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BioAIEgens derived from rosin: how does molecular motion affect their photophysical processes in solid state?

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Researchers developed sustainable, bright luminogens from natural rosin. These materials exhibit aggregation-induced emission and anti-quenching properties, overcoming limitations of current synthetic luminogens.

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Area of Science:

  • Materials Science
  • Organic Chemistry
  • Biotechnology

Background:

  • Synthetic luminogens often suffer from aggregation-caused quenching and lack sustainability.
  • Renewable and solid-state emissive materials are crucial for advanced applications.

Purpose of the Study:

  • To develop sustainable luminogens with aggregation-induced emission (AIE) properties.
  • To investigate the role of alicyclic moieties in enhancing solid-state luminescence.
  • To explore biocompatible AIEgens for organelle imaging.

Main Methods:

  • Facile synthesis of natural rosin-derived luminogens.
  • Characterization of photophysical properties, including aggregation-induced emission.
  • Mechanistic studies on the influence of alicyclic structures on luminescence.
  • Evaluation of biocompatibility and organelle imaging capabilities.

Main Results:

  • A new class of rosin-derived aggregation-induced emission luminogens (AIEgens) were successfully synthesized.
  • These AIEgens exhibit bright solid-state emission and resistance to aggregation-caused quenching.
  • The presence of alicyclic moieties was found to suppress molecular motion, enhancing emission.
  • Demonstrated good biocompatibility and targeted organelle imaging potential.

Conclusions:

  • Natural rosin is a viable and sustainable source for novel AIEgens.
  • Alicyclic moiety engineering is an effective strategy for designing solid-state luminogens.
  • The developed AIEgens show promise for bioimaging and materials science applications.