Rapid naked-eye detection of mercury ions based on non-crosslinking aggregation of double-stranded DNA-carrying gold nanoparticles

Chem Commun (Camb). 2011 Feb 21;47(7):2077-9. doi: 10.1039/c0cc05171c. Epub 2011 Jan 4.

Abstract

Colorimetric detection of mercury ions (Hg(2+)) with the naked eye was accomplished within 1 min by a combination of non-crosslinking aggregation of double-stranded DNA-carrying gold nanoparticles and complex formation of thymine-Hg(2+)-thymine.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Colorimetry / methods*
  • DNA / chemistry*
  • Environmental Pollutants / analysis
  • Gold / chemistry*
  • Ions / analysis
  • Mercury / analysis*
  • Nanoparticles / chemistry*
  • Sensitivity and Specificity
  • Thymine / chemistry*

Substances

  • Environmental Pollutants
  • Ions
  • Gold
  • DNA
  • Mercury
  • Thymine