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Issue 23, 2012
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SERS substrate for detection of explosives

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A novel gold coated femtosecond laser nanostructured sapphire surface – an “optical nose” – based on surface-enhanced Raman spectroscopy (SERS) for detecting vapours of explosive substances was investigated. Four different nitroaromatic vapours at room temperature were tested. Sensor responses were unambiguous and showed response in the range of 0.05–15 μM at 25 °C. The laser fabricated substrate nanostructures produced up to an eight-fold increase in Raman signal over that observed on the unstructured portions of the substrate. This work demonstrates a simple sensing system that is compatible with commercial manufacturing practices to detect taggants in explosives which can undertake as part of an integrated security or investigative mission.

Graphical abstract: SERS substrate for detection of explosives

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Publication details

The article was received on 22 Aug 2012, accepted on 07 Oct 2012 and first published on 11 Oct 2012

Article type: Paper
DOI: 10.1039/C2NR32409A
Citation: Nanoscale, 2012,4, 7419-7424
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    SERS substrate for detection of explosives

    A. Chou, E. Jaatinen, R. Buividas, G. Seniutinas, S. Juodkazis, E. L. Izake and P. M. Fredericks, Nanoscale, 2012, 4, 7419
    DOI: 10.1039/C2NR32409A

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