调之星聚合物架构,以量身定制二级结构和机械性能的Diblock聚化水凝直接墨水写作
Muireann Cosgrave1,2, Kulwinder Kaur3,4, Christopher Simpson3,4
1Department of Chemistry, RCSI University of Medicine and Health Sciences, Dublin D02 YN77, Ireland.
Biomacromolecules
|December 19, 2024
概括
研究人员开发了用于先进3D打印的新型两星形共聚. 这些水凝墨水提供可调节的机械性能和优良的生物相容性,用于生物医学应用.
科学领域:
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
- 聚合物化学 聚合物化学
背景情况:
- 水凝的三维 (3D) 打印对于电子和生物医学至关重要.
- 传统的水凝如凝,酸盐和氨酸在机械复制性和3D打印能力方面存在局限性.
研究的目的:
- 开发一种高性能水凝替代品,具有可调节的机械性能和改进的3D打印能力.
- 为了研究用于先进的水凝油墨应用的两星形双块共聚.
主要方法:
- 合成由l-谷氨酸和l-氨酸残留物组成的两星形双块共聚.
- 通过由疏水性l-leucine块驱动的形状自组装的水凝形成的表征.
- 评估剪切稀释,自我恢复和直接墨水写作能力.
- 在甲基胺功能化后,使用可见光 (405nm) 进行3D打印结构的照片交叉链接.
- 使用MC3T3细胞评估水凝墨水的生物相容性.
主要成果:
- 自发的水凝形成,通过变化的恒星拓学来实现可调整的机械性能.
- 由于剪切稀释和自我恢复特性,已被证明适用于水凝油墨.
- 成功制造出精确定义的3D打印结构,使用快速的照片交叉链接.
- 确认了水凝油墨与封装和表面种子细胞的良好生物相容性.
结论:
- 两星形共聚为3D打印提供了对传统水凝的有希望的高性能替代品.
- 开发的水凝油墨具有可调节的机械性,优良的打印性和生物相容性,适合在电子和生物医学领域的先进应用.
相关概念视频
02:34Structural Isomerism
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
01:20Aldehydes and Ketones with Water: Hydrate Formation
An oxygen-based nucleophile, like water, can undergo addition reactions with aldehydes and ketones. The reaction leads to the formation of hydrates, also referred to as 1,1-diols or geminal diols.
The formation of hydrates is a reversible reaction. Hydrate formation is influenced by steric and electronic factors accompanying the alkyl substituents on the carbonyl group: The rate of hydrate formation increases with a decrease in the number of alkyl groups attached to the carbonyl carbon. Hence,...
The formation of hydrates is a reversible reaction. Hydrate formation is influenced by steric and electronic factors accompanying the alkyl substituents on the carbonyl group: The rate of hydrate formation increases with a decrease in the number of alkyl groups attached to the carbonyl carbon. Hence,...