Sol-gel composites for optical sensing of solvents

Wallington, Sally-Ann and Pilon, C. and Wright, John D. (1995) Sol-gel composites for optical sensing of solvents. Journal of Sol-Gel Science and Technology, 8 (1-3). pp. 1127-1132. ISSN 0928-0707. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1023/A:1018396005125

Abstract

Porous sol-gel glasses containing entrapped fluorescent-labelled beta-cyclodextrin have been prepared from tetramethylorthosilicate (TMOS). Small non-polar solvent molecules such as cyclohexane and toluene displace the fluorescent label from the cyclodextrin cavity, and the resulting decrease in fluorescence intensity is proportional to the solvent vapour concentration in the range 40-100 ppm, and is reversible. Polar solvents such as acetone give no response. Strategies for optimisation of the system are discussed.

Item Type: Article
Uncontrolled keywords: sensors, cyclodextrin, fluorescence, solvents
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: T.J. Sango
Date Deposited: 07 Mar 1914 03:57
Last Modified: 18 Jul 2014 13:30
Resource URI: http://kar.kent.ac.uk/id/eprint/18017 (The current URI for this page, for reference purposes)
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