Wallington, S.A. and Pilon, C. and Wright, J.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.
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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.
|Uncontrolled keywords:||sensors, cyclodextrin, fluorescence, solvents|
|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:||07 Mar 1914 03:57|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/18017 (The current URI for this page, for reference purposes)|
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