Sensory arrays of covalently functionalized single-walled carbon nanotubes for explosive detection

JM Schnorr, D. Zwaag, van der, J.J. Walish, Y. Weizmann, T.M. Swager

Research output: Contribution to journalArticleAcademicpeer-review

79 Citations (Scopus)
2 Downloads (Pure)

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 containing selector units. Based on initial sensing results and H-1 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.
Original languageEnglish
Pages (from-to)5285-5291
JournalAdvanced Functional Materials
Volume23
Issue number42
DOIs
Publication statusPublished - 2013

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