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Cyanostilbene-based vapo-fluorochromic supramolecular assemblies for reversible 3D code encryption.

Zhao Gao1, Ze Chen, Yifei Han

  • 1CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China. drfwang@ustc.edu.cn.

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Researchers developed a novel, reversible 3D code for secure scanning. This smart code uses luminescent supramolecular assemblies, offering a fast and intelligent solution to prevent information leakage and counterfeiting.

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Area of Science:

  • Materials Science
  • Chemistry

Background:

  • Conventional 1D barcodes and 2D QR codes face limitations in preventing information leakage and counterfeiting.
  • Existing encrypted 3D codes often rely on irreversible chemical reactions for decryption.
  • There is a need for advanced scanning codes with stimuli-triggered, reversible decryption capabilities.

Purpose of the Study:

  • To develop a novel, intelligent, and reversible 3D code encryption system.
  • To utilize the luminescent vapochromism of cyanostilbene-based supramolecular assemblies for secure information storage.
  • To provide a fast-response encryption and decryption mechanism for smart scanning codes.

Main Methods:

  • Construction of a 3D code using inkjet printing with cyanostilbene-based supramolecular assemblies.
  • Implementation of stimuli-triggered decryption using vapor fuming with chlorinated solvents.
  • Demonstration of reversible encryption by removing the vapor stimulus.

Main Results:

  • Successful development of a 3D code system exhibiting luminescent vapochromism.
  • Achieved specific information decryption triggered by chlorinated solvent vapors.
  • Demonstrated full reversibility of the encryption/decryption process with a fast response time.
  • Showcased the potential for high information variability due to the four-color capability of 3D codes.

Conclusions:

  • A novel and effective strategy for high-performance smart scanning codes has been established.
  • The developed system offers a reversible and intelligent approach to information security in scanning codes.
  • This work presents a significant advancement over irreversible decryption methods in encrypted 3D code technology.