二次元の潜在エネルギー表面を観測した.
  • [2]カテナンは単方向運動のための十分な運動非対称性を欠いていることを実証し, [3]カテナンの2番目のリングの重要性を強調した.

結論:

  • 廃棄物のない電動分子モーターを成功裏に実証した [3]catenane
  • 相互接続されたリングシステムは 単方向の動きに不可欠な対称性破壊を提供します.
  • この研究は,表面に固定された電気分子モーターの開発に向けた重要な進歩です.