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Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1
Published on: July 11, 2017
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機械的に活性化するゲルの可逆的な筋肉のようなアクチュエータとしてのビスタブル [c2] デイジーチェーンロタキサン
Antoine Goujon1, Thomas Lang1, Giacomo Mariani2
1SAMS Research Group, Institut Charles Sadron, University of Strasbourg, CNRS , 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France.
Journal of the American Chemical Society
|October 13, 2017
まとめ
研究者はポリマー科学で pH 感受性分子マシンを開発しました これらのポリマーゲルは,活性物質の同期分子アクチュエーションを示し,著しく収縮し,膨張します.
科学分野:
- ポリマー科学
- 材料科学
- ナノテクノロジー
背景:
- 分子機械はナノスケールからマクロスケールへの運動移転の可能性を活性化します
- 効率的なシステムは,有用な作業の生産のための熱力学とトポロジカルな側面の探索を必要とします.
研究 の 目的:
- pH 感受性ビスタブル [c2] マージーチェーンロタキサンの分岐型ポリメリゼーションを記述する.
- 機械的結合の行動に基づいた結果のポリマーゲルのマクロスコーピックアクチュエーションを調査する.
主な方法:
- ポリメリゼーションのために使用された銅 (I) 触媒化Huisgen 1,3-二極サイクロアディション (クリック化学).
- 高解像度マジック・アングル・スピニング・プロトン核磁気共振 (HR-MAS 1H NMR) と中性子散乱実験を用いて化学ゲルの特徴を明らかにした.
主要な成果:
- pH感受性ビスタブル [c2] デイジーチェーンのロタキサンから交互結合ポリマーゲルを成功して合成した.
- pHの変動 (プロトネーション状態) に応じて化学ゲルの体積の変化が顕著である (約50%).
結論:
- ゲルのマクロスケールのボリュームの変化は,分子レベルでメカニカル結合の同期的な作用によって引き起こされます.
- この研究は,分子機械の制御された動きを通じて,活性材料や装置の開発に寄与しています.
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