超分子凝胶中的聚集诱导荧光增强效应
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- 英文论文题名：The Aggregation Induced Enhanced Emission in Supramolecular Gels
- 论文作者：蒋和金 ; 张莉 ; 刘鸣华
- 英文论文作者：Hejin Jiang ; Li Zhang ; Minghua Liu ; Beijing National Laboratory for Molecular Science ; CAS Key Laboratory of Colloid ; Interface ; and Chemical Thermodynamics ; Institute of Chemistry ; Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院化学研究所胶体界面与化学热力学重点实验室北京分子科学国家实验室;
- 论文关键词：自组装 ; 超分子凝胶 ; 聚集诱导荧光增强 ; 手性传递
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十四分会：超分子组装与软物质材料
- 语种：中文
- 分类号：O648.17
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十四分会 ; 超分子组装与软物质材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：181k
- 原文格式：D
- 会议级别：全国
摘要
超分子凝胶作为一种重要的智能软物质材料,广泛的被用于生物传感器、分子识别、手性催化和模板合成等方面。我们设计了几种谷氨酸衍生物的凝胶因子,我们将这些凝胶因子按照一定比例与多种带负电的荧光染料自组装成胶。实验发现,不带电的凝胶因子能够使染料的荧光增强,而带电的凝胶因子能使荧光染料的荧光猝灭。同时还实现了手性传递,并且实现诱导CPL信号。这为我们研究荧光开关,实现荧光的增强和湮灭的可逆控制提供了条件。
Supramolecular gel, as a kind of important softer matter and smart materials, can find widespread application in the field of sensor、molecular recognition、catalysis and template synthesis. In this study, we designed several gelators of glutamic acid derivatives. A variety of anionic fluorescent dyes were mixed with the gelators, which could fabricate into gel through self-assembling. Interestingly, we observed that the neutral gelator displayed an aggregation induced enhanced emission, while the positively charged gelator quenched the fluorescence. In addition, in this system we could achieve chiral transfer and induced CPL, which gives us a method to fabricate fluorescence switch and realize the reversible control of fluorescence intensity.
Supramolecular gel, as a kind of important softer matter and smart materials, can find widespread application in the field of sensor、molecular recognition、catalysis and template synthesis. In this study, we designed several gelators of glutamic acid derivatives. A variety of anionic fluorescent dyes were mixed with the gelators, which could fabricate into gel through self-assembling. Interestingly, we observed that the neutral gelator displayed an aggregation induced enhanced emission, while the positively charged gelator quenched the fluorescence. In addition, in this system we could achieve chiral transfer and induced CPL, which gives us a method to fabricate fluorescence switch and realize the reversible control of fluorescence intensity.
引文
[1]Liu,C.;Jin,Q.;Lv,K.;Zhang,L.*.;Liu,M.*.Chem.Commun.2014,50:3702.
[2]Yang,D.;Liu,C.;Zhang,L.*.;Liu,M.*.Chem.Commun.2014,50:12688.
[2]Yang,D.;Liu,C.;Zhang,L.*.;Liu,M.*.Chem.Commun.2014,50:12688.