文献类型：期刊文献

英文题名：A dynamic assembly-induced emissive system for advanced information encryption with time-dependent security

作者：Wang, Qian[1,2];Lin, Biyan[1,2];Chen, Meng[1,2];Zhao, Chengxi[1,2];Tian, He[1,2];Qu, Da-Hui[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Joint Int Res Lab Precis Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：13

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000828281800012)】；

基金：This work was supported by National Natural Science Foundation of China (grants 21788102, 22025503, 21790361, 21871084), Shanghai Municipal Science and Technology Major Project (Grant 2018SHZDZX03), the Fundamental Research Funds for the Central Universities, the Programme of Introducing Talents of Discipline to Universities (grant B16017), Program of Shanghai Academic/Technology Research Leader (19XD1421100), Science and Technology Commission of Shanghai Municipality (21JC1401700) and the Starry Night Science Fund of Zhejiang University Shanghai Institute for Advanced Study (grant SN-ZJU-SIAS-006). The authors thank the Research Center of the Feringa Nobel Prize Scientist Joint and the Analysis and Test of East China University of Science and Technology and Research Center for help on the material characterization. We thank the staffs from BL19U2 beamline of National Facility for Proein Science in Shanghai (NFPS) at Shanghai Synchrotoron Radiation Facility, for assistance during data collection.

语种：英文

摘要：The development of advanced materials for information encryption is desirable. Here, the authors report materials that enable orthogonal and temporal encryption of information via dynamic assembly-induced multicolor pyrene-based supramolecular systems. The development of advanced materials for information encryption with time-dependent features is essential to meet the increasing demand on encryption security. Herein, smart materials with orthogonal and temporal encryption properties are successfully developed based on a dynamic assembly-induced multicolour supramolecular system. Multicolour fluorescence, including blue, orange and even white light emissions, is achieved by controlling the supramolecular assembly of pyrene derivatives by tailoring the solvent composition. By taking advantage of the tuneable fluorescence, dynamically controlled information encryption materials with orthogonal encryption functions, e.g., 3D codes, are successfully developed. Moreover, time-dependent information encryption materials, such as temporal multi-information displays and 4D codes, are also developed by enabling the fluorescence-controllable supramolecular system in the solid phase, showing multiple pieces of information on a time scale, and the correct information can be identified only at a specified time. This work provides an inspiring point for the design of information encryption materials with higher security requirements.