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Issue 34, 2008
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Calix[4]arenes immobilized in a cellulose-based platform for entrapment and detection of NOx gases

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Abstract

The ability of some ionic liquids to co-dissolve cellulose and other polymers, as well as very hydrophobic molecules, such as gas-sensing calix[4]arenes, allows for the ready construction of nitrogen oxide (NOx) sensors and storage devices. We report here the utilization of a cellulose-based platform for the immobilization of calix[4]arenes and the subsequent use of these materials for the reversible colorimetric detection of NOx. These sensors may be exposed directly to NOx gas for quick colorimetric calixarene–NO+ complexation, which can be rapidly or slowly reversed with humidity, depending on the desired application (e.g., sensing vs.storage).

Graphical abstract: Calix[4]arenes immobilized in a cellulose-based platform for entrapment and detection of NOx gases

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Publication details

The article was received on 26 Feb 2008, accepted on 06 Jun 2008 and first published on 18 Jul 2008


Article type: Paper
DOI: 10.1039/B803289K
Citation: J. Mater. Chem., 2008,18, 4050-4055
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    Calix[4]arenes immobilized in a cellulose-based platform for entrapment and detection of NOx gases

    J. H. Hines, E. Wanigasekara, D. M. Rudkevich and R. D. Rogers, J. Mater. Chem., 2008, 18, 4050
    DOI: 10.1039/B803289K

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