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

doi:10.1002/adma.201102027

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

68 Citations (Scopus)

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.

Original language	English
Pages (from-to)	4649-4654
Number of pages	6
Journal	Advanced Materials
Volume	23
Issue number	40
DOIs	https://doi.org/10.1002/adma.201102027
Publication status	Published - 25 Oct 2011

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10.1002/adma.201102027

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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.",

author = "Wei Deng and Dayong Jin and Krystyna Drozdowicz-Tomsia and Jingli Yuan and Jing Wu and Goldys, {Ewa M.}",

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T2 - Time-gated Bioprobes with Single Particle Sensitivity and Negligible Background

AU - Deng, Wei

AU - Jin, Dayong

AU - Drozdowicz-Tomsia, Krystyna

AU - Yuan, Jingli

AU - Wu, Jing

AU - Goldys, Ewa M.

PY - 2011/10/25

Y1 - 2011/10/25

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AB - 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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DO - 10.1002/adma.201102027

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ER -

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

Abstract

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