Supersensitive fingerprinting of explosives by chemically modified nanosensors arrays

The capability to detect traces of explosives sensitively, selectively and rapidly could be of great benefit for applications relating to civilian national security and military needs. Here, we show that, when chemically modified in a multiplexed mode, nanoelectrical devices arrays enable the supers...

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Bibliographic Details
Published in:	Nature communications Vol. 5; no. 1; p. 4195
Main Authors:	Lichtenstein, Amir, Havivi, Ehud, Shacham, Ronen, Hahamy, Ehud, Leibovich, Ronit, Pevzner, Alexander, Krivitsky, Vadim, Davivi, Guy, Presman, Igor, Elnathan, Roey, Engel, Yoni, Flaxer, Eli, Patolsky, Fernando
Format:	Journal Article
Language:	English
Published:	London Nature Publishing Group UK 24-06-2014 Nature Publishing Group
Subjects:	142/126 639/301/1034 639/638/11 639/925/927/356 Arrays Explosives Humanities and Social Sciences Ligands multidisciplinary Nanotechnology Nanowires National security Science Science (multidisciplinary) Sensors Transistors Tel Aviv Israel Israel
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Summary:	The capability to detect traces of explosives sensitively, selectively and rapidly could be of great benefit for applications relating to civilian national security and military needs. Here, we show that, when chemically modified in a multiplexed mode, nanoelectrical devices arrays enable the supersensitive discriminative detection of explosive species. The fingerprinting of explosives is achieved by pattern recognizing the inherent kinetics, and thermodynamics, of interaction between the chemically modified nanosensors array and the molecular analytes under test. This platform allows for the rapid detection of explosives, from air collected samples, down to the parts-per-quadrillion concentration range, and represents the first nanotechnology-inspired demonstration on the selective supersensitive detection of explosives, including the nitro- and peroxide-derivatives, on a single electronic platform. Furthermore, the ultrahigh sensitivity displayed by our platform may allow the remote detection of various explosives, a task unachieved by existing detection technologies. Reliable detection and identification of explosives is difficult due to the large numbers of compounds and the trace amount of material with which to work. Here, the authors show a nanosensor array capable of fingerprinting individual explosives and detecting them down to the parts-per-quadrillion concentration range.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2041-1723 2041-1723
DOI:	10.1038/ncomms5195