関連する実験動画
Updated: Jun 10, 2026

06:01
Modulating Shape of Polyester Based Polymersomes using Osmotic Pressure
Published on: April 21, 2021
ポリマーソームストマトサイト:ポリマーベシクルにおける制御された形状変容.
Kyoung Taek Kim1, Jiahua Zhu, Silvie A Meeuwissen
1School of Nano-Biotechnology and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 689-798, Korea.
Journal of the American Chemical Society
|August 20, 2010
まとめ
研究者らは,ポリマーソーム (ポリマーベジクル) のガラスの水害性セグメントの相行動を運動的に操作することによって,制御可能な形状変換を達成しました. この方法は,予測可能な形状の頑丈で珍しいナノ構造を作成します.
科学分野:
- ポリマーサイエンスの科学
- マテリアルサイエンス 材料科学
- ナノテクノロジー ナノテクノロジー
背景:
- ポリマーソームは多用途のナノ構造体であり,薬物投与や材料科学で潜在的応用がある.
- ポリマーソームの形状を制御することは困難であり,構造的多様性と強さを制限します.
- 既存の方法では,形状の変形と長期的な構造的整合性に対する正確な制御が欠けていることが多い.
研究 の 目的:
- ポリマーソームの形状変換のための制御可能な方法を開発する.
- 物理的に堅固なナノ構造を作り,多様で珍しい形状を作り出す.
- 巨大リポソームの形状の変動性とポリマーソームの安定性を組み合わせる.
主な方法:
- ブロックコポリマーから高分子量ガラスの水嫌性セグメントを持つポリマーソームを構成する.
- ガラスの水害性セグメントの相行動の運動操作を用いて.
- 特定のポリマーソームの形状を,運動過程中の定義された時間点で捕捉する.
主要な成果:
- ポリマーソームで制御可能な形状変換を達成した.
- 形状決定のための相行動を運動的に制御する能力を実証した.
- 物理的に堅固なナノ構造を生産し,ユニークで以前は達成できなかった形状を呈した.
- 形態学的多様性と構造的整合性を成功裏に組み合わせた.
結論:
- ガラスのようなポリマー膜の運動操作は,異常なナノ構造への一般的で予測可能な経路を提供します.
- このアプローチは,形状を合わせた高度なポリマーソームを設計し,安定性を高めるための強力なツールを提供します.
- この発見は,精密な構造制御を持つ新しいナノ材料の作成のための新しい道を開く.
関連する概念動画
Step-Growth Polymerization: Overview
Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
Many natural and synthetic polymers are produced by...
Many natural and synthetic polymers are produced by...
Polymer Classification: Stereospecificity
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
Polymers
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 properties that they exhibit. Additionally,...
Polymers
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 properties that they exhibit. Additionally,...
Polymers
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 properties that they exhibit. Additionally,...
Mechanism of Lamellipodia Formation
Cells migrating in response to external stimuli form lamellipodia, which are thin membrane protrusions supported by a mesh of linked, branched, or unbranched actin filaments. These actin filaments interact with myosin motor proteins, creating the dynamic actomyosin complex within the cytoskeleton. Contractility, or the ability to generate contractile stress, is inherent to the actomyosin complex. It helps cells detect the stiffness of the surrounding ECM and exert contractile force for...

