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Published on: June 10, 2021
Fluorogenic polymethine dyes by intramolecular cyclization
Annabell Martin1, Pablo Rivera-Fuentes2
1Department of Chemistry, University of Zurich, Zurich, Switzerland; École Polytechnique Fédérale de Lausanne, Institute of Chemical Sciences and Engineering, Lausanne, Switzerland.
Researchers developed new fluorogenic polymethine dyes for clearer live-cell imaging. These advanced dyes overcome limitations of previous versions, improving intracellular visualization in biological studies.
Area of Science:
- Biochemistry
- Molecular Biology
- Microscopy
Background:
- Fluorescence imaging is essential for studying biological processes.
- Cell-permeable fluorogenic dyes are key for specific intracellular visualization.
- Polymethine dyes are important fluorophores but face challenges in live-cell imaging due to high background and low membrane permeability.
Purpose of the Study:
- To review recent advancements in developing fluorogenic polymethine dyes.
- To highlight the strategy of intramolecular cyclization for dye improvement.
- To discuss the future potential of these dyes in bioimaging.
Main Methods:
- Review of recent scientific literature on polymethine dye development.
- Focus on synthesis strategies involving intramolecular cyclization.
- Analysis of dye properties related to fluorescence and cell permeability.
Main Results:
- Recent progress in creating fluorogenic polymethine dyes using intramolecular cyclization.
- Demonstration of improved properties addressing limitations of older dyes.
- Potential for enhanced specificity and reduced background fluorescence.
Conclusions:
- Fluorogenic polymethine dyes developed via intramolecular cyclization show promise for live-cell bioimaging.
- These advancements can overcome previous limitations, enabling better visualization of intracellular structures.
- Future applications in single-molecule localization microscopy and in vivo imaging are expected.
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