Sensory Arrays of Covalently Functionalized Single-Walled Carbon Nanotubes for Explosive Detection.

TitleSensory Arrays of Covalently Functionalized Single-Walled Carbon Nanotubes for Explosive Detection.
Publication TypeJournal Article
Year of Publication2013
AuthorsSchnorr, JM, van der Zwaag, D, Walish, JJ, Weizmann, Y, Swager, TM
JournalAdvanced Functional Materials
Volume23
Pagination5285–5291
ISSN1616-301X
Keywordsexplosive detection single walled carbon nanotube
Abstract

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)]

DOI10.1002/adfm.201300131