An anionic Cd(ii) boron imidazolate framework with reversible structural transformation and biomolecular sensing...

Area of Science:

• Materials Science
• Nanotechnology
• Chemistry

Background:

• Metal-organic frameworks (MOFs) offer tunable structures for diverse applications.
• Boron-based organic ligands enable unique framework properties.
• Sensing of biologically relevant molecules is a key challenge in analytical chemistry.

Purpose of the Study:

• To synthesize a novel anionic boron imidazolate framework (BIF-82) with a specific topology (gra).
• To investigate the structural transformation properties of BIF-82.
• To explore the potential of BIF-82 encapsulated with silver nanoparticles (Ag NPs) for sensing cysteine.

Main Methods:

• Targeted assembly of Cadmium(II) ions, 1,3,5-benzenetricarboxylate ligand, and a tetradentate boron imidazolate ligand.
• Characterization of the synthesized framework.
• Encapsulation of silver nanoparticles within the framework.
• Evaluation of the framework's performance in cysteine sensing.

Main Results:

• Successful synthesis of an anionic Cd(ii) boron imidazolate framework (BIF-82) with gra topology.
• Demonstration of reversible structural transformation in BIF-82.
• Effective encapsulation of Ag NPs within the BIF-82 structure.
• Detection of cysteine using the Ag NPs-encapsulated BIF-82.

Conclusions:

• BIF-82 is a novel anionic boron imidazolate framework with a gra topology and reversible structural transformation.
• The Ag NPs-encapsulated BIF-82 demonstrates potential as a sensor for cysteine detection.