超分子ポリマーは,液体-液体相分離によってタクトイドを形成する.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
PubMedで要約を見る
まとめ
この要約は機械生成です。合成の超分子ポリマーは,液体液相分離 (LLPS) を経て,オーダーされたタクトイドを形成することができる. この発見は 構造的な軟質物質を作り 生物学的凝縮物を理解するための 新たな道を開きます
科学分野
- ポリマー化学
- 柔らかい物質の物理
- バイオ物理学
背景
- バイオポリマーの液体液相分離 (LLPS) は,膜のない臓器形成に不可欠です.
- 生物学的マクロ分子に類似する合成上分子ポリマーは,LLPSを受けることが報告されていません.
研究 の 目的
- 合成の超分子ポリマーが LLPS を受けられるかどうかを調査する.
- 合成システムにおけるLLPSに影響を与える要因を探求し,発生する形態論を制御する.
主な方法
- 連続的に成長する繊維を形成するための合成成分の超分子ポリメリゼーション.
- 混雑した環境 (デクストラン濃度) とインターフェースの制御された操作
- 段階分離運動,タクトイド形態,内部秩序,流動性,および機械的性質の特徴.
主要な成果
- 連続的に成長する超分子ポリマー繊維は,エントロピー駆動の相分離をアニゾトロプ的液滴 (タクトイド) に導きます.
- 混雑した環境とインターフェースは,LLPSの運動と結果のタクトイドの特性に大きな影響を与えます.
- 表面に縛られたタクトイド配列を含む多様な3次元秩序化された構造が生成されました.
結論
- 合成超分子ポリメリゼーションはLLPSを誘導し制御し,安定した液体相を形成します.
- この研究は,制御された相分離による構造的な軟質物質の創造のための新しいパラダイムを確立しています.
- この発見は合成化学と生体物理学を繋ぎ 生物学的組織に関する新しい素材と洞察を 提供しています
関連する概念動画
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the...
Thin-layer chromatography (TLC) is a chromatography technique that separates compounds based on their polarity. TLC typically uses polar silica gel, a form of silicon dioxide, as the stationary phase. The silica gel contains hydroxyl (OH) groups on its surface, which form hydrogen bonds with polar compounds, influencing their adhesion to the stationary phase.
To begin the analysis, a mixture of compounds is spotted on the starting line on the TLC plate using a thin capillary. The bottom of the...