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@article{Ben-Jaber:2016:10.1038/ncomms12189,
author = {Ben-Jaber, S and Peveler, WJ and Quesada-Cabrera, R and Cortés, E and Sotela-Vasquez, C and Abdul-Karim, N and Maier, SA and Parkin, IP},
doi = {10.1038/ncomms12189},
journal = {Nature Communications},
title = {Photo-induced enhanced Raman spectroscopy for universal ultra-trace detection of explosives, pollutants and biomolecules},
url = {http://dx.doi.org/10.1038/ncomms12189},
volume = {7},
year = {2016}
}

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TY  - JOUR
AB  - Surface-enhanced Raman spectroscopy is one of the most sensitive spectroscopic techniques available, with single-molecule detection possible on a range of noble-metal substrates. It is widely used to detect molecules that have a strong Raman response at very low concentrations. Here we present photo-induced-enhanced Raman spectroscopy, where the combination of plasmonic nanoparticles with a photo-activated substrate gives rise to large signal enhancement (an order of magnitude) for a wide range of small molecules, even those with a typically low Raman cross-section. We show that the induced chemical enhancement is due to increased electron density at the noble-metal nanoparticles, and demonstrate the universality of this system with explosives, biomolecules and organic dyes, at trace levels. Our substrates are also easy to fabricate, self-cleaning and reusable.
AU  - Ben-Jaber,S
AU  - Peveler,WJ
AU  - Quesada-Cabrera,R
AU  - Cortés,E
AU  - Sotela-Vasquez,C
AU  - Abdul-Karim,N
AU  - Maier,SA
AU  - Parkin,IP
DO  - 10.1038/ncomms12189
PY  - 2016///
SN  - 2041-1723
TI  - Photo-induced enhanced Raman spectroscopy for universal ultra-trace detection of explosives, pollutants and biomolecules
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/ncomms12189
UR  - http://hdl.handle.net/10044/1/33681
VL  - 7
ER  -

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