Nanoparticles functionalised with reversible molecular and supramolecular switches

Area of Science:

• Materials Science
• Organic Chemistry
• Supramolecular Chemistry
• Nanotechnology

Background:

• Nanoparticles (NPs) and molecular/supramolecular switches are key components in modern chemistry and materials science.
• Combining NPs with molecular switches offers novel material properties and functionalities.
• Emerging research focuses on NP functionalization with self-assembled monolayers of these switches.

Purpose of the Study:

• To critically review materials combining NPs with molecular/supramolecular switches.
• To highlight the impact of switch immobilization on NP properties and switching ability.
• To explore applications of surface-bound switches in modulating NP characteristics and controlled release.

Main Methods:

• Review of literature on NPs functionalized with self-assembled monolayers of molecular and supramolecular switches.
• Analysis of how immobilized switches retain their functionality.
• Discussion of systems where surface switching modulates NP properties and directs NP self-assembly.

Main Results:

• Immobilization of molecular switches on NPs generally preserves their switching capabilities.
• Surface-bound switches can impart new, tunable properties to the host nanoparticles.
• Switching on NP surfaces allows reversible control over optical, fluorescent, electrical, and magnetic properties, and enables controlled release.

Conclusions:

• Materials integrating NPs and molecular switches offer versatile platforms for advanced applications.
• Surface-based switching provides a powerful strategy for dynamic control over nanoparticle behavior.
• Molecular switches can direct the reversible self-assembly of nanoparticles, opening new avenues in materials design.