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Aggregation-Induced Emission-Active Gels: Fabrications, Functions, and Applications.

Zhao Li1, Xiaofan Ji2, Huilin Xie3,4

  • 1Institute of Engineering Medicine, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, 100081, China.

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Aggregation-induced emission (AIE) luminogens (AIEgens) in gels offer bright fluorescence by restricting molecular motion. This review details AIE-active gel fabrication, properties, and applications, highlighting future research directions.

Keywords:
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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Organic Chemistry

Background:

  • Aggregation-induced emission (AIE) luminogens (AIEgens) exhibit fluorescence in aggregated states, contrasting with solution-phase quenching.
  • Gels, as solvent-swollen materials, offer unique environments to control molecular motion and AIE properties.

Purpose of the Study:

  • To provide a comprehensive overview of AIE-active gels.
  • To detail fabrication strategies and summarize AIEgen applications.
  • To reveal gel functions, structure-property relationships, and diverse applications of AIE-active gels.

Main Methods:

  • Review of fabrication strategies for AIE-active gels.
  • Summarization of AIEgen applications within gel matrices.
  • Analysis of structure-property relationships in AIE-active gels.

Main Results:

  • AIE-active gels demonstrate tunable fluorescence properties due to controlled intramolecular motion.
  • Various fabrication methods enable the creation of AIE-active gels with specific functionalities.
  • AIE-active gels show promising applications across diverse scientific and technological fields.

Conclusions:

  • AIE-active gels represent a significant advancement in functional materials, leveraging AIE phenomena within gel networks.
  • Further research into fabrication, structure-property correlations, and application development is crucial for unlocking their full potential.
  • This review aims to inspire novel research and material design in the field of AIE-active gels.