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Related Experiment Video

Updated: Jul 30, 2025

Quasi-light Storage for Optical Data Packets
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A light-fueled dissipative aggregation-induced emission system for time-dependent information encryption.

Caixia Yang1,2,3, Hangxiang Xiao3, Zichen Luo3

  • 1Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou, 412007, P. R. China. jxtang0733@163.com.

Chemical Communications (Cambridge, England)
|May 12, 2023
PubMed
Summary

A novel light-fueled dissipative aggregation-induced emission (LDAIE) system was created. This system offers reversible, self-erasing fluorescence for secure time-dependent information encryption and anti-counterfeiting applications.

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Area of Science:

  • Materials Science
  • Photochemistry
  • Supramolecular Chemistry

Background:

  • Aggregation-induced emission (AIE) luminogens (AIEgens) are crucial for advanced optical materials.
  • Photochromic molecules, like spiropyrans, offer light-responsive functionalities.
  • Combining AIE and photochromism can lead to novel smart materials.

Purpose of the Study:

  • To fabricate a light-fueled dissipative aggregation-induced emission (LDAIE) system.
  • To investigate reversible fluorescence switching using electrostatic interactions.
  • To explore applications in information encryption and anti-counterfeiting.

Main Methods:

  • Synthesis of cationic AIEgens and anionic spiropyran (ASP) derived from sulfonato-merocyanine photoacid (SMEH).
  • Utilizing reversible electrostatic interactions for system assembly.
  • Irradiation with 420 nm light to trigger photoisomerization and fluorescence modulation.

Main Results:

  • Successful fabrication of the LDAIE system.
  • Demonstration of reversible and spontaneous AIE fluorescence on/off switching.
  • Exhibition of time-dependent information encryption with self-erasing capabilities.

Conclusions:

  • The developed LDAIE system shows significant potential for advanced optical applications.
  • This work provides a new strategy for creating fluorescent anti-counterfeiting platforms.
  • The reversible nature of the system enables secure, time-dependent data storage and retrieval.