Premium
Cover Picture: Supersensitive Detection of Explosives by Silicon Nanowire Arrays (Angew. Chem. Int. Ed. 38/2010)
Author(s) -
Engel Yoni,
Elnathan Roey,
Pevzner Alexander,
Davidi Guy,
Flaxer Eli,
Patolsky Fernando
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201004012
Subject(s) - monolayer , explosive material , cover (algebra) , nanowire , detection limit , silicon nanowires , silicon , materials science , nanotechnology , electron transfer , optoelectronics , chemistry , photochemistry , chromatography , organic chemistry , engineering , mechanical engineering
TNT and other explosives can be detected in air by using silicon nanowire arrays modified with electron‐rich aminosilane monolayers. As F. Patolsky and co‐workers report in their Communication on page 6830 ff., these devices, in which the electron‐deficient explosive molecules are bound to the monolayer through charge‐transfer interactions, offer rapid label‐free detection of explosives down to a detection limit of 0.1 femtomolar (1×10 −6 ppt). Artwork by Tremani.