|Sensory Arrays of Covalently Functionalized Single-Walled Carbon Nanotubes for Explosive Detection.
|Year of Publication
|Schnorr, JM, van der Zwaag, D, Walish, JJ, Weizmann, Y, Swager, TM
|Advanced Functional Materials
|explosive detection single walled carbon nanotube
Chemiresistive sensor arrays for cyclohexanone and nitromethane are fabricated using single-walled carbon nanotubes (SWCNTs) that are covalently functionalized with urea, thiourea, and squaramide contg. selector units. Based on initial sensing results and 1H NMR binding studies, the most promising selectors are chosen and further optimized. These optimized selectors are attached to SWCNTs and simultaneously tested in a sensor array. The sensors show a very high level of reproducibility between measurements with the same sensor and across different sensors of the same type. Furthermore, the sensors show promising long-term stability, which renders them suitable for practical applications. [on SciFinder(R)]