Catalytic signal amplification using [Fe(III)(biuret-amide)]-mesoporous silica nanoparticles: visual cyanide detection

Chem Commun (Camb). 2013 Mar 18;49(22):2216-8. doi: 10.1039/c3cc38932d.

Abstract

Catalytic signal amplification was used for the colorimetric detection of CN(-) in aqueous media by using the enzyme catalase in tandem with mesoporous silica nanoparticle based synthetic HRP enzyme mimic Fe-MSNs. Signal amplification up to a maximum of eight fold was observed for the reporter "oxidized TMB" with respect to the added CN(-) ion.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amides / chemistry*
  • Biuret / chemistry*
  • Catalase / chemistry*
  • Catalase / metabolism
  • Catalysis
  • Colorimetry
  • Cyanides / analysis*
  • Ferric Compounds / chemistry*
  • Molecular Structure
  • Nanoparticles / chemistry*
  • Porosity
  • Silicon Dioxide / chemistry*
  • Surface Properties

Substances

  • Amides
  • Cyanides
  • Ferric Compounds
  • Silicon Dioxide
  • Biuret
  • Catalase