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Types of Step-Growth Polymers: Polyesters

Types of Step-Growth Polymers: Polyesters

The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...

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Updated: Jul 19, 2025

Stabilizing Hepatocellular Phenotype Using Optimized Synthetic Surfaces

Stabilizing Hepatocellular Phenotype Using Optimized Synthetic Surfaces

Published on: September 26, 2014

通过转尿化利用聚氨的高效单步被动化.

Benoît Rhoné¹, Anouk Galtayries¹, Vincent Semetey¹

¹Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 11 Rue Pierre et Marie Curie, Paris, 75005, France.

Macromolecular bioscience

|August 8, 2023

概括

此摘要是机器生成的。

研究人员开发了一种新方法,将聚乙烯糖醇 (PEG) 移植到聚氨表面上. 这创造了抗粘性,水友的表面,减少了蛋白质,细胞和细菌的粘附,以获得更好的医疗设备.

关键词:

防腐污染防腐污染的方法接种方式接种方式聚氨是一种聚氨.表面的表面表面的表面表面的表面转尿化转尿化

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Soft Lithographic Functionalization and Patterning Oxide-free Silicon and Germanium

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Published on: December 16, 2011

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Last Updated: Jul 19, 2025

Stabilizing Hepatocellular Phenotype Using Optimized Synthetic Surfaces

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Published on: September 26, 2014

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

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Published on: March 8, 2019

Soft Lithographic Functionalization and Patterning Oxide-free Silicon and Germanium

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Published on: December 16, 2011

科学领域:

生物材料科学生物材料科学
表面化学表面化学
聚合物科学聚合物科学

背景情况:

在医疗器械上不受控制的生物物质积累导致不良宿主反应和并发症.
蛋白质吸附和细胞粘附是导致设备故障和患者损害的关键问题.
开发生物相容表面对于有效的医疗器械性能至关重要.

研究的目的:

开发一种有效的方法,用于将聚乙烯糖醇 (PEG) 接种在聚氨 (PU) 表面上.
在PU上创建抗粘和水友的表面,用于生物医学应用.
为了评估生物材料在修改PU表面上的粘附率的降低.

主要方法:

采用了一种新型的转尿化反应,将PEG单步移植到PU上.
该PEG基被deprotonated和与PU表面反应.
表面分析技术证实了成功的接种和水友性层的形成. 生物测试评估了蛋白质,细胞,血小板和细菌粘附.

主要成果:

聚乙烯甘醇) 已成功地移植到聚氨表面.
在PU表面形成了一层水友性聚合物层,表面分析证实了这一点.
与未经处理的表面相比,经过修改的表面表现出明显较低的蛋白质,细胞,血小板和细菌粘附.

结论:

开发的转尿化战略提供了一种有效的方法,用于创建抗粘性PU表面.
植入PEG的PU表面显示生物污染减少,这表明生物医学应用的潜力.
这种表面修饰方法为改善医疗器械生物相容性提供了一个有希望的策略.