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Article

Construction of Heterogeneous Aggregation-Induced Emission Microspheres with Enhanced Multi-Mode Information Encryption

by
Zhiwei Wu
1,
Weiqin Yu
1,
Fenghao Luo
2,
Yue Jin
1,
Ligou Pan
1,
Qianjun Deng
1,
Qing Wang
3 and
Mingguang Yu
1,*
1
Guangdong Key Laboratory for Hydrogen Energy Technologies, Key Laboratory of Digital Decorative Materials for Building Ceramics in Guangdong Province, School of Materials and Energy, Foshan University, Foshan 528000, China
2
School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China
3
Laboratory of Quality & Safety Risk Assessment for Agro-Products, School of Food & Pharmaceutical Engineering, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Technology Research Center of Food & Agricultural Product Safety Analysis and Testing, Zhaoqing University, Zhaoqing 526061, China
*
Author to whom correspondence should be addressed.
Molecules 2024, 29(24), 5852; https://doi.org/10.3390/molecules29245852
Submission received: 4 November 2024 / Revised: 25 November 2024 / Accepted: 27 November 2024 / Published: 11 December 2024
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Abstract

Traditional organic light-emitting materials hinder their anti-counterfeiting application in solid state due to their aggregation-caused quenching effect. A facile and straightforward method was reported to introduce AIE molecules into microspheres and manipulate different reaction parameters to prepare AIE microspheres with different morphologies. In this strategy, fluorescent microspheres with spherical, apple-shaped, and hemoglobin-like types were synthesized. Driven by the photocyclization and oxidation of tetraphenylethene, microspheres can be used as an aqueous fluorescence ink with erasable properties. The fluorescent patterns printed by microsphere ink on paper can be irreversibly erased by prolonged exposure to ultraviolet light (365 nm, 60 mw/cm2). Moreover, the multi-morphology microspheres can be further arranged for multiple-information encryption and anti-counterfeiting of barcodes and two-dimensional codes, in which double validation was carried out through fluorescence spectroscopy and laser confocal microscopy. This approach provides a new method for more reliable anti-counterfeiting and information encryption.
Keywords: AIE; heterogeneous microspheres; multi-mode information encryption; anti-counterfeiting; optical erasure AIE; heterogeneous microspheres; multi-mode information encryption; anti-counterfeiting; optical erasure
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MDPI and ACS Style

Wu, Z.; Yu, W.; Luo, F.; Jin, Y.; Pan, L.; Deng, Q.; Wang, Q.; Yu, M. Construction of Heterogeneous Aggregation-Induced Emission Microspheres with Enhanced Multi-Mode Information Encryption. Molecules 2024, 29, 5852. https://doi.org/10.3390/molecules29245852

AMA Style

Wu Z, Yu W, Luo F, Jin Y, Pan L, Deng Q, Wang Q, Yu M. Construction of Heterogeneous Aggregation-Induced Emission Microspheres with Enhanced Multi-Mode Information Encryption. Molecules. 2024; 29(24):5852. https://doi.org/10.3390/molecules29245852

Chicago/Turabian Style

Wu, Zhiwei, Weiqin Yu, Fenghao Luo, Yue Jin, Ligou Pan, Qianjun Deng, Qing Wang, and Mingguang Yu. 2024. "Construction of Heterogeneous Aggregation-Induced Emission Microspheres with Enhanced Multi-Mode Information Encryption" Molecules 29, no. 24: 5852. https://doi.org/10.3390/molecules29245852

APA Style

Wu, Z., Yu, W., Luo, F., Jin, Y., Pan, L., Deng, Q., Wang, Q., & Yu, M. (2024). Construction of Heterogeneous Aggregation-Induced Emission Microspheres with Enhanced Multi-Mode Information Encryption. Molecules, 29(24), 5852. https://doi.org/10.3390/molecules29245852

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