Controlling molecular assembly on time scale:Time-dependent multicolor fluorescence for information encryption

Zixi Zou ¹Jingyuan Wang ¹Yian Sun ¹Qian Wang ¹Da-Hui Qu¹

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作者信息

1. Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center,School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China
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Abstract

Dynamic assembly on time scale is common in biological systems but rare for artificial materials,espe-cially for smart luminescent materials.Programming molecular assembly in a spatio-temporal manner and resulting in white-light-including multicolor fluorescence with time-dynamic features remains chal-lenging.Herein,controlling molecular assembly on time scale is achieved by integrating a pH-responsive motif to a transient alkaline solution which is fabricated by activators(NaOH)and deactivators(esters),leading to automatic assembly on time scale and time-dependent multicolor fluorescence changing from blue to white and yellow.The kinetics of the assembly process is dependent on the ester hydrolysis process,which can be controlled by varying ester concentrations,temperature,initial pH,stirring rate and ester structures.This dynamic fluorescent system can be further developed for intelligent fluores-cent materials such as fluorescent ink,three-dimension(3D)codes and even four-dimension(4D)codes,exhibiting a promising potential for information encryption.

Key words

Supramolecular chemistry/Multicolor fluorescence/White light emission/Time-dependent fluorescence/Information encryption

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基金项目

National Natural Science Foundation of China(22220102004)

National Natural Science Foundation of China(22025503)

Shanghai Municipal Science and Technology Major Project(2018SHZDZX03)

Innovation Program of Shanghai Municipal Education Commission(2023ZKZD40)

Fundamental Research Funds for the Central Universities,the Programme of Introducing Talents of Discipline to Universities(B16017)

Science and Technology Commission of Shanghai Municipality(21JC1401700)

Starry Night science Fund of Zhejiang University Shanghai Institute for Advanced Study(SN-ZJU-SIAS-006)

出版年

2024

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCD

影响因子：0.771

ISSN：1001-8417

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