Surface-enhanced fluorescence from metal sculptured thin films with application to biosensing in water

I. Abdulhalim; Alina Karabchevsky; Christian Patzig; Bernd Rauschenbach; Bodo Fuhrmann; Evgeni Eltzov; Robert Marks; Jian Xu; Fan Zhang; Akhlesh Lakhtakia

doi:10.1063/1.3081031

Surface-enhanced fluorescence from metal sculptured thin films with application to biosensing in water

I. Abdulhalim, Alina Karabchevsky, Christian Patzig, Bernd Rauschenbach, Bodo Fuhrmann, Evgeni Eltzov, Robert Marks, Jian Xu, Fan Zhang, Akhlesh Lakhtakia

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

71 Scopus citations

Abstract

Surface-enhanced fluorescence from porous, metallic sculptured thin films (STFs) was demonstrated for sensing of bacteria in water. Enhancement factors larger than 15 were observed using STFs made of silver, aluminum, gold, and copper with respect to their dense film counterparts. The STFs used are assemblies of tilted, shaped, parallel nanowires prepared with several variants of the oblique-angle-deposition technique. Comparison between the different films indicates that the enhancement factor is higher when the tilt is either small (<30 deg) or large (>80 deg); thus, the enhancement is higher when only a single resonance in the nanowires is excited.

Original language	English (US)
Article number	063106
Journal	Applied Physics Letters
Volume	94
Issue number	6
DOIs	https://doi.org/10.1063/1.3081031
State	Published - 2009

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.3081031

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title = "Surface-enhanced fluorescence from metal sculptured thin films with application to biosensing in water",

abstract = "Surface-enhanced fluorescence from porous, metallic sculptured thin films (STFs) was demonstrated for sensing of bacteria in water. Enhancement factors larger than 15 were observed using STFs made of silver, aluminum, gold, and copper with respect to their dense film counterparts. The STFs used are assemblies of tilted, shaped, parallel nanowires prepared with several variants of the oblique-angle-deposition technique. Comparison between the different films indicates that the enhancement factor is higher when the tilt is either small (<30 deg) or large (>80 deg); thus, the enhancement is higher when only a single resonance in the nanowires is excited.",

author = "I. Abdulhalim and Alina Karabchevsky and Christian Patzig and Bernd Rauschenbach and Bodo Fuhrmann and Evgeni Eltzov and Robert Marks and Jian Xu and Fan Zhang and Akhlesh Lakhtakia",

note = "Funding Information: This work was supported by the Israel Ministry of Sciences under the “Tashtiot” program, by the DFG within project P3 of the research group 522 “Architecture of nano- and microdimensional structure elements,” and by the Charles Godfrey Binder Endowment at Penn State.",

year = "2009",

doi = "10.1063/1.3081031",

language = "English (US)",

volume = "94",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Surface-enhanced fluorescence from metal sculptured thin films with application to biosensing in water

AU - Abdulhalim, I.

AU - Karabchevsky, Alina

AU - Patzig, Christian

AU - Rauschenbach, Bernd

AU - Fuhrmann, Bodo

AU - Eltzov, Evgeni

AU - Marks, Robert

AU - Xu, Jian

AU - Zhang, Fan

AU - Lakhtakia, Akhlesh

N1 - Funding Information: This work was supported by the Israel Ministry of Sciences under the “Tashtiot” program, by the DFG within project P3 of the research group 522 “Architecture of nano- and microdimensional structure elements,” and by the Charles Godfrey Binder Endowment at Penn State.

PY - 2009

Y1 - 2009

N2 - Surface-enhanced fluorescence from porous, metallic sculptured thin films (STFs) was demonstrated for sensing of bacteria in water. Enhancement factors larger than 15 were observed using STFs made of silver, aluminum, gold, and copper with respect to their dense film counterparts. The STFs used are assemblies of tilted, shaped, parallel nanowires prepared with several variants of the oblique-angle-deposition technique. Comparison between the different films indicates that the enhancement factor is higher when the tilt is either small (<30 deg) or large (>80 deg); thus, the enhancement is higher when only a single resonance in the nanowires is excited.

AB - Surface-enhanced fluorescence from porous, metallic sculptured thin films (STFs) was demonstrated for sensing of bacteria in water. Enhancement factors larger than 15 were observed using STFs made of silver, aluminum, gold, and copper with respect to their dense film counterparts. The STFs used are assemblies of tilted, shaped, parallel nanowires prepared with several variants of the oblique-angle-deposition technique. Comparison between the different films indicates that the enhancement factor is higher when the tilt is either small (<30 deg) or large (>80 deg); thus, the enhancement is higher when only a single resonance in the nanowires is excited.

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JF - Applied Physics Letters

IS - 6

M1 - 063106

ER -

Surface-enhanced fluorescence from metal sculptured thin films with application to biosensing in water

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