セルフ・アセンブリド・ジェミニ・サーファクタントのジロイド・フェーズにおける水力学
Santanu Roy1, David Skoff1, Dominic V Perroni1
1Department of Chemistry, University of Wisconsin , 1101 University Avenue, Madison, Wisconsin 53706, United States.
Journal of the American Chemical Society
|February 16, 2016
まとめ
表面活性物質の相互作用により,ナノ孔質のジロイドフェーズにおける水の動態は,大量水よりも遅い. しかし,逆ミセルよりも速く,効率的なイオン輸送膜を設計するための洞察を提供します.
科学分野:
- 材料科学
- 物理化学
- 超分子化学
背景:
- ナノ孔質の材料内の水のダイナミクスはイオン輸送に不可欠です
- リオトロピク・ジロイド・フェーズは,機能的な応用の可能性のある自己組み立てナノ構造物です.
研究 の 目的:
- 正常 (タイプI) のリオトロピック・ジロイド相におけるインターフェイス水の水素結合ダイナミクスを調査する.
- 逆ミセルの水と大量水との水の動態を比較する.
主な方法:
- 二次元赤外線 (2DIR) スペクトロスコーピー
- 分子ダイナミクス (MD) シミュレーション
- 水界ダイナミクスと水素結合相互作用の分析
主要な成果:
- 通常のジロイドの水動力は 大量の水よりも10倍遅い.
- ジロイドフェーズにおける水の動態は,類似の毛穴の大きさの逆ミセルよりも速い.
- 逆ミセルと比較して,ガイロイド相でのインターフェースの曲率の減少は,より速い水動力学に貢献します.
結論:
- 閉じ込められた水のダイナミクスは,ナノ構造の形態学と表面活性物質の相互作用によって大きく影響されます.
- 制御されたイオン輸送のための有望なプラットフォームを提供します.
- 得られた洞察は,イオンと陽子の輸送のための高度な人工膜の設計を導くことができます.
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