首页|Multicolor Anti-counterfeiting Strategy and Synchronous High Capacity Storage Based on Acidochromic Organic Fluorescent Materials

Multicolor Anti-counterfeiting Strategy and Synchronous High Capacity Storage Based on Acidochromic Organic Fluorescent Materials

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Many industries are plagued by economic losses and product failures caused by counterfeit goods.Therefore,advanced an-ti-counterfeiting techniques are continuously needed.In this study,we constructed a series of acid-base sensitive cyclic chalcone dyes A-F by modifying different electron-donating groups.Differences in acid sensitivity of different structures are well rationalised by NMR and theoretical calculations.Aniline is difficult to protonate than fatty amines,so there is a difference in fluorescence.Hiding and anti-counterfeiting of information is achieved by this phenomenon.Powder X and Y are the anti-counterfeit fluorescent powder con-taining montmorillonite and cyclic chalcone,which have orange fluorescence and the very similar appearance.However,under the in-fluence of acid the Powder X containing triphenylamine modified cyclic chalcone shows red shifted fluorescence and Powder Y con-taining morpholino and diethylamino groups modified cyclic chalcone shows blue shifted fluorescence.Therefore,the an-ti-counterfeiting strategy based on cyclic chaicone is not only limited to UV-irradiated fluorescence development,but also has more colorization and pattern variations with the aid of acid developer.Data encryption and decryption of numbers,English alphabets and Chinese characters have been realized using A—F,which have great potential for practical applications.

Cyclic chalconesAnti-counterfeitingEncryptionAcid sensitivityOrganic fluorescent dye

Ying Fang、Jun-Yu Luan、Li-Hao Liu、Ying-Qing Huang、Yi-Ning Luo、Kun-Peng Wang、Shaojin Chen、Hai-Yu Hu、Zhi-Qiang Hu

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Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science,MOE,College of Chemistry and Molecular Engineering,Qingdao University of Science and Technology,Qingdao,Shandong 266042,China

State Key Laboratory of Bioactive Substances and Function of Natural Medicine,Institute of Materia Medica,Peking Union Medical College and Chinese Academy of Medical Sciences,Beijing 100050,China

2024

10.1002/cjoc.202400259

中国化学(英文版)
中国化学会 上海有机化学研究所

中国化学(英文版)

CSTPCD
影响因子：0.848
ISSN：1001-604X
年,卷(期)：2024.42(19)