Three dimensional nano-assemblies of noble metal nanoparticle–infinite coordination polymers as specific oxidase mimetics for degradation of methylene blue without adding any cosubstrate

Abstract

Novel three-dimensional (3D) nano-assemblies of noble metal nanoparticle (NP)–infinite coordination polymers (ICPs) are conveniently fabricated through the infiltration of HAuCl₄ into hollow Au@Ag@ICPs core–shell nanostructures and its replacement reaction with Au@Ag NPs. The present 3D nano-assemblies exhibit highly efficient and specific intrinsic oxidase-like activity even without adding any cosubstrate.