An Au bipyramids@CuZn MOF core-shell nanozyme enables universal SERS and a colorimetric dual-model bioassay

Chem Commun (Camb). 2024 Jun 6;60(47):6019-6022. doi: 10.1039/d4cc01602e.

Abstract

In this study, a new type of gold nano-bipyramids@CuZn bimetallic organic framework (AuNBPs@CuZn MOF) nanozyme with high peroxidase (POD)-like activity and surface enhanced Raman scattering (SERS) activity was constructed with a special core-shell structure, which can catalyze the oxidation of TMB (colourless and Raman-inactive) into ox-TMB (blue and Raman-active). An AuNBPs@CuZn MOF-enabling universal SERS and colorimetric dual-model bioassay was thus developed for biomolecules with excellent performance, and has promising application prospects in the biosensing fields.

MeSH terms

  • Benzidines / chemistry
  • Biological Assay
  • Colorimetry* / methods
  • Copper* / chemistry
  • Gold* / chemistry
  • Metal Nanoparticles / chemistry
  • Metal-Organic Frameworks* / chemistry
  • Oxidation-Reduction
  • Spectrum Analysis, Raman* / methods
  • Surface Properties

Substances

  • Gold
  • Metal-Organic Frameworks
  • Copper
  • Benzidines
  • 3,3',5,5'-tetramethylbenzidine