Supersensitive Detection of Explosives by Silicon Nanowire Arrays

被引：236

作者：

Engel, Yoni ^{[1
]}

Elnathan, Roey ^{[1
]}

Pevzner, Alexander ^{[1
]}

Davidi, Guy ^{[1
]}

Flaxer, Eli ^{[1
]}

Patolsky, Fernando ^{[1
]}

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Chem, IL-69978 Tel Aviv, Israel

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 38期

基金：

以色列科学基金会;

关键词：

explosives; field-effect transistors; Meisenheimer complexes; nanostructures sensors; ELECTRICAL DETECTION; SELECTIVE DETECTION; TNT; 2,4,6-TRINITROTOLUENE; SENSORS; AMINES; NANOPARTICLES; SPECTROMETRY; RECOGNITION; NANOSENSORS;

D O I：

10.1002/anie.201000847

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(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.© 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：6830 / 6835

页数：6

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