Photoactivated luminescent CdSe quantum dots as sensitive cyanide probes in aqueous solutions

Chem Commun (Camb). 2005 Feb 21:(7):883-5. doi: 10.1039/b414858d. Epub 2005 Jan 4.

Abstract

Water-soluble luminescent CdSe quantum dots surface-modified with 2-mercaptoethane sulfonate were synthesized for the selective determination of free cyanide in aqueous solution with high sensitivity (detection limit of 1.1 x 10(-6) M), via analyte-induced changes in their photoluminescence after photoactivation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cadmium Compounds / chemical synthesis
  • Cadmium Compounds / chemistry*
  • Cyanides / chemistry*
  • Luminescent Measurements / methods*
  • Mesna / chemistry*
  • Particle Size
  • Photochemistry
  • Quantum Dots*
  • Selenium Compounds / chemical synthesis
  • Selenium Compounds / chemistry*
  • Sensitivity and Specificity
  • Solutions / chemistry
  • Surface Properties
  • Water / chemistry

Substances

  • Cadmium Compounds
  • Cyanides
  • Selenium Compounds
  • Solutions
  • Water
  • cadmium selenide
  • Mesna