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関連する概念動画

Chirality02:25

Chirality

30.0K
Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
30.0K
Chirality in Nature02:30

Chirality in Nature

17.3K
Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid.
17.3K
Molecules with Multiple Chiral Centers02:25

Molecules with Multiple Chiral Centers

15.3K
Molecules that possess multiple chiral centers can afford a large number of stereoisomers. For instance, while some molecules like 2-butanol have one chiral center, defined as a tetrahedral carbon atom with four different substituents attached, several molecules like butane-2,3-diol have multiple chiral centers. A simple formula to predict the number of stereoisomers possible for a molecule with n chiral centers is 2n. However, there can be a lower number where some of the stereoisomers are...
15.3K
Prochirality02:05

Prochirality

5.1K
The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
5.1K
Fischer Projections02:18

Fischer Projections

16.8K
Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines. While...
16.8K

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Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
16:24

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Published on: August 2, 2012

19.3K

自己組み立ての3次元キラル・コロイド構造

Matan Yah Ben Zion1, Xiaojin He2, Corinna C Maass2,3

  • 1Department of Physics, New York University, New York, NY 10003, USA. matanbz@nyu.edu chaikin@nyu.edu.

Science (New York, N.Y.)
|November 4, 2017
PubMed
まとめ
この要約は機械生成です。

研究者はマイクロンサイズのコロイドクラスターをナノスケール構造情報で 自己組み立てするようにプログラムしました この突破はDNAナノテクノロジーと コロイド科学を組み合わせて マイクロコンストラクションの幾何学とキラリティの 精密な制御を可能にします

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

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Synthesis and Characterization of Supramolecular Colloids
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Synthesis and Characterization of Supramolecular Colloids

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関連する実験動画

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Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
16:24

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Published on: August 2, 2012

19.3K
Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

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Synthesis and Characterization of Supramolecular Colloids
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Synthesis and Characterization of Supramolecular Colloids

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科学分野:

  • * ナノテクノロジー,材料科学,化学を繋ぐ学際的な研究
  • * ステレオ化学とマイクロスケールでの自己組み立てに焦点を当てます.

背景:

  • * 立体化学は3D分子配列の研究であり,伝統的にナノスケールに限定されています.
  • * ステレオ化学的制御をミクロンサイズの大きな構造に拡張する必要性があります.

研究 の 目的:

  • * ナノスケールの構造情報を用いてミクロンサイズのコロイドクラスターの自己組み立てをプログラムする.
  • * 三次元マイクロコンストラクションの幾何学とキラリティの精密な制御を証明する.

主な方法:

  • DNAナノテクノロジーの統合,特にDNAオリガミ,コロイド科学.
  • * プログラムされた自己組み立てのために,DNA オリガミの機能的な柔軟性と,コロイド粒子の硬さを利用する.

主要な成果:

  • * 三次元マイクロコンストラクションの平行自己組み立てが成功しました.
  • 位置と二面角の制御を含む高度に特定の幾何学を達成しました.
  • * 生成したマイクロクラスターのキラリティの制御が実証された.

結論:

  • * この研究は,ナノスケールからマイクロスケールまでステレオ化学制御を成功裏に拡張しています.
  • * この新しいアプローチは,複雑な幾何学的に定義された微細構造の作成を可能にします.
  • * マイクロンレベルでの特定のキラル特性を持つ材料の設計と製造のための新しい可能性を提供します.