Bay functionalized perylenediimide as a deaggregation based intracellular fluorescent probe for perchlorate

Area of Science:

• Supramolecular Chemistry
• Analytical Chemistry
• Materials Science

Background:

• Perylenediimide (PDI) derivatives are known for their photophysical properties.
• Development of selective chemosensors for anion detection remains a challenge.
• Anion detection is crucial for environmental monitoring and biological imaging.

Purpose of the Study:

• To develop a perylenediimide-based chemosensor (PDI 1) for selective perchlorate ion detection.
• To investigate the sensing mechanism of PDI 1 in both solution and solid phases.
• To explore the application of PDI 1 in real-world samples and biological systems.

Main Methods:

• Synthesis and characterization of the perylenediimide-based chemosensor (PDI 1).
• Spectroscopic studies (fluorescence, UV-Vis) to analyze the interaction with perchlorate ions.
• De-aggregation induced fluorescence quenching mechanism investigation.
• Cell permeability studies using C6 glioma cells and confocal microscopy.

Main Results:

• PDI 1 exhibits selective fluorescence quenching in the presence of perchlorate ions (ClO4-) due to de-aggregation.
• The sensing mechanism is effective in both solution and solid-state.
• PDI 1 successfully detects perchlorate ions in drinking water and fireworks.
• PDI 1 demonstrates cell permeability and allows for intracellular perchlorate detection via confocal microscopy.

Conclusions:

• PDI 1 serves as an efficient and selective chemosensor for perchlorate ions.
• The developed sensor has practical applications in environmental analysis and bioimaging.
• De-aggregation induced fluorescence quenching is a viable mechanism for anion sensing.