文献类型：期刊文献

英文题名：Color-tunable single-fluorophore supramolecular system with assembly-encoded emission

作者：Wang, Qian[1,2];Zhang, Qi[1,2];Zhang, Qi-Wei[3];Li, Xin[4];Zhao, Cai-Xin[1,2];Xu, Tian-Yi[1,2];Qu, Da-Hui[1,2];Tian, He[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Joint Int Res Lab Precis Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]East China Normal Univ, Sch Chem & Mol Engn, Dongchuan Rd 500, Shanghai 200241, Peoples R China;[4]KTH Royal Inst Technol, Dept Theoret Chem & Biol, Sch Engn Sci Chem Biotechnol & Hlth, SE-10691 Stockholm, Sweden

年份：2020

卷号：11

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000511898900009)】；

基金：This work was supported by National Natural Science Foundation of China (grants 21788102, 21790361, 21871084, 21672060, 21421004), Shanghai Municipal Science and Technology Major Project (Grant no. 2018SHZDZX03), the Fundamental Research Funds for the Central Universities, the Program of Introducing Talents of Discipline to Universities (Grant B16017), Program of Shanghai Academic/Technology Research Leader (19XD1421100), and the Shanghai Science and Technology Committee (Grant 17520750100). We thank the Research Center of Analysis and Test of East China University of Science and Technology for help on the material characterization.

语种：英文

摘要：Regulating the fluorescent properties of organic small molecules in a controlled and dynamic manner has been a fundamental research goal. Although several strategies have been exploited, realizing multi-color molecular emission from a single fluorophore remains challenging. Herein, we demonstrate an emissive system by combining pyrene fluorophore and acylhydrazone units, which can generate multi-color switchable fluorescent emissions at different assembled states. Two kinds of supramolecular tools, amphiphilic self-assembly and gamma-cyclodextrin mediated host-guest recognition, are used to manipulate the intermolecular aromatic stacking distances, resulting in the tunable fluorescent emission ranging from blue to yellow, including a pure white-light emission. Moreover, an external chemical signal, amylase, is introduced to control the assembly states of the system on a time scale, generating a distinct dynamic emission system. The dynamic properties of this multi-color fluorescent system can be also enabled in a hydrogel network, exhibiting a promising potential for intelligent fluorescent materials.