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

Zhi Ya Ma; Dosi Dosev; Ian M. Kennedy

doi:10.1088/0957-4484/20/8/085608

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

Zhi Ya Ma, Dosi Dosev, Ian M. Kennedy

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article

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 language	English (US)
Article number	085608
Journal	Nanotechnology
Volume	20
Issue number	8
DOIs	https://doi.org/10.1088/0957-4484/20/8/085608
State	Published - 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

Ma, Z. Y., Dosev, D., & Kennedy, I. M. (2009). A microemulsion preparation of nanoparticles of europium in silica with luminescence enhancement using silver. Nanotechnology, 20(8), [085608]. https://doi.org/10.1088/0957-4484/20/8/085608

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 journal › Article

Ma, ZY, Dosev, D & Kennedy, IM 2009, 'A microemulsion preparation of nanoparticles of europium in silica with luminescence enhancement using silver', Nanotechnology, vol. 20, no. 8, 085608. https://doi.org/10.1088/0957-4484/20/8/085608

Ma ZY, Dosev D, Kennedy IM. A microemulsion preparation of nanoparticles of europium in silica with luminescence enhancement using silver. Nanotechnology. 2009;20(8). 085608. https://doi.org/10.1088/0957-4484/20/8/085608

Ma, Zhi Ya ; Dosev, Dosi ; Kennedy, Ian M. / A microemulsion preparation of nanoparticles of europium in silica with luminescence enhancement using silver. In: Nanotechnology. 2009 ; Vol. 20, No. 8.

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10.1088/0957-4484/20/8/085608