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

Freezing Point Depression and Boiling Point Elevation03:12

Freezing Point Depression and Boiling Point Elevation

41.3K
Boiling Point Elevation
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
41.3K
Phase Transitions: Melting and Freezing02:39

Phase Transitions: Melting and Freezing

15.3K
Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...
15.3K
Electric Field of a Non Uniformly Charged Sphere01:22

Electric Field of a Non Uniformly Charged Sphere

2.3K
Gauss's law states that the electric flux through any closed surface equals the net charge enclosed within the surface. This law is beneficial for determining the expressions for the electric field for a particular charge distribution if the electric flux is known.
Consider a non-uniformly charged sphere, for which the density of charge depends only on the distance from a point in space and not on the direction. Such a sphere has a spherically symmetrical charge distribution. Here, the electric...
2.3K
Molecular Models02:00

Molecular Models

43.9K
Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
43.9K
Structural Isomerism02:34

Structural Isomerism

21.8K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.8K
Solvents01:12

Solvents

71.4K
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
71.4K

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

Cooperativity, entropy, and effective concentration in DNA origami self-replication.

Science advances·2026
Same author

Diffusion in nonequilibrium two-dimensional crystals.

Physical review. E·2026
Same author

A tunable autonomous RNA-fueled micro-engine.

Nature communications·2026
Same author

Human mitotic spindles as active liquid crystals: From collective behaviors to discrete filaments.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Simultaneous Holographic Molecular Binding Assays with Internal Calibration Standards.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Dynamic Control of DNA Origami Self-Assembly by Transcriptional Modules.

Journal of the American Chemical Society·2026
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: Feb 14, 2026

Bacterial Cellulose Spheres that Encapsulate Solid Materials
04:42

Bacterial Cellulose Spheres that Encapsulate Solid Materials

Published on: February 26, 2021

5.0K

球の上で凍結する

Rodrigo E Guerra1, Colm P Kelleher1, Andrew D Hollingsworth1

  • 1Center for Soft Matter Research New York University, New York, New York 10003, USA.

Nature
|February 16, 2018
PubMed
まとめ
この要約は機械生成です。

12つの欠陥海に欠陥を集約し,一つの結晶大陸を形成します. これは長距離の秩序を明らかにし, 秩序付けられたナノ構造の設計とウイルスカプシドの理解に意味があります.

さらに関連する動画

Obtaining Cancer Stem Cell Spheres from Gynecological and Breast Cancer Tumors
07:01

Obtaining Cancer Stem Cell Spheres from Gynecological and Breast Cancer Tumors

Published on: March 1, 2020

10.8K
Fundamental Technical Elements of Freeze-fracture/Freeze-etch in Biological Electron Microscopy
11:17

Fundamental Technical Elements of Freeze-fracture/Freeze-etch in Biological Electron Microscopy

Published on: September 11, 2014

34.2K

関連する実験動画

Last Updated: Feb 14, 2026

Bacterial Cellulose Spheres that Encapsulate Solid Materials
04:42

Bacterial Cellulose Spheres that Encapsulate Solid Materials

Published on: February 26, 2021

5.0K
Obtaining Cancer Stem Cell Spheres from Gynecological and Breast Cancer Tumors
07:01

Obtaining Cancer Stem Cell Spheres from Gynecological and Breast Cancer Tumors

Published on: March 1, 2020

10.8K
Fundamental Technical Elements of Freeze-fracture/Freeze-etch in Biological Electron Microscopy
11:17

Fundamental Technical Elements of Freeze-fracture/Freeze-etch in Biological Electron Microscopy

Published on: September 11, 2014

34.2K

科学分野:

  • 物理学
  • 材料科学
  • クリスタルグラフィー

背景:

  • 2次元の凍結はよく理解されていますが,球のような曲面での結晶化は,欠陥を必要とするトポロジカルな制約のために困難です.
  • 閉じた表面の結晶には欠陥 (歪み) があり,曲線によって引き起こされるストレスを軽減するためにさらに発達することができます.
  • 欠陥を排除することが不可能である球体では,結晶化がどのように起こるかは不明です.

研究 の 目的:

  • 球形の表面での結晶形成のメカニズムを調査する.
  • トポロジカル・デフェクトが曲線幾何学上の結晶化にどのように影響するかを理解する.
  • 球形の結晶構造における指向的順序を記述するための新しい順序パラメータを開発する.

主な方法:

  • 球の凍結をシミュレートした.
  • 欠陥分布と対称性の分析
  • イコサヘドール対称性と欠陥配置に基づく新しい順序パラメータの開発.

主要な成果:

  • 球体上の結晶化により,単一の連続した結晶領域 ("大陸") が生まれます.
  • トポロジカルな制約により,欠陥は12の特定の場所 ("海") に集中し,icosahedral対称性を持つ.
  • 新しい順序パラメータは,欠陥の海線と平面展開を利用して,長距離の方向順序を明らかにします.

結論:

  • 球体の結晶化は,特定のパターンの欠陥を収納する統一された結晶構造を形成することによって進みます.
  • この発見は 曲った表面上の 秩序ある構造の自己組織化に関する 洞察を与えてくれます
  • この研究はナノ材料の設計や ウイルスのような天然のイコサヘドラル構造の理解に 潜在的応用がある.