.png){kind=icon}
返回
Does Supramolecular Gelation Require an External Trigger?
.png){kind=icon}
OA
AI
DOI：10.3390/gels8120813.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The supramolecular gelation of small molecules is typically preceded by an external stimulus to trigger the self-assembly. The need for this trigger stems from the metastable nature of most supramolecular gels and can limit their applicability. Herein, we present a small urea-based molecule that spontaneously forms a stable hydrogel by simple mixing without the addition of an external trigger. Single particle tracking experiments and observations made from scanning electron microscopy indicated that triggerless gelation occurred in a similar fashion as the archetypical heat-triggered gelation. These results could stimulate the search for other supramolecular hydrogels that can be obtained by simple mixing. Furthermore, the mechanism of the heat-triggered supramolecular gelation was elucidated by a combination of molecular dynamics simulations and quantitative NMR experiments. Surprisingly, hydrogelation seemingly occurs via a stepwise self-assembly in which spherical nanoparticles mature into an entangled fibrillary network.
Keyword:
gels
self-assembly
single particle tracking
external stimuli
LMWG
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
5.3
论文数:
5.0K
被引数:
1.4W
机构
引用论文
分享收藏Polyaniline-modified activated carbon electrodes for capacitive deionisation用于电容去离子的聚苯胺改性活性炭电极.png)
Desalination
DesalinationIF0
PREAI
分享收藏分享收藏
查看更多内容