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Appl. Phys. Lett. 83, 1471 (2003); http://dx.doi.org/10.1063/1.1602156 (3 pages)
Sensitive detection of plastic explosives with self-assembled monolayer-coated microcantilevers
(Received 15 May 2003; accepted 27 June 2003)
We report the detection of 10–30 parts-per-trillion levels of pentaerythritol tetranitrate and hexahydro-1,3,5-triazine within 20 s of exposure to a silicon microcantilever with its gold surface modified with a self-assembled monolayer of 4-mercaptobenzoic acid. These measurements correspond to a limit of detection of a few fg. © 2003 American Institute of Physics.
© 2003 American Institute of Physics
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T. Thundat, R. J. Warmach, G. Y. Chen, and D. P. Allison, Appl. Phys. Lett. 64, 2894 (1994)APPLAB000064000021002894000001.
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