Plasmonic Ag/SiO2 composite nanoparticles doped with europium chelate and their metal enhanced fluorescence

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

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionResearchpeer-review

Abstract

We report silver nanostructure-enhanced fluorescence of a europium (Eu) chelate, BHHCT-Eu-DPBT, which was covalently bound in Ag/SiO2 nanocomposites. This design enhances the europium signal intensity by more than one order of magnitude, and accelerates the decay time from 0.3 ms down to 60 microseconds, at low excitation conditions. These nanocomposites were bright enough to be observed in time-gated fluorescence microscopy under 365 nm LED excitation. The increased brightness and reduced lifetime of such fluorescent core-shell nanocomposites will enhance their applicability for ultrasensitive bioassays and bioimaging, especially with time-gating.

LanguageEnglish
Title of host publicationColloidal Quantum Dots/Nanocrystals for Biomedical Applications VI
EditorsWolfgang J. Parak, Kenji Yamamoto, Marek Osinski
Place of PublicationBellingham, Washingto
PublisherSPIE
Pages1-11
Number of pages11
Volume7909
ISBN (Print)9780819484468
DOIs
Publication statusPublished - 2011
EventColloidal Quantum Dots/Nanocrystals for Biomedical Applications VI - San Francisco, CA, United States
Duration: 22 Jan 201124 Jan 2011

Other

OtherColloidal Quantum Dots/Nanocrystals for Biomedical Applications VI
CountryUnited States
CitySan Francisco, CA
Period22/01/1124/01/11

Fingerprint

Europium
Nanocomposites
europium
chelates
Nanoparticles
nanocomposites
Fluorescence
Metals
fluorescence
nanoparticles
composite materials
Composite materials
metals
bioassay
Nanostructures
Bioassay
Fluorescence microscopy
Fluorescence Microscopy
Silver
Biological Assay

Cite this

Deng, W., Jin, D., Drozdowicz-Tomsia, K., Yuan, J., Wu, J., & Goldys, E. M. (2011). Plasmonic Ag/SiO2 composite nanoparticles doped with europium chelate and their metal enhanced fluorescence. In W. J. Parak, K. Yamamoto, & M. Osinski (Eds.), Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI (Vol. 7909, pp. 1-11). [79090Z] Bellingham, Washingto: SPIE. https://doi.org/10.1117/12.872833
Deng, Wei ; Jin, Dayong ; Drozdowicz-Tomsia, Krystyna ; Yuan, Jingli ; Wu, Jing ; Goldys, Ewa M. / Plasmonic Ag/SiO2 composite nanoparticles doped with europium chelate and their metal enhanced fluorescence. Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI. editor / Wolfgang J. Parak ; Kenji Yamamoto ; Marek Osinski. Vol. 7909 Bellingham, Washingto : SPIE, 2011. pp. 1-11
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title = "Plasmonic Ag/SiO2 composite nanoparticles doped with europium chelate and their metal enhanced fluorescence",
abstract = "We report silver nanostructure-enhanced fluorescence of a europium (Eu) chelate, BHHCT-Eu-DPBT, which was covalently bound in Ag/SiO2 nanocomposites. This design enhances the europium signal intensity by more than one order of magnitude, and accelerates the decay time from 0.3 ms down to 60 microseconds, at low excitation conditions. These nanocomposites were bright enough to be observed in time-gated fluorescence microscopy under 365 nm LED excitation. The increased brightness and reduced lifetime of such fluorescent core-shell nanocomposites will enhance their applicability for ultrasensitive bioassays and bioimaging, especially with time-gating.",
author = "Wei Deng and Dayong Jin and Krystyna Drozdowicz-Tomsia and Jingli Yuan and Jing Wu and Goldys, {Ewa M.}",
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Deng, W, Jin, D, Drozdowicz-Tomsia, K, Yuan, J, Wu, J & Goldys, EM 2011, Plasmonic Ag/SiO2 composite nanoparticles doped with europium chelate and their metal enhanced fluorescence. in WJ Parak, K Yamamoto & M Osinski (eds), Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI. vol. 7909, 79090Z, SPIE, Bellingham, Washingto, pp. 1-11, Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI, San Francisco, CA, United States, 22/01/11. https://doi.org/10.1117/12.872833

Plasmonic Ag/SiO2 composite nanoparticles doped with europium chelate and their metal enhanced fluorescence. / Deng, Wei; Jin, Dayong; Drozdowicz-Tomsia, Krystyna; Yuan, Jingli; Wu, Jing; Goldys, Ewa M.

Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI. ed. / Wolfgang J. Parak; Kenji Yamamoto; Marek Osinski. Vol. 7909 Bellingham, Washingto : SPIE, 2011. p. 1-11 79090Z.

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionResearchpeer-review

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T1 - Plasmonic Ag/SiO2 composite nanoparticles doped with europium chelate and their metal enhanced fluorescence

AU - Deng, Wei

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AB - We report silver nanostructure-enhanced fluorescence of a europium (Eu) chelate, BHHCT-Eu-DPBT, which was covalently bound in Ag/SiO2 nanocomposites. This design enhances the europium signal intensity by more than one order of magnitude, and accelerates the decay time from 0.3 ms down to 60 microseconds, at low excitation conditions. These nanocomposites were bright enough to be observed in time-gated fluorescence microscopy under 365 nm LED excitation. The increased brightness and reduced lifetime of such fluorescent core-shell nanocomposites will enhance their applicability for ultrasensitive bioassays and bioimaging, especially with time-gating.

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Deng W, Jin D, Drozdowicz-Tomsia K, Yuan J, Wu J, Goldys EM. Plasmonic Ag/SiO2 composite nanoparticles doped with europium chelate and their metal enhanced fluorescence. In Parak WJ, Yamamoto K, Osinski M, editors, Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI. Vol. 7909. Bellingham, Washingto: SPIE. 2011. p. 1-11. 79090Z https://doi.org/10.1117/12.872833