A stimuli-responsive supramolecular assembly between inverted cucurbit[7]uril and hemicyanine dye

被引：12
|
作者：
Gao, Zhong-Zheng [1 ]
Kan, Jinglan [2 ]
Tao, Zhu [1 ]
Bian, Bing [3 ]
Xiao, Xin [1 ]
机构：
[1] Guizhou Univ, Key Lab Macrocycl & Supramol Chem Guizhou Prov, Guiyang 550025, Guizhou, Peoples R China
[2] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Collaborat Innovat Ctr Functionalized Probes Chem, Key Lab Mol & Nano Probes,Minist Educ, Jinan 250014, Shandong, Peoples R China
[3] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266510, Peoples R China
来源：
NEW JOURNAL OF CHEMISTRY | 2018年 / 42卷 / 18期
基金：
中国国家自然科学基金;
关键词：
PEROXIDASE-LIKE ACTIVITY; HOST-GUEST COMPLEXES; CUCURBIT; 7; URIL; FLUORESCENCE ENHANCEMENT; ELECTRONIC-STRUCTURE; BINDING; PHOTOSTABILITY; NANOPARTICLES; CYCLODEXTRIN; MACROCYCLES;
D O I：
10.1039/c8nj03344g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The effect of inverted curcurbit[7]uril (iQ[7]) on the binding mode of 2-(4-(dimethylamino)styryl)-1-methylpyridinium (DASPMI) was determined in this study. A large fluorescence enhancement of DASPMI was realized by the formation of an inclusion complex with iQ[7]. A 1:1 inclusion complex was determined through UV absorption and fluorescence spectroscopies, H-1 nuclear magnetic resonance (NMR) spectroscopy, matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS), and isothermal titration calorimetry (ITC) at different pH values. In addition, we also devised a method for the controlled release of DASPMI from the iQ[7] macrocycle by adding ,-diamino-p-xylene.
引用
收藏
页码：15420 / 15426
页数：7
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