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Plasma membrane imaging with a fluorescent benzothiadiazole derivative
Pedro H P R Carvalho1,2, Jose R Correa1, Karen L R Paiva1
1Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, Brasília, Distrito Federal, 70904-970, Brazil.
Beilstein Journal of Organic Chemistry
|December 7, 2019
Summary
Researchers developed a novel, water-soluble fluorescent dye for selective plasma membrane imaging. This new bioprobe demonstrates excellent photostability and affinity across various cell lines.
Area of Science:
- Organic Chemistry
- Biophysics
- Cell Biology
Background:
- Developing selective and stable fluorescent probes is crucial for advanced cellular imaging.
- Plasma membrane visualization requires probes with specific targeting and robust photophysical properties.
Purpose of the Study:
- To synthesize and characterize a novel water-soluble fluorescent 2,1,3-benzothiadiazole derivative.
- To evaluate its potential as a selective bioprobe for plasma membrane imaging in various cell lines.
Main Methods:
- Two-step synthesis of the fluorescent compound.
- Photophysical property evaluation, including photostability in different solvents.
- Density Functional Theory (DFT) calculations to understand electronic properties.
- In vitro imaging experiments on multiple cell lines.
Main Results:
- Efficient synthesis achieved with good yields.
- The dye exhibits excellent photostability and water solubility.
- DFT calculations elucidated the intramolecular charge-transfer stabilization mechanism.
- Selective plasma membrane targeting and imaging were confirmed in tested cell lines.
Conclusions:
- The novel fluorescent derivative is a promising, water-soluble, and selective bioprobe for plasma membrane imaging.
- Its stability and targeting capabilities make it suitable for diverse cellular studies.
- The compound offers a valuable tool for live-cell imaging applications.
