Highly selective and sensitive colorimetric probes for Yb3+ ions based on supramolecular aggregates assembled from beta-cyclodextrin-4,4'-dipyridine inclusion complex modified silver nanoparticles

Chem Commun (Camb). 2009 Jun 28:(24):3545-7. doi: 10.1039/b904787e. Epub 2009 May 7.

Abstract

Novel beta-cyclodextrin-4,4'-dipyridine supramolecular inclusion complex-modified silver nanoparticles were synthesized for the colorimetric determination of Yb(3+) ions in aqueous solution with high sensitivity (the visual detection limit was 2 x 10(-7) M), via Yb(3+)-induced aggregation to form chain-like supramolecular aggregates.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 2,2'-Dipyridyl / chemistry*
  • Cations / chemistry
  • Colorimetry
  • Metal Nanoparticles / chemistry*
  • Metal Nanoparticles / ultrastructure
  • Microscopy, Electron, Transmission
  • Molecular Probes / chemical synthesis*
  • Molecular Probes / chemistry
  • Molecular Structure
  • Silver / chemistry*
  • Spectrophotometry
  • Ytterbium / chemistry*
  • beta-Cyclodextrins / chemistry*

Substances

  • Cations
  • Molecular Probes
  • beta-Cyclodextrins
  • Silver
  • 2,2'-Dipyridyl
  • Ytterbium