頑丈なエネルギー景観を通じたポリサッカリドのpH反応性自己組み立て
Brian H Morrow1, Gregory F Payne2, Jana Shen1
1Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland , Baltimore, Maryland 21201, United States.
Journal of the American Chemical Society
|September 19, 2015
まとめ
チトソーンの凝固を制御するには 理解力が必要です 分子ダイナミクスのシミュレーションでは,pHと塩分が多糖質の自己組み立てに影響を与え,バイオエレクトロニクスと再生医療のアプリケーションのための柔らかい物質の特性に影響を与えます.
科学分野:
- バイオマテリアル科学
- ポリマー化学
- コンピュータバイオ物理学
背景:
- 自己組織化ポリサッカライドは 調整可能な性質を持つ複雑なネットワークを形成します
- 先進的な柔らかい物質の設計には 刺激による自己組み立てを制御することが重要です
- ポリサッカライドの組成における力のバランスを理解することは,材料設計において極めて重要です.
研究 の 目的:
- 分子ダイナミクスを用いてキトーサンのpH反応の凝縮機構を調査する.
- 塩分濃度やpHなどの環境要因がキトーサンの自己組織化に及ぼす影響を明らかにする.
- 初期のポリサッカリドの自己組織化について 原子的に詳細な洞察を提供するためです
主な方法:
- 全原子分子ダイナミクスシミュレーション (約. 100 センチメートル).
- pHに依存する移行 (溶解状態へのゲル) の分析.
- 形状動態に対する塩の影響の調査.
主要な成果:
- 低pHはタンパク質の折りたたみのような 凝固から溶解可能なキトーサンへの急激な移行を誘発します
- ニュートラルと高いpHは,RNAの折りたたみのような自己組織化のための荒いエネルギー環境を示します.
- 塩は潤滑剤として作用し,安定した形状状態の探求を容易にする.
結論:
- 原子的に詳細なシミュレーションの洞察は,キトーサン自己組成の実験的観測と一致しています.
- 環境条件は,自己組み立てポリサッカリドの構造と機械的性質を大きく変化させる.
- 制御された自己組み立ては バイオエレクトロニクスと再生医療のための新しい柔らかい物質の開発の経路を提供します
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