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竞争式自组装动力学作为控制核心晶圆状菌体形态的途径
Jiangping Xu1, Hang Zhou1, Qing Yu1
1Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 1H6, Canada.
Journal of the American Chemical Society
|February 6, 2018
概括
控制块共聚物 (BCP) 的结晶动力学,可以精确地操纵自组合的菌根形态. 这项研究揭示了竞争性增长率如何决定是否形成不齐或分离的块化细胞,从而使新的混合材料成为可能.
科学领域:
- 聚合物化学
- 超分子化学
- 材料科学
背景情况:
- 区块共聚物 (BCP) 在选择性溶剂中的核化自我组装形成均的棒状.
- 已知含有聚铁二甲基 (PFS) 的结晶驱动的自组合可形成连续的块化细胞.
- 同时添加不同的BCP (生物共聚) 和它们在常见种子上的竞争动力学是不太了解的.
研究的目的:
- 系统地研究具有PFS的线性BCP对的竞争性种子生长动力学.
- 通过操纵这些动力学来证明对块化细胞形态的控制.
- 从这些自组装结构中探索层次和混合材料的形成.
主要方法:
- 使用线性含有PFS的BCP对进行竞争性种子生长动力学的系统研究.
- 分析个体BCP单体生长率如何影响组装行为和冠状体形态.
- 调查影响增长率差异的因素,如冠状病毒区块长度和收费引入.
主要成果:
- 个体BCP单体种子生长动力学在确定联合组装行为和冠状体形态方面占主导地位.
- 类似的表层生长率导致带有微相分离的冠状链的斑点性漫画细胞.
- 不同的生长速度促进了大规模的冠状体区分,形成了区块.
- 活着的comicelle termini有助于层次的自我组装和单元块的形成.
- 可加载黄金或纳米颗粒来创建有机-无机混合材料.
结论:
- 在常见种子上的BCP的竞争动力学可以被操纵以控制块化细胞形态.
- 这种控制可以创建层次的自组装结构和功能性的有机-无机混合材料用于催化.
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