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

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

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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.

Supramolecular chemistryMulticolor fluorescenceWhite light emissionTime-dependent fluorescenceInformation encryption

Zixi Zou、Jingyuan Wang、Yian Sun、Qian Wang、Da-Hui Qu

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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

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaShanghai Municipal Science and Technology Major ProjectInnovation Program of Shanghai Municipal Education CommissionFundamental Research Funds for the Central Universities,the Programme of Introducing Talents of Discipline to UniversitiesScience and Technology Commission of Shanghai MunicipalityStarry Night science Fund of Zhejiang University Shanghai Institute for Advanced Study

22220102004220255032018SHZDZX032023ZKZD40B1601721JC1401700SN-ZJU-SIAS-006

2024

10.1016/j.cclet.2023.108972

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
年,卷(期)：2024.35(7)