文献类型：期刊文献

英文题名：Cucurbit[8]uril-mediated multi-color fluorescence system for time-dependent information encryption

作者：Lin, Biyan[1,2];Wang, Qian[1,2];Qi, Zhen[1,2];Xu, Hanren[1,2];Qu, Da-Hui[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Inst Fine Chem, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem,Joint I, Shanghai 200237, Peoples R China

年份：2023

卷号：66

期号：4

起止页码：1111

外文期刊名：SCIENCE CHINA-CHEMISTRY

收录：;EI(收录号：20231113698367);WOS:【SCI-EXPANDED(收录号:WOS:000946839100001)】；

基金：This work was supported by the National Natural Science Foundation of China (22025503, 22220102004), the Shanghai Municipal Science and Technology Major Project (2018SHZDZX03), the Fundamental Research Funds for the Central Universities, the Programme of Introducing Talents of Discipline to Universities (B16017), the Science and Technology Commission of Shanghai Municipality (21JC1401700) and the Starry Night Science Fund of Zhejiang University Shanghai Institute for Advanced Study (SN-ZJU-SIAS-006). The authors 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

外文关键词：host-guest systems; fluorescence; multi-color emission; information encryption; cucurbit[8]uril

摘要：Programming microscopic assembly mode to control macroscopic property is an attractive research objective. In particular, controlling molecular assembly to control fluorescence is of considerable interest for developing smart fluorescent materials. Herein, a color-tunable supramolecular emissive system was developed based on cucurbit[8]uril mediated host-guest assembly. Chemical designing for the molecular structures with minimized change resulted in different assembly modes and hence generating distinctive fluorescence, including green, yellow and orange with the addition of cucurbit[n]uril. Taking advantage of this feature, the advanced information encryption material (4D code) with multiple encryption levels and time-dependent encryption feature was developed. Such a code was dynamic on time scale, generating a series of 3D codes with time. The encrypted information only can be recognized by integrating time-coursed codes. This work provides a new insight for designing intelligent fluorescent materials for information encryption with high level of security.