Bio-Inspired Nanostructured Sensor for the Detection of Ultralow Concentrations of Explosives

Authors

  • Dr. Denis Spitzer,

    1. NS3E-ISL-CNRS (Nanomatériaux pour les Systèmes Sous, Sollicitations Extrêmes) UMR 3208, French–German Research Institute of Saint-Louis, 5 rue du Général Cassagnou, B.P. 70034, 68301 St Louis Cedex (France)
    2. Postfach 1260, 79574 Weil am Rhein (Germany)
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  • Dr. Thomas Cottineau,

    1. LMSPC-CNRS-UDS (Laboratoire des Matériaux, Surfaces et Procédés pour la Catalyse) UMR 7515, 25 rue Becquerel, 67087 Strasbourg Cedex (France)
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  • Dr. Nelly Piazzon,

    1. NS3E-ISL-CNRS (Nanomatériaux pour les Systèmes Sous, Sollicitations Extrêmes) UMR 3208, French–German Research Institute of Saint-Louis, 5 rue du Général Cassagnou, B.P. 70034, 68301 St Louis Cedex (France)
    2. Postfach 1260, 79574 Weil am Rhein (Germany)
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  • Dr. Sébastien Josset,

    1. NS3E-ISL-CNRS (Nanomatériaux pour les Systèmes Sous, Sollicitations Extrêmes) UMR 3208, French–German Research Institute of Saint-Louis, 5 rue du Général Cassagnou, B.P. 70034, 68301 St Louis Cedex (France)
    2. Postfach 1260, 79574 Weil am Rhein (Germany)
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  • Fabien Schnell,

    1. NS3E-ISL-CNRS (Nanomatériaux pour les Systèmes Sous, Sollicitations Extrêmes) UMR 3208, French–German Research Institute of Saint-Louis, 5 rue du Général Cassagnou, B.P. 70034, 68301 St Louis Cedex (France)
    2. Postfach 1260, 79574 Weil am Rhein (Germany)
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  • Dr. Sergey Nikolayevich Pronkin,

    1. LMSPC-CNRS-UDS (Laboratoire des Matériaux, Surfaces et Procédés pour la Catalyse) UMR 7515, 25 rue Becquerel, 67087 Strasbourg Cedex (France)
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  • Prof. Elena Romanovna Savinova,

    1. LMSPC-CNRS-UDS (Laboratoire des Matériaux, Surfaces et Procédés pour la Catalyse) UMR 7515, 25 rue Becquerel, 67087 Strasbourg Cedex (France)
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  • Dr. Valérie Keller

    Corresponding author
    1. LMSPC-CNRS-UDS (Laboratoire des Matériaux, Surfaces et Procédés pour la Catalyse) UMR 7515, 25 rue Becquerel, 67087 Strasbourg Cedex (France)
    • LMSPC-CNRS-UDS (Laboratoire des Matériaux, Surfaces et Procédés pour la Catalyse) UMR 7515, 25 rue Becquerel, 67087 Strasbourg Cedex (France)
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  • This work was supported by DGA contract no. 2009.34.0024. We thank Dr. M. Rosenthal and Dr. D. A. Ivanov for the system combining nanocalorimeter with AFM, and C. Meny and M. Acosta for their help with the PVD.

Abstract

original image

TNT: Silicon microcantilevers modified with a three-dimensional layer of vertical titanium dioxide nanotubes (see picture) can be used in micromechanical sensors with optical signal detection to detect low levels of explosives such as 2,4,6-trinitrotoluene (TNT) in the gas phase, even in the presence of other volatile impurities such as n-heptane and ethanol.

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