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Related Experiment Video

Updated: Jan 8, 2026

Soft Lithographic Functionalization and Patterning Oxide-free Silicon and Germanium
12:38

Soft Lithographic Functionalization and Patterning Oxide-free Silicon and Germanium

Published on: December 16, 2011

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Self-growth of programmable 2D- and 3D-coupling responsive coating for anti-counterfeiting.

Hong Wang1,2,3, Haitao Deng1,2, Junyi Chen1,2

  • 1Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan, China.

Nature Communications
|December 22, 2025
PubMed

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Summary

This study introduces a novel self-growing method for programmable dual-mode coatings, integrating 2D/3D responsive information for advanced anti-counterfeiting and encryption. The coating exhibits reversible fluorescence and shape-memory properties, enhancing security.

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Supramolecular Chemistry

Background:

  • Developing secure anti-counterfeiting and information encryption methods is crucial.
  • Integrating stimuli-responsive two-dimensional (2D) and three-dimensional (3D) information into a single platform remains a challenge.
  • Existing approaches often lack effective methods for combining these distinct responsive functionalities.

Purpose of the Study:

  • To develop a self-growing method for creating programmable dual-mode (2D/3D) responsive coatings.
  • To integrate photoswitchable fluorescence (2D information) and stimuli-responsive shape memory (3D information) into a single coating.
  • To demonstrate the application potential for advanced multi-dimensional anti-counterfeiting and information encryption.

Main Methods:

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Last Updated: Jan 8, 2026

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  • Utilized a self-growing approach incorporating trifluoromethyl-rich monomers (TFEMA, HFBA), a polymerizable fluorescent dye (MNEA), and a photochromic diarylethene derivative (BTBA).
  • Achieved reversible fluorescence switching (green to red) via photo-induced fluorescence resonance energy transfer (FRET) between MNEA and BTBA.
  • Engineered reversible 3D structural switching using force- and thermo-induced shape memory driven by dipole-dipole interactions and covalent bonds.

Main Results:

  • Successfully developed a coating capable of independent 2D and 3D information switching.
  • Demonstrated reversible fluorescence switching from green to red through FRET.
  • Exhibited reversible 3D structural changes based on force- and thermo-induced shape memory.
  • Confirmed that stimulating 2D information does not affect the 3D information, and vice versa.

Conclusions:

  • The developed self-growing method effectively integrates stimuli-responsive 2D and 3D information into a single coating.
  • The programmable dual-mode responsive coating shows significant potential for high-security, multi-level anti-counterfeiting and information encryption.
  • This approach paves the way for advanced anti-counterfeiting, multilevel information encryption, and high-density data storage applications.