Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Colloids03:22

Colloids

21.3K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
21.3K
Torque01:10

Torque

22.7K
Torque is an important quantity for describing the dynamics of a rotating rigid body. We see the application of torque in many ways in the world, such as when pressing the accelerator in a car, which causes the engine to apply additional torque on the drivetrain. Here, we define torque and provide a framework to create an equation to calculate torque for a rigid body with fixed-axis rotation.
Torque can be considered as the rotational counterpart to force. Since forces change the translational...
22.7K
Torque Free Motion01:15

Torque Free Motion

849
The torque-free motion refers to the movement of a rigid body in space when no external torques are acting upon it. This type of motion can be observed in environments where there are no external forces or frictions, like in outer space. For example, a rotation of Mars in space is a torque-free motion. Mars is an axisymmetric object, meaning it has an axis of symmetry along which it rotates, designated as the z-axis. The rotating frame of reference is defined such that the center of mass of...
849
Net Torque Calculations01:19

Net Torque Calculations

11.6K
When a mechanic tries to remove a hex nut with a wrench, it is easier if the force is applied at the farthest end of the wrench handle. The lever arm is the distance from the pivot point (the hex nut in this case) to the person’s hand. If this distance is large, the torque is higher. Only the component of the force perpendicular to the lever arm contributes to the torque. Therefore, pushing the wrench perpendicular to the lever arm is more advantageous. If multiple people apply force to...
11.6K
What is an Electrochemical Gradient?01:26

What is an Electrochemical Gradient?

128.5K
Adenosine triphosphate, or ATP, is considered the primary energy source in cells. However, energy can also be stored in the electrochemical gradient of an ion across the plasma membrane, which is determined by two factors: its chemical and electrical gradients.
The chemical gradient relies on differences in the abundance of a substance on the outside versus the inside of a cell and flows from areas of high to low ion concentration. In contrast, the electrical gradient revolves around an...
128.5K
Colloids and Suspensions01:17

Colloids and Suspensions

3.5K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
3.5K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Helical opto-thermoviscous flows drive out-of-plane rotation and particle spinning in a highly viscous micro-environment.

Light, science & applications·2026
Same author

Freeform optical flow based on meta-conveyors for compact, programmable in situ nanomanipulation.

Nature communications·2026
Same author

Nanodrone Driven by Symmetry-Selective Light Recoiling.

ACS nano·2025
Same author

Enhanced optical trapping by concentrated local fields in metallic semi-continuous films.

Discover nano·2025
Same author

Tunable photon-recoil forces and negative torque at flat-top beam edges.

Nature communications·2025
Same author

Optical Micromanipulations Based on Model Predictive Control of Thermoviscous Flows.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same journal

Spatiotemporal control of myoblast identity drives muscle diversity in the <i>Drosophila</i> leg.

Science advances·2026
Same journal

Stellar feedback drives the baryon deficiency in low-mass galaxies.

Science advances·2026
Same journal

Antiferroelectric thin films embedded with ferroelectric switching loop for giant negative electrocaloric effect.

Science advances·2026
Same journal

Tetraphosphorylated phthalocyanine-based self-assembled monolayer stabilizes perovskite photovoltaics.

Science advances·2026
Same journal

Dual-mode analysis of ischemic stroke based on urine SERS spectra and carotid B-ultrasound.

Science advances·2026
Same journal

Remote homology and functional genetics unmask deeply preserved Scm3/HJURP orthologs in metazoans.

Science advances·2026
関連記事をすべて見る

関連する実験動画

Updated: Feb 13, 2026

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles
11:13

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles

Published on: March 13, 2016

11.2K

光位相勾配駆動コロイド集合体からの調整可能な3D光流体力学的トルク

Xiao Li1, Chenchen Liu2, Zongpeng Huang2

  • 1Department of Physics and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.

Science advances
|February 11, 2026
PubMed
まとめ
この要約は機械生成です。

研究者らは、光を使用して3Dの微視的物体を精密に制御する新しい方法を開発した。この光流体力学技術は、生物物理学およびマイクロロボット工学の応用のため、調整可能なトルクを生成するためにナノ粒子集合体を操作する。

キーワード:
光流体力学トルク制御ナノ粒子集合体光ピンセットマイクロロボット工学生物物理学

さらに関連する動画

Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics
09:10

Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics

Published on: August 25, 2022

3.8K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K

関連する実験動画

Last Updated: Feb 13, 2026

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles
11:13

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles

Published on: March 13, 2016

11.2K
Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics
09:10

Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics

Published on: August 25, 2022

3.8K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K

科学分野:

  • 物理学;工学;生物物理学

背景:

  • 光流体力学的操作は、微小スケールの物体を非侵襲的に制御するための柔軟な方法を提供します。;既存の技術には、3次元での精密で再構成可能な制御を実現する上での限界があります。

研究 の 目的:

  • 調整可能な3次元光流体力学的トルクを生成するための新しい戦略を開発すること。;光駆動の粒子間相互作用を使用して微視的物体を精密に制御できるようにすること。

主な方法:

  • プログラム可能な光リング渦（ラグゲール・ガウシアンビーム）を使用してコロイドクラスターを組み立ておよび回転させました。;位相勾配駆動ナノ粒子集合体を利用して流体力学的流れを誘発しました。;円偏光のキラリティと光渦の変位によってトルク制御を実装しました。

主要な成果:

  • ターゲット粒子に対する平面内および平面外トルクの切り替えを実現しました。;任意の方向における堅牢で高解像度のトルク制御を実証しました。;概念実証として、単一細胞の完全な3次元配向制御を成功裏に実行しました。

結論:

  • 開発されたフレームワークは、光駆動の粒子間力を統合することによって光流体力学の能力を拡張します。;生物物理学、マイクロロボット工学、および生物医学工学における高度な応用のための基盤を確立します。;精密なマイクロオブジェクト操作のための用途が広く再構成可能なアプローチを提供します。