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Simultaneous Measurement of Mitochondrial Calcium and Mitochondrial Membrane Potential in Live Cells by Fluorescent Microscopy
Published on: January 24, 2017
Cell-permeable iminocoumarine-based fluorescent dyes for mitochondria
Diliang Guo1, Tao Chen, Deju Ye
1State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P R China.
Organic Letters
|May 10, 2011
Summary
Researchers developed novel fluorescent probes, 2-iminocoumarin-3-carboxamide derivatives, using microwave-assisted synthesis. These probes are cell membrane permeable, exhibit low cytotoxicity, and can selectively stain organelles in living cells.
Area of Science:
- Organic chemistry
- Chemical biology
- Cell biology
Background:
- Small molecule fluorophores are essential tools in biological imaging.
- Developing novel fluorescent probes with improved properties like cell permeability and low cytotoxicity is crucial for advanced cellular studies.
Purpose of the Study:
- To synthesize and characterize a new class of small molecule fluorophores, specifically 2-iminocoumarin-3-carboxamide derivatives.
- To evaluate the cell membrane permeability, cytotoxicity, and organelle-specific staining capabilities of these novel fluorescent probes in living cells.
Main Methods:
- A rapid microwave-assisted synthesis was employed to generate the 2-iminocoumarin-3-carboxamide derivatives.
- Cellular imaging experiments were conducted using living cells to assess probe performance.
Main Results:
- The synthesized 2-iminocoumarin-3-carboxamide derivatives demonstrated effective cell membrane permeability.
- The fluorescent probes exhibited low cytotoxicity, ensuring minimal impact on cell viability.
- Selective staining of specific organelles within living cells was achieved using these novel probes.
Conclusions:
- The developed 2-iminocoumarin-3-carboxamide derivatives represent a promising class of fluorescent probes for live-cell imaging.
- These probes offer a valuable tool for researchers studying cellular processes due to their favorable properties and selective organelle staining capabilities.

