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Chemical Sensor Based on an Artificial Receptor Element Trapped in a Porous Sol-Gel Glass Matrix

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A synthetic organic receptor, dansyl-tethered β-cyclodextrin, is doped into an inorganic sol-gel matrix and spin cast as a film on fused-silica plates. The entrapped receptor exhibits changes in its fluorescence in the presence of borneol. Thus, this new material can be used as a reversible sensor. Various aspects of a sol-gel matrix as a host for recognition molecules were explored. This system demonstrates the possibility of using artificial receptors and sol-gel porous glass films for chemical sensing purposes.

Keywords: Artificial receptor; Dansyl-tethered β-cyclodextrin; Fluorescence; Sol-Gel film-based sensor

Document Type: Research Article


Affiliations: Department of Chemistry and Photonics Research Laboratory, State University of New York at Buffalo, Buffalo, New York 14214

Publication date: October 1, 1993

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