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

Coagulation01:06

Coagulation

1.1K
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
1.1K
Colloidal precipitates01:09

Colloidal precipitates

4.5K
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...
4.5K
Colloids and Suspensions01:17

Colloids and Suspensions

2.9K
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...
2.9K
Colloids03:22

Colloids

20.4K
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...
20.4K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

19.7K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
19.7K
Qualitative Analysis03:46

Qualitative Analysis

23.5K
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
23.5K

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

The hydrodynamic torque dipole from rotary bacterial flagella powers symmetric discs.

Nature physics·2026
Same author

Force-modulated structural landscape of the catch bonding F-actin crosslinker α-actinin-4.

bioRxiv : the preprint server for biology·2026
Same author

Looking back and to the future after four-plus years of language in chemistry.

Digital discovery·2026
Same author

Large-scale multi-omic biosequence transformers for modeling protein-nucleic acid interactions.

PloS one·2026
Same author

Tutorial on quantifying and sampling biomolecular ensembles with ShapeGMM.

The Journal of chemical physics·2025
Same author

Tutorial on quantifying and sampling biomolecular ensembles with ShapeGMM.

bioRxiv : the preprint server for biology·2025
Same journal

Retraction Note: NSD2 targeting reverses plasticity and drug resistance in prostate cancer.

Nature·2026
Same journal

Enhanced B cell priming induces broadly neutralizing HIV-1 apex antibodies.

Nature·2026
Same journal

Vaccination elicits HIV broadly neutralizing antibodies in primates.

Nature·2026
Same journal

Child online safety needs more than social-media bans.

Nature·2026
Same journal

Ebola preparedness must start with ecosystems and before humans show symptoms.

Nature·2026
Same journal

AI tools can speed up thinking, but evidence still comes from the lab bench.

Nature·2026
関連記事をすべて見る

関連する実験動画

Updated: Dec 23, 2025

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.3K

普通のコロイドからのイオン固体

Theodore Hueckel1, Glen M Hocky1, Jeremie Palacci2

  • 1Department of Chemistry, New York University, New York, NY, USA.

Nature
|April 24, 2020
PubMed
まとめ
この要約は機械生成です。

研究者らは水中のイオンコロイド結晶を生成するために,ポリマーで減弱されたクーロンビックセルフアセンブリを開発しました. この方法は中性ポリマーを使用して粒子相互作用を制御し,単純なコロイドから複雑な構造の調整可能な結晶化を可能にします.

さらに関連する動画

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.5K
Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals
08:54

Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals

Published on: May 25, 2016

8.8K

関連する実験動画

Last Updated: Dec 23, 2025

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.3K
Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.5K
Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals
08:54

Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals

Published on: May 25, 2016

8.8K

科学分野:

  • コロイドと表面科学
  • 材料科学
  • クリスタルグラフィー

背景:

  • 複雑な構造は引き寄せの力によって形成されますが,水中のミクロン規模のコロイドはしばしばゲルのような非均衡構造を形成します.
  • バイナリー結晶の成長のための以前の方法は,水性条件でネイティブの表面電荷を使用しない,エンジニアリングされた粒子を必要としていました.

研究 の 目的:

  • 表面電荷を用いて水中のイオン型コロイド結晶を形成するための新しい方法を開発する.
  • 需要に応じてコロイド組成 (分散,結晶化,または固定) を制御する能力を実証する.

主な方法:

  • 中性ポリマーを使用して,粒子の間の距離を正確に制御するポリマー減弱型クーロンビック自己組み立てが導入されました.
  • ポリマーの濃度と塩分を調整することで,電気の二重層の魅力的な重なりを調整しました.
  • 単一結晶の核形成と成長を制御するためにデビエスクリーニングの長さを利用した.

主要な成果:

  • ポリマー減弱法で水中のイオン型コロイド結晶を成功させた.
  • 適切な粒子の大きさの比率を選択することによって,既知の無機化合物 (例えば,CsCl,NaCl,AlB2,K4C60) に同構造の結晶が得られる.
  • 塩を薄めることで結晶を固定し,さらに操作するためにそれらを抽出する能力を示しました.

結論:

  • ポリマーで減弱されたクーロンビック自己組み立ては,水溶液中の結晶型コロイド材料を作成するための多用途な方法を提供します.
  • このアプローチは,通常のコロイドを結晶化のためのモデルコロイドイオンとして使用し,材料の設計を簡素化します.
  • この方法は,溶液相構造を固体材料に変換することで,組み立てプロセスを正確に制御することができます.