Ultrabright Eu-Doped Plasmonic Ag@SiO2 Nanostructures: Time-gated Bioprobes with Single Particle Sensitivity and Negligible Background

Wei Deng, Dayong Jin, Krystyna Drozdowicz-Tomsia, Jingli Yuan, Jing Wu, Ewa M. Goldys

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Eu chelate-doped plasmonic silver-core-silica-shell nanocomposites show greatly increased fluorescence enhancement factors of up to 145 at high excitation intensities, due to significantly increased radiative rates in samples with metal cores. They offer exceptionally high signal intensity, sufficient for single particle detection and compatibility with time-gated imaging offering nearly background-free conditions. A bioassay application is also presented.

LanguageEnglish
Pages4649-4654
Number of pages6
JournalAdvanced Materials
Volume23
Issue number40
DOIs
Publication statusPublished - 25 Oct 2011

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Bioassay
Silver
Silicon Dioxide
Nanostructures
Nanocomposites
Metals
Fluorescence
Silica
Imaging techniques

Cite this

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abstract = "Eu chelate-doped plasmonic silver-core-silica-shell nanocomposites show greatly increased fluorescence enhancement factors of up to 145 at high excitation intensities, due to significantly increased radiative rates in samples with metal cores. They offer exceptionally high signal intensity, sufficient for single particle detection and compatibility with time-gated imaging offering nearly background-free conditions. A bioassay application is also presented.",
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Ultrabright Eu-Doped Plasmonic Ag@SiO2 Nanostructures : Time-gated Bioprobes with Single Particle Sensitivity and Negligible Background. / Deng, Wei; Jin, Dayong; Drozdowicz-Tomsia, Krystyna; Yuan, Jingli; Wu, Jing; Goldys, Ewa M.

In: Advanced Materials, Vol. 23, No. 40, 25.10.2011, p. 4649-4654.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Jin, Dayong

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