Photo-induced enhanced Raman spectroscopy for universal ultra-trace detection of explosives, pollutants and biomolecules

Simple item page
dc.contributor.authorBen-Jaber, Sultan
dc.contributor.authorPeveler, William J.
dc.contributor.authorQuesada-Cabrera, Raul
dc.contributor.authorCortés, Emiliano
dc.contributor.authorSotelo-Vazquez, Carlos
dc.contributor.authorAbdul-Karim, Nadia
dc.contributor.authorMaier, Stefan A.
dc.contributor.authorParkin, Ivan P.
dc.date.accessioned2018-04-26T18:38:18Z
dc.date.available2018-04-26T18:38:18Z
dc.date.issued2016-07-14
dc.description.abstractSurface-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.en_UK
dc.identifier.citationBen-Jaber S, Peveler WJ, Quesada-Cabrera R, et al., (2016) Photo-induced enhanced Raman spectroscopy for universal ultra-trace detection of explosives, pollutants and biomolecules. Nature Communications, Volume 7, 2016, Article number 12189en_UK
dc.identifier.issn2041-1723
dc.identifier.urihttp://doi.org/10.1038/ncomms12189
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/13173
dc.language.isoenen_UK
dc.publisherNature Publishing Groupen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectAnalytical chemistryen_UK
dc.subjectNanoparticlesen_UK
dc.subjectNanophotonics and plasmonicsen_UK
dc.subjectRaman spectroscopyen_UK
dc.titlePhoto-induced enhanced Raman spectroscopy for universal ultra-trace detection of explosives, pollutants and biomoleculesen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Photo-induced_enhanced_Raman_spectroscopy-2016.pdf
Size:
840.33 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (CDS)