A microemulsion preparation of nanoparticles of europium in silica with luminescence enhancement using silver

Zhi Ya Ma, Dosi Dosev, Ian M. Kennedy

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A facile one-pot microemulsion method has been developed for the synthesis of spherical silver core-silica shell (Ag@SiO2) nanoparticles with europium chelates doped in the shell through a silane agent. The method is significantly more straightforward than other extant methods. Measurements of the luminescent emissions from the Ag@SiO2 nanoparticles, in comparison with control silica nanoparticles without silver cores, showed that the presence of the silver cores can increase the fluorescence intensity approximately 24-fold and decrease the luminescence lifetime. This enhancement offers a potential increase in overall particle detectability with increased fluorophore photostability.

Original languageEnglish (US)
Article number085608
JournalNanotechnology
Volume20
Issue number8
DOIs
StatePublished - 2009

Fingerprint

Europium
Microemulsions
Silver
Silicon Dioxide
Luminescence
Silica
Nanoparticles
Silanes
Fluorophores
Fluorescence

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

A microemulsion preparation of nanoparticles of europium in silica with luminescence enhancement using silver. / Ma, Zhi Ya; Dosev, Dosi; Kennedy, Ian M.

In: Nanotechnology, Vol. 20, No. 8, 085608, 2009.

Research output: Contribution to journalArticle

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