非共振マクロサイクルからのパルスするチューブル
Zhegang Huang1, Seong-Kyun Kang, Motonori Banno
1Department of Chemistry, Seoul National University, Seoul 151-747, Korea.
Science (New York, N.Y.)
|September 22, 2012
まとめ
研究者らは,螺旋状のキラリティを変えて,収縮し,膨張するダイナミックな超分子ナノチューブルを開発しました. これらの自己組み立て構造は,炭素60 (C60) のような水害性ゲストをカプセル化し,外部のトリガーに反応することができます.
科学分野:
- 超分子化学とは
- マテリアルサイエンス 材料科学
- ナノテクノロジー ナノテクノロジー
背景:
- 合成ナノメートルスケールの管状アセンブリでダイナミックな応答を達成することは困難です.
- 既存のナノチューブルの構造は,しばしば外部刺激に対する反応性が欠けている.
研究 の 目的:
- ダイナミックで反転可能な運動を持つ超分子ナノチューブルの設計と合成.
- 収縮-膨張とキラル逆転のメカニズムを調査する.
- これらのダイナミックなチューブルの中で,水害性のゲストの封じ込みを探求するために.
主な方法:
- 水溶液中の曲った形状の芳香アンフィフィルの自己組み立て.
- ヘクサメリックマクロサイクルの形成と,その後の1次元の積み重ねをキラルチューブルにします.
- 外部トリガーを利用して,アロマティックセグメントの可逆的な滑り方を誘導します.
- 水嫌のゲスト,特に炭素-60 (C60) の封装.
主要な成果:
- リバーシブルな収縮-膨張運動を示す超分子ナノチューブルが成功裏に合成されました.
- ダイナミックな動きは,螺旋的なヒラリティの逆転的な逆転に伴いました.
- ナノチューブルは,C60のような水害性ゲストを,その芳香的な内部に封じ込める能力を示しました.
- 熱トリガーは,ナノチューブルパルスによるゲスト-ゲストの相互作用を調節するために使用されました.
結論:
- 曲った形状の芳香性アンフィフィルは,反応性を持つダイナミックなキラルナノチューブルに自己組み立てることができます.
- 観測された脈動運動とキラル逆転は,ナノスケール構造のダイナミックな構造のための新しいメカニズムを提供します.
- これらの機能的なナノチューブルは,水害性分子の制御された封じ込めと相互作用の調節の可能性を示しています.
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