Noble metal nanoparticles meet molecular cages: A tale of integration and synergy

作者：Wang, Chen^*; Sun, Fuwei; He, Guokang; Zhao, Hongwei; Tian, Li; Cheng, Yibo; Li, Guangtao^*

来源：CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2023, 63: 101660.

DOI：10.1016/j.cocis.2022.101660

• Polyhedra cages
• Noble metal nanoparticles
• Host-guest chemistry
• Plasmonic effect
• Function integration

Noble metal nanoparticles attract growing interest owing to their high surface-to-volume ratio and unique optical, electric and catalytic properties. Fine-tuning these properties and broadening potential applications can be envisaged if nano -particles are coupled to supramolecular cages that afford a highly tailorable inner environment as well as rich endo-/exo-functionalization. Due to rich chemical/physical properties of cages, integration of multiple host-guest interactions in confined cavities through endo-molecular design has been achieved. Such cages provide ideal confined templates for size-controlled synthesis of ultrafine nanoparticles with supe-rior catalytic activities. Moreover, exo-functionalization of cages offers huge opportunities to couple with nanoparticles, generating cage-nanoparticle hybrids or hierarchical assem-blies that combine merits of both. The present review provides recent advances in cage-mediated nanoparticle systems with synergistic effects and integrated functions, and demonstrates their applications in catalysis, sensing, chiral amplification, plasmonic switches, imaging and cell therapy. Finally, we highlight key challenges and identify emerging directions in the coming years.

• 单位
  清华大学; 华东理工大学