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関連する概念動画

Ionic Crystal Structures02:42

Ionic Crystal Structures

17.5K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
17.5K
Crystal Growth: Principles of Crystallization01:25

Crystal Growth: Principles of Crystallization

5.1K
Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...
5.1K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

31.0K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
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Data Reporting and Recording01:24

Data Reporting and Recording

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Reporting and recording are crucial in data documentation. The timely, thorough, and accurate documentation of facts is essential when recording patient data. Failure to record findings during an assessment or interpretation of a problem will result in loss of information and make the patient document unreliable. The reader is left with general impressions if the information is not specific. A recording is documenting data of the individual's health information in a traceable, secure, and...
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Epigenetic Regulation01:46

Epigenetic Regulation

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Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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GTPases and their Regulation02:14

GTPases and their Regulation

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Guanine nucleotide-binding proteins (G-proteins), also known as GTPases, are a superfamily of proteins that regulate many cellular processes, such as cell signaling, vesicular transport, and the regulation of cell shape and motility. Mutation or dysfunction of these proteins can lead to disease. There are around 40,000 known G-proteins that can broadly be classified into two groups ‒  small G-proteins consisting of a single domain and large multi-domain G-proteins.
Large G-proteins,...
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Synthesis of Biocompatible Liquid Crystal Elastomer Foams as Cell Scaffolds for 3D Spatial Cell Cultures
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自己報告し,自己調節する液晶

Young-Ki Kim1, Xiaoguang Wang1,2, Pranati Mondkar1

  • 1Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI, USA.

Nature
|May 11, 2018
PubMed
まとめ
この要約は機械生成です。

新しい液晶材料は 微積分を放出することで 周りの環境を感知し 反応します これらの自己調節材料は,刺激に反応するアプリケーションに高度な機能を備えています.

さらに関連する動画

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

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関連する実験動画

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Synthesis of Biocompatible Liquid Crystal Elastomer Foams as Cell Scaffolds for 3D Spatial Cell Cultures
13:38

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Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
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科学分野:

  • 材料科学
  • 柔らかい物質の物理
  • 化学工学

背景:

  • 液体結晶 (LC) は,結晶と液体の両方の性質を持つアニゾトロプ的液体である.
  • LCは,電気場,温度,化学的刺激を感知するために再構成可能な材料で使用されます.
  • 自律的な化学相互作用によって 周りの環境を感知するだけでなく 積極的に変化させる材料が必要です

研究 の 目的:

  • 刺激時に微量物質を放出する 反応性のある材料を開発する
  • 化学反応の自己報告と自己調節が 様々な刺激によって引き起こされる
  • 弾性,電気,浮力,切断力を制御することによって,事前プログラム可能な機能を探索する.

主な方法:

  • 液体結晶 (LC) を使用して,マイクロカーゴ (水分または固体) を捕まえて放出します.
  • 物理的,化学的,または生物学的刺激を用いて微積分の放出を誘発する.
  • LC材料の幾何学 (井戸,フィルム,乳液滴) を設計して,放出ダイナミクスを制御する.
  • 弾性,電気的二重層,浮力,切断力の相互作用を調査しています.

主要な成果:

  • 様々な刺激に反応して,LCからパルサティルまたは継続的なマイクロカーゴの放出が示されています.
  • LC材料は化学反応の自己報告と自己調節を示した.
  • 刺激報告とフィードバック制御された貨物放出を含む複雑な機能が達成されました.
  • 予めプログラムされた反応は 力の操作と幾何学によって達成されました

結論:

  • マイクロカルゴを制御して放出できる 新しい液晶材料を開発しました
  • これらの材料は,高度な自己報告と自己調節機能を備えています.
  • この発見により,刺激反応システムと制御された放出アプリケーションの新たな可能性が生まれます.