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Visualization of High Speed Liquid Jet Impaction on a Moving Surface
Published on: April 17, 2015
液体の光駆動運動は,光反応性表面上の液体によるものです
1Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
Science (New York, N.Y.)
|June 2, 2000
まとめ
研究者らは,表面上の光による液体の動きを実証した. 改造されたモノレイヤーの非対称な光照射により,表面の自由エネルギーグラデーションが生み出され,滴の動きを制御し,マイクロスケールシステムへの可能性が生まれる.
科学分野:
- 表面科学とは,地表科学である.
- 材料化学 材料化学について
- 流体力学 流体力学とは
背景:
- 表面上の微細な液体の動きを制御することは,様々な用途において極めて重要です.
- フォトアイソメリゼーション可能なモノレイヤーは,光にさらされると,調整可能な表面特性を提供します.
研究 の 目的:
- 光照射を用いた固体表面上のマクロスコピック液体の動きの操作を調査する.
- 流体ダイナミクスを制御するための光異性化モノレイヤの潜在能力を探求する.
主な方法:
- 液滴は,アゾベンゼン単位を含むカリックス[4]リゾルシナレン誘導体でコーティングされた基板の上に置かれました.
- フォトイソメリゼーションを誘発し,表面の自由エネルギーグラデントを作成するために,非対称な光照射が適用されました.
- ドロップレット運動の方向と速度は,異なる光の強度グラデーションの下で分析されました.
主要な成果:
- 非対称な光照射は,表面の自由エネルギーのグラデーションを誘導し,液滴の方向運動を引き起こしました.
- ドロップレットの動きの方向と速度は,光の強度のグラデーションを調整することによってうまく調整されました.
- 表面を改変したガラスのチューブで,光による流体運動が観察され,これはマイクロスケールの応用の可能性を示しています.
結論:
- フォトアイソメリゼーション可能なモノレイヤーは,表面上のマクロスコプ的液体の動きを可逆的に制御することができます.
- 開発された方法は,光を使用して,流体の方向と速度を調節可能な制御を提供します.
- この技術は,マイクロスケール化学プロセスのシステムでのアプリケーションの有望さを示しています.
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