15 May 1998 Sensors for buried land mines based on guest-host recognition and self-assembly
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Species selective and sensitive films were designed and fabricated for sensing explosives such as TNT. The molecular recognition host reagents were functionalized and covalently attached to a surface acoustic wave (SAW) transducer surface for detecting nitroaromatic species in gas phase. The selectivity and sensitivity of the film are based on host- guest interaction between the host reagent and gas phase species. The film fabrication employs molecular self- assembly technique to construct stable and organized films. The self-assembled monolayer film containing permethylated beta-cyclodextrin can detect o-nitrotoluene at 60 parts per billion. The multilayer films based on covalently attached cyclodextrin polymers can detect o-nitrotoluene at 600 parts per trillion.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Basil I. Swanson, Basil I. Swanson, Jing-Xuan Shi, Jing-Xuan Shi, Sabina R. Johnson, Sabina R. Johnson, Xiaoguang Yang, Xiaoguang Yang, } "Sensors for buried land mines based on guest-host recognition and self-assembly", Proc. SPIE 3270, Methods for Ultrasensitive Detection, (15 May 1998); doi: 10.1117/12.308383; https://doi.org/10.1117/12.308383

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