Metallic-Nanoparticle-Based Sensing: Utilization of Mixed-Ligand Monolayers

Area of Science:

• Nanotechnology
• Materials Science
• Analytical Chemistry

Background:

• Metallic nanoparticles stabilized by mixed-ligand monolayers have advanced significantly.
• Mixed-ligand protection offers advantages over monoligand protection in catalysis, imaging, and drug delivery.

Purpose of the Study:

• To review the application of mixed-ligand monolayer protected nanoparticles in sensing.
• To categorize mixed-ligand nanoparticle-based sensors into functional groups.

Main Methods:

• Literature review of mixed-ligand nanoparticle applications in sensing.
• Classification of sensors based on ligand organization and function.

Main Results:

• Mixed-ligand nanoparticle sensors are categorized into four groups: cooperative ligands, multi-analyte sensing, recognition-signal combined ligands, and sensitive-stabilizing ligand combinations.
• Each category demonstrates unique strategies for enhancing sensor capabilities.

Conclusions:

• Mixed-ligand nanoparticles represent a promising platform for advanced sensor development.
• Future research should address challenges and explore new directions in this field.