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Cationic Solution and Solid-State Emitters - Robust Imaging Agents for Cells, Bacteria, and Protists.

Justin Dubbert1, Alexander Höing2, Nadine Graupner3

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Chemistry (Weinheim an Der Bergstrasse, Germany)
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Summary
This summary is machine-generated.

Researchers developed new cationic emitters for biological imaging. These robust solution and solid-state emitters (SSSE) offer high quantum yields and stability, imaging diverse biological targets effectively.

Keywords:
HeLa cellsbacteriabioimagingemissionprotists

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Area of Science:

  • Photochemistry and Photophysics
  • Materials Science
  • Biotechnology

Background:

  • Development of novel luminescent materials for biological imaging is crucial.
  • Existing luminophores often suffer from aggregation-induced emission (AIE) or aggregation-caused quenching (ACQ) issues.
  • Cationic compounds offer unique photophysical properties for advanced applications.

Purpose of the Study:

  • To present a library of eight novel cationic emitters with solution and solid-state emission properties (SSSE).
  • To investigate the photophysical characteristics of these emitters.
  • To evaluate their potential for biological imaging applications across various targets.

Main Methods:

  • Synthesis of eight distinct cationic compounds featuring ammonium or pyridinium groups.
  • Characterization of photophysical properties, including quantum yields and stability.
  • In vitro testing of emitters for imaging diverse biological targets: bacterial strains, human cells, and protists.

Main Results:

  • All eight cationic emitters demonstrated efficient emission in both solution and solid-state.
  • Compounds exhibited high quantum yields and excellent stability during imaging experiments.
  • Successful imaging of a broad range of biological targets, including bacteria, human cells, and protists.

Conclusions:

  • The developed SSSE approach provides a rapid and facile method for designing and applying robust, affordable emitters.
  • These novel emitters overcome limitations associated with traditional luminophores exhibiting AIE or ACQ.
  • The SSSE offer significant potential for advancing biological imaging techniques with superior performance and versatility.