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Keywords:

  • analytical methods;
  • explosive detection;
  • microcantilevers;
  • sensors
Thumbnail image of graphical abstract

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.