Gold nanoparticles protected by fluorinated ligands for 19F MRI

Area of Science:

• Nanotechnology
• Biomedical Imaging
• Materials Science

Background:

• Fluorinated ligands can impart unique properties to nanoparticles.
• Magnetic Resonance Imaging (MRI) is a crucial diagnostic tool.
• Developing novel contrast agents for enhanced MRI is an ongoing research area.

Purpose of the Study:

• To evaluate fluorinated gold nanoparticles (F-MPCs) as potential agents for (19)F MRI.
• To investigate the cellular uptake and toxicity of fluorescently labeled F-MPCs.
• To explore the capability of F-MPCs to bind hydrophobic molecules for combined functionalities.

Main Methods:

• Phantom experiments were conducted to assess (19)F MRI suitability.
• HeLa cells were used to study cellular uptake and toxicity.
• Characterization of F-MPCs' binding affinity for hydrophobic molecules.

Main Results:

• F-MPCs demonstrated promising features for (19)F MRI.
• Fluorescent dye-decorated F-MPCs exhibited cellular uptake in HeLa cells with no observed toxicity.
• F-MPCs showed the ability to bind hydrophobic molecules.

Conclusions:

• F-MPCs are suitable for (19)F MRI applications.
• Fluorescently labeled F-MPCs are safe for cellular imaging and can be functionalized for hydrophobic molecule binding.
• These nanoparticles offer potential for combined targeting, drug delivery, and imaging.