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Publication Detail

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

Authors: Ma, Zhi Ya; Dosev, Dosi; Kennedy, Ian M

Published In Nanotechnology, (2009 Feb 25)

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.

PubMed ID: 19417456 Exiting the NIEHS site

MeSH Terms: Crystallization/methods*; Emulsions/chemistry; Europium/chemistry*; Luminescent Measurements/methods*; Macromolecular Substances/chemistry; Materials Testing; Molecular Conformation; Nanostructures/chemistry*; Nanostructures/ultrastructure*; Nanotechnology/methods; Particle Size; Silicon Dioxide/chemistry*; Silver/chemistry*; Surface Properties

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