Supersensitive detection of explosives by silicon nanowire arrays

Yoni Engel; Roey Elnathan; Alexander Pevzner; Guy Davidi; Eli Flaxer; Fernando Patolsky

doi:10.1002/anie.201000847

Supersensitive detection of explosives by silicon nanowire arrays

Yoni Engel, Roey Elnathan, Alexander Pevzner, Guy Davidi, Eli Flaxer, Fernando Patolsky

Research output: Contribution to journal › Article › peer-review

258 Scopus citations

Abstract

(Figure Presented) Dog on a chip: Explosives can be detected with unprecedented sensitivity by using arrays of silicon nanowire field-effect transistors modified with an electron-rich aminosilane monolayer, which form complexes with the analytes (see picture). These "nanosniffers" can be used to sense the presence of TNT at concentrations as low as 1 × 10 ^-6 ppt, which is superior to that of sniffer dogs or any other known explosive detection method.

Original language	English
Pages (from-to)	6830-6835
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	49
Issue number	38
DOIs	https://doi.org/10.1002/anie.201000847
State	Published - 10 Sep 2010
Externally published	Yes

Keywords

Explosives
Field-effect transistors
Meisenheimer complexes
Nanostructures
Sensors

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1002/anie.201000847

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AU - Engel, Yoni

AU - Elnathan, Roey

AU - Pevzner, Alexander

AU - Davidi, Guy

AU - Flaxer, Eli

AU - Patolsky, Fernando

PY - 2010/9/10

Y1 - 2010/9/10

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AB - (Figure Presented) Dog on a chip: Explosives can be detected with unprecedented sensitivity by using arrays of silicon nanowire field-effect transistors modified with an electron-rich aminosilane monolayer, which form complexes with the analytes (see picture). These "nanosniffers" can be used to sense the presence of TNT at concentrations as low as 1 × 10 -6 ppt, which is superior to that of sniffer dogs or any other known explosive detection method.

KW - Explosives

KW - Field-effect transistors

KW - Meisenheimer complexes

KW - Nanostructures

KW - Sensors

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Supersensitive detection of explosives by silicon nanowire arrays

Abstract

Keywords

ASJC Scopus subject areas

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