Solvent switchable dual emission from a bichromophoric ruthenium-BODIPY complex
Aaron Martin1, Aisling Byrne1, Ciarán Dolan1
1School of Chemical Sciences, Dublin City University, Dublin 9, Ireland. tia.keyes@dcu.ie and National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland.
Chemical Communications (Cambridge, England)
|September 16, 2015
Summary
This study introduces a novel ruthenium-BODIPY molecule with dual emission that changes with solvent and oxygen levels. It shows promise for oxygen sensing and biological imaging applications.
Area of Science:
- Supramolecular Chemistry
- Photophysics
- Materials Science
Background:
- Ruthenium(II) polypyridyl complexes and BODIPY dyes are known for their photoluminescent properties.
- Dual-emission probes offer advantages for self-referencing and ratiometric sensing.
- Solvent-dependent emission is crucial for developing responsive materials.
Purpose of the Study:
- To synthesize and characterize a ruthenium(II) polypyridyl-BODIPY dyad.
- To investigate its solvent-switchable dual emission properties.
- To evaluate its potential as an oxygen probe and for bioimaging.
Main Methods:
- Synthesis of the ruthenium(II) polypyridyl-BODIPY dyad.
- Photoluminescence spectroscopy in various organic and aqueous media.
- Oxygen sensitivity measurements.
- Cellular and tissue imaging studies.
Main Results:
- The dyad exhibits dual emission in organic solvents, with oxygen-sensitive ruthenium emission and oxygen-independent BODIPY emission.
- In aqueous media, BODIPY emission is reversibly quenched, leaving only ruthenium-centered emission.
- The material demonstrates self-referenced oxygen sensing capabilities.
- Successful application in cell and tissue imaging was demonstrated.
Conclusions:
- The developed ruthenium-BODIPY dyad possesses unique solvent-switchable dual emission characteristics.
- This molecular system serves as an effective self-referenced oxygen probe.
- The dyad shows significant potential for advanced applications in biological imaging.
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