Rare-earth-pentacene-octacarboxylate frameworks for highly efficient urinary 1-HP fluorescence sensing

Area of Science:

• Materials Science
• Chemistry
• Nanotechnology

Background:

• Metal-organic frameworks (MOFs) are porous materials with diverse applications.
• Rare-earth MOFs offer unique luminescent properties.
• Developing selective sensors for environmental pollutants is crucial.

Purpose of the Study:

• To synthesize novel rare-earth metal-organic frameworks using a pentiptycene-octacarboxylic ligand.
• To investigate the potential of these MOFs for high-sensitivity fluorescence sensing.
• To evaluate the performance of the europium-based MOF for 1-hydroxypyrene detection.

Main Methods:

• Synthesis of rare-earth metal-organic frameworks.
• Characterization of the synthesized MOFs.
• Fluorescence spectroscopy for sensing 1-hydroxypyrene.

Main Results:

• Successful synthesis of rare-earth MOFs based on a pentiptycene-octacarboxylic ligand.
• The europium-containing MOF exhibited high sensitivity and selectivity for 1-hydroxypyrene.
• A rapid response time of 35 seconds was achieved.
• The sensor demonstrated remarkable resilience to common interferents.

Conclusions:

• The developed europium-based MOF is a promising material for sensitive and selective fluorescence detection of 1-hydroxypyrene.
• The pentiptycene-octacarboxylic ligand facilitates the creation of robust and high-performance MOFs.
• This work contributes to the advancement of chemical sensing technologies.