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相关概念视频

Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
Modified-Release Drug Delivery Systems: Stimuli-Activated01:30

Modified-Release Drug Delivery Systems: Stimuli-Activated

Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also called...
Micelles01:30

Micelles

Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...

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相关实验视频

Updated: Jun 24, 2026

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions
10:53

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Published on: October 10, 2016

敏感于多种刺激的两类块共聚合物组件.

Akamol Klaikherd1, Chikkannagari Nagamani, S Thayumanavan

  • 1Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA.

Journal of the American Chemical Society
|March 18, 2009
PubMed
概括
此摘要是机器生成的。

我们开发了一种新的三重刺激响应的聚合物组件. 这种先进的材料通过响应温度,pH值和氧化还原潜力来精确控制药物释放,以实现目标的输送.

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Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
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Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
09:02

Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Published on: July 9, 2015

相关实验视频

Last Updated: Jun 24, 2026

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions
10:53

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Published on: October 10, 2016

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
11:42

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers

Published on: June 20, 2019

Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
09:02

Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Published on: July 9, 2015

科学领域:

  • 生物医学工程 生物医学工程
  • 材料科学 材料科学 材料科学
  • 聚合物化学 聚合物化学

背景情况:

  • 响应刺激的聚合物对于先进的生物医学应用至关重要.
  • 开发能够应对多种环境触发因素的材料是关键的研究领域.

研究的目的:

  • 设计和描述一种对温度,pH值和氧化还原潜力敏感的新型块共聚合物组件.
  • 通过单个和组合的刺激来研究封装分子的受控释放.

主要方法:

  • 一个块共聚合物的合成,其中有一个对酸敏感的疏水区 (THP 保护的 HEMA) 和一个对温度敏感的疏水区 (PNIPAM).
  • 加入一个二硫化键,以实现氧化还原反应.
  • 在各种刺激条件下评估状物质和客分子释放动力学.

主要成果:

  • 块共聚合物组件单独和组合显示出对温度,pH和氧化还原潜力的敏感性.
  • 组合刺激允许微调药物释放动力学.
  • 该系统显示了特定位置药物输送的潜力.

结论:

  • 开发的三重刺激响应聚合物组件为控制和向药物输送提供了一个多功能平台.
  • 多刺激响应性提供了对释放配置文件的增强控制.
  • 这项技术有望提高生物医学治疗的疗效和特异性.