Enhanced fluorescence emission of Me-ADOTA+ by self-assembled silver nanoparticles on a gold film

Thomas J. Sørensen; Bo W. Laursen; Rafal Luchowski; Tanya Shtoyko; Irina Akopova; Zygmunt Gryczynski; Ignacy Gryczynski

doi:10.1016/j.cplett.2009.05.064

Enhanced fluorescence emission of Me-ADOTA⁺ by self-assembled silver nanoparticles on a gold film

Thomas J. Sørensen, Bo W. Laursen, Rafal Luchowski, Tanya Shtoyko, Irina Akopova, Zygmunt Gryczynski, Ignacy Gryczynski

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Abstract

We report a multi-fold enhancement of the fluorescence of methyl-azadioxatriangulenium chloride (Me-ADOTA·Cl) in PVA deposited on a 50 nm thick gold mirror carrying an evaporation induced self-assembly of colloidal silver nanoparticles (Ag-SACs). The average measured increase in fluorescence emission of about 50-fold is accompanied by hot spots with a local enhancement in brightness close to 200. The long lifetime of the dye allows for the first direct determination of the correlation between the enhancement of emission intensity and the decrease in fluorescence lifetime. The Ag-SACs surface preparation and observed enhancements are highly reproducible. We believe that these robust plasmonic surfaces will find use in sensing platforms for ultrasensitive detection.

Original language	English
Pages (from-to)	46-50
Number of pages	5
Journal	Chemical Physics Letters
Volume	476
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2009.05.064
State	Published - 7 Jul 2009

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10.1016/j.cplett.2009.05.064

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title = "Enhanced fluorescence emission of Me-ADOTA+ by self-assembled silver nanoparticles on a gold film",

abstract = "We report a multi-fold enhancement of the fluorescence of methyl-azadioxatriangulenium chloride (Me-ADOTA·Cl) in PVA deposited on a 50 nm thick gold mirror carrying an evaporation induced self-assembly of colloidal silver nanoparticles (Ag-SACs). The average measured increase in fluorescence emission of about 50-fold is accompanied by hot spots with a local enhancement in brightness close to 200. The long lifetime of the dye allows for the first direct determination of the correlation between the enhancement of emission intensity and the decrease in fluorescence lifetime. The Ag-SACs surface preparation and observed enhancements are highly reproducible. We believe that these robust plasmonic surfaces will find use in sensing platforms for ultrasensitive detection.",

author = "S{\o}rensen, {Thomas J.} and Laursen, {Bo W.} and Rafal Luchowski and Tanya Shtoyko and Irina Akopova and Zygmunt Gryczynski and Ignacy Gryczynski",

note = "Funding Information: This work was in part supported by the Danish Natural Science Research Council, FNU, grant 272-06-0102 (BWL); by NIH grant R01 HG004364 and Texas ETF grant (CCFT) and by grant CCSA 7748 from the Research Corporation for Science Advancement (TS). Rafal Luchowski is the recipient of a researcher{\textquoteright}s mobility program from the Polish Ministry of Science and Higher Education.",

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doi = "10.1016/j.cplett.2009.05.064",

language = "English",

volume = "476",

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journal = "Chemical Physics Letters",

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T1 - Enhanced fluorescence emission of Me-ADOTA+ by self-assembled silver nanoparticles on a gold film

AU - Sørensen, Thomas J.

AU - Laursen, Bo W.

AU - Luchowski, Rafal

AU - Shtoyko, Tanya

AU - Akopova, Irina

AU - Gryczynski, Zygmunt

AU - Gryczynski, Ignacy

N1 - Funding Information: This work was in part supported by the Danish Natural Science Research Council, FNU, grant 272-06-0102 (BWL); by NIH grant R01 HG004364 and Texas ETF grant (CCFT) and by grant CCSA 7748 from the Research Corporation for Science Advancement (TS). Rafal Luchowski is the recipient of a researcher’s mobility program from the Polish Ministry of Science and Higher Education.

PY - 2009/7/7

Y1 - 2009/7/7

N2 - We report a multi-fold enhancement of the fluorescence of methyl-azadioxatriangulenium chloride (Me-ADOTA·Cl) in PVA deposited on a 50 nm thick gold mirror carrying an evaporation induced self-assembly of colloidal silver nanoparticles (Ag-SACs). The average measured increase in fluorescence emission of about 50-fold is accompanied by hot spots with a local enhancement in brightness close to 200. The long lifetime of the dye allows for the first direct determination of the correlation between the enhancement of emission intensity and the decrease in fluorescence lifetime. The Ag-SACs surface preparation and observed enhancements are highly reproducible. We believe that these robust plasmonic surfaces will find use in sensing platforms for ultrasensitive detection.

AB - We report a multi-fold enhancement of the fluorescence of methyl-azadioxatriangulenium chloride (Me-ADOTA·Cl) in PVA deposited on a 50 nm thick gold mirror carrying an evaporation induced self-assembly of colloidal silver nanoparticles (Ag-SACs). The average measured increase in fluorescence emission of about 50-fold is accompanied by hot spots with a local enhancement in brightness close to 200. The long lifetime of the dye allows for the first direct determination of the correlation between the enhancement of emission intensity and the decrease in fluorescence lifetime. The Ag-SACs surface preparation and observed enhancements are highly reproducible. We believe that these robust plasmonic surfaces will find use in sensing platforms for ultrasensitive detection.

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U2 - 10.1016/j.cplett.2009.05.064

DO - 10.1016/j.cplett.2009.05.064

M3 - Article

AN - SCOPUS:67649224137

SN - 0009-2614

VL - 476

SP - 46

EP - 50

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Enhanced fluorescence emission of Me-ADOTA⁺ by self-assembled silver nanoparticles on a gold film

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