Issue 34, 2008

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

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

Article information

Article type
Paper
Submitted
26 Feb 2008
Accepted
06 Jun 2008
First published
18 Jul 2008

J. Mater. Chem., 2008,18, 4050-4055

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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