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

21.2K
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...
21.2K
¹³C NMR: ¹H–¹³C Decoupling01:04

¹³C NMR: ¹H–¹³C Decoupling

1.8K
The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
1.8K
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
Colloidal precipitates01:09

Colloidal precipitates

6.5K
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
6.5K
Fast Decoupled and DC Powerflow01:24

Fast Decoupled and DC Powerflow

760
The fast decoupled power flow method addresses contingencies in power system operations, such as generator outages or transmission line failures. This method provides quick power flow solutions, essential for real-time system adjustments. Fast decoupled power flow algorithms simplify the Jacobian matrix by neglecting certain elements, leading to two sets of decoupled equations:
760
Elasticity01:12

Elasticity

5.0K
Elasticity is the ability of an object to withstand the effects of distortion and to return to its original size and shape once the forces causing deformation are removed. When an elastic material deforms under the action of an external force, it experiences internal resistance to the deformation. However, if no external force is applied, it returns to its original state.
The elasticity of an object can be described by a stress-strain curve, which represents the relationship between stress...
5.0K

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

Real-World Effectiveness and Safety of Upadacitinib in Crohn's Disease: Insights From the Eneida Registry.

United European gastroenterology journal·2026
Same author

Hierarchical dynamics and time-length scale superposition in glassy suspensions of ultra-low crosslinked microgels.

The Journal of chemical physics·2026
Same author

A clinical protocol for the detection of comorbidities associated with monogenic causes of male infertility.

Human reproduction (Oxford, England)·2026
Same author

Obstetric and perinatal outcomes from the follow-up of a multicentre randomized controlled trial investigating time-lapse embryo monitoring.

Human reproduction (Oxford, England)·2025
Same author

Probing microscopic dynamics in a uni-axially strained polymer network with light scattering.

Soft matter·2025
Same author

JustRAIGS: Justified Referral in AI Glaucoma Screening Challenge.

IEEE transactions on medical imaging·2025

関連する実験動画

Updated: Feb 8, 2026

Fast and Sensitive Colloidal Coomassie G-250 Staining for Proteins in Polyacrylamide Gels
10:57

Fast and Sensitive Colloidal Coomassie G-250 Staining for Proteins in Polyacrylamide Gels

Published on: August 3, 2009

41.9K

コロイドゲルの構造と弾性を等方性圧縮下で分離する

M Milani1, E Cavalletti1, V Ruzzi1

  • 1Laboratoire Charles Coulomb (L2C), Université Montpellier, CNRS, Montpellier, France.

Physical review letters
|February 6, 2026
PubMed
まとめ

コロイドフラクタルゲルの制御乾燥により、機械的特性は乾燥履歴ではなくコロイド体積分率のみに依存することが明らかになった。しかし、微細構造は圧縮の記憶を保持しており、既存の材料科学のパラダイムに挑戦している。

キーワード:
コロイドゲルフラクタルゲル機械的特性体積分率乾燥履歴微細構造圧縮塑性変形ヤング率降伏応力構造記憶ソフトマター物理学材料科学コロイド科学

さらに関連する動画

A Microfluidic Platform for Stimulating Chondrocytes with Dynamic Compression
07:23

A Microfluidic Platform for Stimulating Chondrocytes with Dynamic Compression

Published on: September 13, 2019

7.1K
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 8, 2026

Fast and Sensitive Colloidal Coomassie G-250 Staining for Proteins in Polyacrylamide Gels
10:57

Fast and Sensitive Colloidal Coomassie G-250 Staining for Proteins in Polyacrylamide Gels

Published on: August 3, 2009

41.9K
A Microfluidic Platform for Stimulating Chondrocytes with Dynamic Compression
07:23

A Microfluidic Platform for Stimulating Chondrocytes with Dynamic Compression

Published on: September 13, 2019

7.1K
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:

  • ソフトマター物理学
  • 材料科学
  • コロイド科学

背景:

  • コロイドフラクタルゲルは複雑な機械的挙動を示す。
  • 微細構造と機械的特性の関係を理解することは、ソフトマターにとって重要である。
  • 乾燥誘起圧縮は、これらのゲルを形成するための一般的な方法である。

研究 の 目的:

  • 制御乾燥を用いたコロイドフラクタルゲルの等方性圧縮を調査する。
  • 乾燥誘起応力がゲル力学と微細構造にどのように影響するかを決定する。
  • 機械的応答と構造記憶の関係を探る。

主な方法:

  • ミリメートルサイズのゲルビーズの制御乾燥。
  • 機械的特性を測定するための動的光散乱（DLS）。
  • 微細構造を調査するための小角X線散乱（SAXS）。

主要な成果:

  • 乾燥誘起応力は均一に伝播し、塑性再配列を引き起こす。
  • ヤング率と降伏応力は、乾燥履歴に依存せず、コロイド体積分率（φ）のみに依存する。
  • ゲル微細構造は、機械的特性とは異なり、初期状態と圧縮経路の記憶を保持する。

結論:

  • コロイドフラクタルゲルの機械的特性と微細構造は分離されている。
  • この発見は、これらの材料における構造と弾性の直接的な関連性に疑問を投げかける。
  • ソフトマターにおける構造特性と機械的特性の独立した制御の可能性を開く。