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Encoding, Reading, and Transforming Information Using Multifluorescent Supramolecular Polymeric Hydrogels.

Xiaofan Ji1, Ren-Tsung Wu1, Lingliang Long1,2

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Researchers developed transformable fluorescent hydrogel 3D codes. These smart materials can change information via physical or chemical stimuli, enabling applications in wearable technology.

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Area of Science:

  • Materials Science
  • Chemistry
  • Biotechnology

Background:

  • Traditional 1D, 2D, and 3D codes offer convenient information readout but lack transformability.
  • Manipulating and transforming encoded information in conventional codes is challenging.

Purpose of the Study:

  • To develop novel fluorescent hydrogels capable of constructing transformable 3D codes.
  • To enable information transformation through physical or chemical stimuli for advanced applications.

Main Methods:

  • Preparation of three fluorescent hydrogels (blue, green, red) with recognition motifs and fluorophores.
  • Construction of 3D codes (Code A, B, C) via physical adhesion, read out by smartphone.
  • Demonstration of information transformation using cut-and-adhesion (physical) and ammonia-responsive fluorophore (chemical) methods.

Main Results:

  • Successfully created fluorescent color 3D codes using hydrogel building blocks.
  • Demonstrated physical transformation of Code B to Code A via cutting and adhesion.
  • Showcased chemical transformation of Code C to Code A using an ammonia-responsive hydrogel.

Conclusions:

  • Developed transformable 3D codes using fluorescent hydrogels.
  • Encoded information can be altered through physical manipulation or chemical stimuli.
  • The soft, transformable nature of these hydrogel codes makes them suitable for wearable material applications.