Extreme red shifted SERS nanotags

Matthew A. Bedics; Hayleigh Kearns; Jordan M. Cox; Sam Mabbott; Fatima Ali; Neil C. Shand; Karen Faulds; Jason B. Benedict; Duncan Graham; Michael R. Detty

doi:10.1039/C4SC03917C

Extreme red shifted SERS nanotags

Matthew A. Bedics, Hayleigh Kearns, Jordan M. Cox, Sam Mabbott, Fatima Ali, Neil C. Shand, Karen Faulds, Jason B. Benedict, Duncan Graham, Michael R. Detty

Pure And Applied Chemistry

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

42 Citations (Scopus)

155 Downloads (Pure)

Abstract

Surfaced enhanced Raman scattering (SERS) nanotags operating with 1280 nm excitation were constructed from reporter molecules selected from a library of 14 chalcogenopyrylium dyes containing phenyl, 2-thienyl, and 2-selenophenyl substituents and a surface of hollow gold nanoshells (HGNs). These 1280 SERS nanotags are unique as they have multiple chalcogen atoms available which allow them to adsorb strongly onto the gold surface of the HGN thus producing exceptional SERS signals at this long excitation wavelength. Picomolar limits of detection (LOD) were observed and individual reporters of the library were identified by principal component analysis and classified according to their unique structure and SERS spectra.

Original language	English
Pages (from-to)	2302-2306
Number of pages	5
Journal	Chemical Science
Volume	6
Issue number	4
Early online date	21 Jan 2015
DOIs	https://doi.org/10.1039/C4SC03917C
Publication status	Published - 1 Apr 2015

Keywords

SERS nanotags
hollow gold nanoshells
limits of detection

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10.1039/C4SC03917CLicence: CC BY 4.0

Bedics-etal-CS-2015-Extreme-red-shifted-SERS-nanotagsFinal published version, 429 KBLicence: CC BY 4.0

Cite this

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title = "Extreme red shifted SERS nanotags",

abstract = "Surfaced enhanced Raman scattering (SERS) nanotags operating with 1280 nm excitation were constructed from reporter molecules selected from a library of 14 chalcogenopyrylium dyes containing phenyl, 2-thienyl, and 2-selenophenyl substituents and a surface of hollow gold nanoshells (HGNs). These 1280 SERS nanotags are unique as they have multiple chalcogen atoms available which allow them to adsorb strongly onto the gold surface of the HGN thus producing exceptional SERS signals at this long excitation wavelength. Picomolar limits of detection (LOD) were observed and individual reporters of the library were identified by principal component analysis and classified according to their unique structure and SERS spectra.",

keywords = "SERS nanotags, hollow gold nanoshells, limits of detection",

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AU - Bedics, Matthew A.

AU - Kearns, Hayleigh

AU - Cox, Jordan M.

AU - Mabbott, Sam

AU - Ali, Fatima

AU - Shand, Neil C.

AU - Faulds, Karen

AU - Benedict, Jason B.

AU - Graham, Duncan

AU - Detty, Michael R.

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Extreme red shifted SERS nanotags

Abstract

Keywords

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Karen Faulds

EPSRC DOCTORAL TRAINING GRANT | May, Hayleigh

Wolfson Merit Award: Responsive Nanoparticles for Multi-Modal Imaging

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Extreme red shifted SERS nanotags

Abstract

Keywords

Access to Document

Other files and links

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Profiles

Karen Faulds

Projects

EPSRC DOCTORAL TRAINING GRANT | May, Hayleigh

Wolfson Merit Award: Responsive Nanoparticles for Multi-Modal Imaging

Cite this