局限された3次元活性流体における乱流から一貫性流への移行
Kun-Ta Wu1, Jean Bernard Hishamunda1, Daniel T N Chen1
1Department of Physics, Brandeis University, 415 South Street, Waltham, MA 02453, USA.
Science (New York, N.Y.)
|March 25, 2017
まとめ
微小管と分子モーターから成る活性液は 外部圧力なしに 長いチャネルを自律的に流れることができます 自律的なソフトマシンで 流体動力学を制御できます
科学分野:
- バイオ物理学
- 柔らかい物質の物理
- マイクロ流体
背景:
- 流体輸送はマクロスケールマシンとマイクロ流体装置の両方に不可欠です.
- 従来の流体では 流動に外部圧力が求められ 自律的なシステムを制限します
- 活性物質システムは 自己組織的な流体力学の新しい可能性を提供します
研究 の 目的:
- 活性物質を用いた長さ1メートルのチャネルでの自律的な流動性を実証する.
- 自己組織的な流れの大きさ,速度プロファイル,方向を制御する.
- 閉じ込められた活性流体における乱流からコヒーレント流への移行を調査する.
主な方法:
- マイクロチューブルと分子モーターからなる 活性同位体液を使用します
- 流体輸送のための3次元チャネルを設計する
- マイクロチューブル束の構造と相関する流れ特性
主要な成果:
- 流体の自律的な流れは,長さ1メートルのチャネルで達成されました.
- 流量量,速度プロファイル,方向に対する制御が確立された.
- スケール不変の基準は,チャネル幾何学とバンドルの順序に基づいて,乱流からコヒーレントの流れへの移行を規定します.
結論:
- アクティブな同位体流体は自律的に流れ,限られた幾何学の中で制御できます.
- この研究は,閉じ込められた活性流体における新しい非均衡の移行を明らかにしています.
- この研究は 自己組織的なソフトマシンを 開発する道を開きます
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