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相关概念视频

Polymers: Molecular Weight Distribution01:10

Polymers: Molecular Weight Distribution

4.6K
For any given polymer, the weight average molecular weight (Mw) is higher than, if not equal to, the number average molecular weight (Mn). The only situation in which the weight average molecular weight and the number average molecular weight are equal is when a polymer consists only of chains with equal molecular weight. However, this never happens in a synthetic polymer, since it is difficult to control the polymerization process up to a molecular level with accuracy to a hundred percent.
4.6K
Polymer Classification: Architecture01:14

Polymer Classification: Architecture

3.7K
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
3.7K
Polymers: Defining Molecular Weight01:01

Polymers: Defining Molecular Weight

3.7K
Unlike small molecules with definite molecular weights, polymers are a mixture of individual polymer chains of varying lengths, each with a unique molecular weight.  So, the molecular weight of a polymer is expressed as an average value based on the average size of the polymer chains. The two most common forms of averages used for polymers are the number average molecular weight and weight average molecular weight.
The number average molecular weight (Mn) is the summation of the number...
3.7K
Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

3.2K
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...
3.2K
Molecular Weight of Step-Growth Polymers01:08

Molecular Weight of Step-Growth Polymers

2.7K
Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
2.7K

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相关实验视频

Updated: Jan 11, 2026

Polymer Microarrays for High Throughput Discovery of Biomaterials
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生物医学工程中的聚合物材料:一个图书法测绘绘图.

Cristina Veres1, Maria Tănase2, Dan-Alexandru Szabo3

  • 1Department of Industrial Engineering and Management, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Nicolae Iorga Street 1, 540088 Targu-Mures, Romania.

Polymers
|November 13, 2025
PubMed
概括
此摘要是机器生成的。

这项研究合成了用于生物医学工程的聚合物材料,重点是组织工程,药物输送,伤口愈合和3D打印. 关键的创新包括先进的脚手架和智能交付系统,尽管生物相容性和制造方面的挑战仍然存在.

关键词:
生物医学工程 生物医学工程药物输送是药物输送的过程.这种水凝是水凝.聚合物材料是一种聚合物材料.组织工程是组织工程.伤口愈合 伤口愈合

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相关实验视频

Last Updated: Jan 11, 2026

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13:37

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High-throughput Identification of Bacteria Repellent Polymers for Medical Devices
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High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

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Combinatorial Synthesis of and High-throughput Protein Release from Polymer Film and Nanoparticle Libraries
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科学领域:

  • 生物医学工程 生物医学工程
  • 聚合物材料科学 聚合物材料科学

背景情况:

  • 聚合物材料在生物医学工程中至关重要.
  • 重要的研究涉及组织工程,药物输送,伤口愈合和先进制造.

研究的目的:

  • 在生物医学工程中提供聚合物材料的综合合成.
  • 确定关键的研究领域,有影响力的材料类和持久的挑战.

主要方法:

  • 生物医学工程中的聚合物材料的文献综合和分析.
  • 确定主要的研究领域和材料类别.

主要成果:

  • 四个关键领域:组织工程,药物输送,伤口愈合和3D/4D打印.
  • 水凝,可生物降解复合材料和对刺激有反应性的聚合物具有影响力.
  • 在ECM模拟支架,智能药物输送,先进的伤口带和患者特定构造方面的进展.

结论:

  • 挑战包括长期生物相容性,可扩展的制造和监管标准化.
  • 未来的创新在于混合自然合成系统和个性化的聚合物设计.
  • 生物活性,可制造性和临床翻译的融合是关键.