マルチ反応性表面活性物質で駆動される機械化および反応性滴のシステム

Zhijie Yang¹, Jingjing Wei¹, Yaroslav I Sobolev¹

¹Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan 44919, South Korea.

Nature

|January 11, 2018

まとめ

研究者はナノ粒子ダイマーを用いた多反応性表面活性物質を開発した. これらの新しい表面活性物質は,液体の滴を同時に磁気,光学,電気的に制御し,複雑な組み立てと反応配列を可能にします.

科学分野:

材料科学
コロイドと表面化学
ナノテクノロジー

背景:

表面活性物質は単一の刺激 (例えば,温度,光,フィールド) に反応する.
複数の刺激反応を"つの表面活性物質で組み合わせることは困難ですが高度な制御が可能になります
既存の方法は複雑なドロップレット操作とダイナミックアセンブリのための柔軟性がない.

研究の目的:

新しい多反応性表面活性物質の設計と特徴付け
磁気,光学,電気フィールドを使用して液体滴を同時に制御することを実証します.
ダイナミックな構造に滴を組み立て,化学反応を制御する.

主な方法:

表面活性成分としての機能化されたナノ粒子ダイマーの合成.
磁気,光学,電気の場を使ってドロップレットを操作する
ドロップレットアセンブリ,回転,融合,インターフェイスジャム現象を観察する.

主要な成果:

磁気,光学,電気フィールドによってドロップルの同時宛先が示された.
表面活性剤で覆われたドロップルの階層的かつダイナミックな組み立てを達成した.
ドロップレット回転,トルク移転,フィールド誘発融合,複雑な"パッチ"構造の形成を展示しました.
組み合わせた刺激を用いたドロップレット指向,輸送,混合,反応のシーケンスを制御する.

結論:

ナノ粒子ダイマーに基づく多反応性表面活性剤は液体滴に対する前例のない制御を提供します
これらの表面活性物質はダイナミックな組み立て,複雑な構造の形成,制御された化学反応を可能にします
開発されたシステムは,マイクロ流体アプリケーションとダイナミックな材料設計のための多用途のプラットフォームを提供します.

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