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Aldehyde modified nanocellulose-based fluorescent hydrogel toward multistage data security encryption.

Sijie Wang1, Han Zhong2, Zhiguo Wang2

  • 1Academy of Advanced Carbon Conversion Technology, Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, Xiamen 361021, China; Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China.

International Journal of Biological Macromolecules
|November 29, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces a novel fluorescent hydrogel for advanced data security. The material offers multistage encryption capabilities, enhancing information storage security through responsive fluorescence and 3D fabrication.

Keywords:
Aldehyde cellulose nanofibrilsCarbon quantum dotsData encryptionFluorescent hydrogel

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Nanotechnology

Background:

  • Current single-stage encryption methods lack robust security for encoded information storage.
  • Fluorescent materials offer potential for dynamic data security applications.

Purpose of the Study:

  • To develop a fluorescent hydrogel for multistage data security encryption.
  • To enhance information storage security beyond single-stage methods.

Main Methods:

  • Fabrication of a polyvinyl alcohol/dialdehyde cellulose nanofibrils/carbon quantum dots hydrogel.
  • Utilizing chemical crosslinking and hydrogen bonding for network formation.
  • Introducing nitrogen-doped carbon quantum dots via a hydrothermal method.

Main Results:

  • The hydrogel exhibits high stretchability (530%) and strength (0.96 MPa).
  • Demonstrated Fe3+-responsive fluorescence quenching and ascorbic acid-triggered recovery.
  • Achieved borax-triggered shape memory and 3D data encryption through hydrogel assembly.
  • Realized 3D data encryption and erasure using alternating Fe3+ and ascorbic acid treatments.

Conclusions:

  • The developed fluorescent hydrogel provides a facile and general strategy for high-security information encryption.
  • The material's properties enable advanced data protection in 2D and 3D formats.
  • This work advances the field of secure information storage using smart hydrogels.