Sensitive SERS nanotags for use with a hand-held 1064 nm Raman spectrometer

Hayleigh Kearns; Fatima Ali; Matthew A. Bedics; Neil C. Shand; Karen Faulds; Michael R. Detty; Duncan Graham

doi:10.1098/rsos.170422

Sensitive SERS nanotags for use with a hand-held 1064 nm Raman spectrometer

Hayleigh Kearns, Fatima Ali, Matthew A. Bedics, Neil C. Shand, Karen Faulds, Michael R. Detty, Duncan Graham

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Abstract

This is the first report of the use of a hand-held 1064 nm Raman spectrometer combined with red shifted surface enhanced Raman scattering (SERS) nanotags to provide an unprecedented performance in the short-wave infrared (SWIR) region. A library consisting of 17 chalcogenopyrylium nanotags produce extraordinary SERS responses with femtomolar detection limits being obtained using the portable instrument. This is well beyond previous SERS detection limits at this far red shifted wavelength and opens up new options for SERS sensors in the SWIR region of the electromagnetic spectrum (between 950-1700 nm).

Original language	English
Article number	170422
Number of pages	14
Journal	Royal Society Open Science
Volume	4
Issue number	7
DOIs	https://doi.org/10.1098/rsos.170422
Publication status	Published - 19 Jul 2017

Keywords

hand-held Raman spectrometer
SWIR excitation
SERS nanotags
limits of detection
hollow gold nanoshells
chalcogenopyrylium dyes

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10.1098/rsos.170422

Kearns-etal-RSOS2017-Sensitive-SERS-nanotags-for-use-with-a-hand-held-1064-nmAccepted author manuscript, 706 KBLicence: CC BY 4.0

Cite this

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title = "Sensitive SERS nanotags for use with a hand-held 1064 nm Raman spectrometer",

abstract = "This is the first report of the use of a hand-held 1064 nm Raman spectrometer combined with red shifted surface enhanced Raman scattering (SERS) nanotags to provide an unprecedented performance in the short-wave infrared (SWIR) region. A library consisting of 17 chalcogenopyrylium nanotags produce extraordinary SERS responses with femtomolar detection limits being obtained using the portable instrument. This is well beyond previous SERS detection limits at this far red shifted wavelength and opens up new options for SERS sensors in the SWIR region of the electromagnetic spectrum (between 950-1700 nm).",

keywords = "hand-held Raman spectrometer, SWIR excitation, SERS nanotags, limits of detection, hollow gold nanoshells, chalcogenopyrylium dyes",

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journal = "Royal Society Open Science",

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AU - Kearns, Hayleigh

AU - Ali, Fatima

AU - Bedics, Matthew A.

AU - Shand, Neil C.

AU - Faulds, Karen

AU - Detty, Michael R.

AU - Graham, Duncan

PY - 2017/7/19

Y1 - 2017/7/19

N2 - This is the first report of the use of a hand-held 1064 nm Raman spectrometer combined with red shifted surface enhanced Raman scattering (SERS) nanotags to provide an unprecedented performance in the short-wave infrared (SWIR) region. A library consisting of 17 chalcogenopyrylium nanotags produce extraordinary SERS responses with femtomolar detection limits being obtained using the portable instrument. This is well beyond previous SERS detection limits at this far red shifted wavelength and opens up new options for SERS sensors in the SWIR region of the electromagnetic spectrum (between 950-1700 nm).

AB - This is the first report of the use of a hand-held 1064 nm Raman spectrometer combined with red shifted surface enhanced Raman scattering (SERS) nanotags to provide an unprecedented performance in the short-wave infrared (SWIR) region. A library consisting of 17 chalcogenopyrylium nanotags produce extraordinary SERS responses with femtomolar detection limits being obtained using the portable instrument. This is well beyond previous SERS detection limits at this far red shifted wavelength and opens up new options for SERS sensors in the SWIR region of the electromagnetic spectrum (between 950-1700 nm).

KW - hand-held Raman spectrometer

KW - SWIR excitation

KW - SERS nanotags

KW - limits of detection

KW - hollow gold nanoshells

KW - chalcogenopyrylium dyes

UR - http://rsos.royalsocietypublishing.org/

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DO - 10.1098/rsos.170422

M3 - Article

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JO - Royal Society Open Science

JF - Royal Society Open Science

SN - 2054-5703

IS - 7

M1 - 170422

ER -

Sensitive SERS nanotags for use with a hand-held 1064 nm Raman spectrometer

Abstract

Keywords

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DSTL- Coded Nanoparticles Using Infrared Raman Scattering (KP)

EPSRC DOCTORAL TRAINING GRANT | May, Hayleigh