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Proceedings Paper

Synthesis and characterization of fluoride fluorescent sensor
Author(s): Yousef M. Hijji; Gilbert Wairia; Achelle Edwards; Maurice Iwunze; Alvin P. Kennedy Sr.; Richard J. Williams
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Paper Abstract

Due to the importance of fluoride in clinical treatment of osteoporosis and its toxicity from over accumulation in bones there is an increased interest in developing selective optical methods for the detection of fluoride anion. Anion recognition and sensing are of interest because of their importance in biological environmental assays and efforts are paid for developing sensitive methods. We synthesized salicylidene furfurylamine 1 and studied spectral properties. Compound 1 fluoresced strongly and the fluorescence was strongly enhanced in the presence of anions as fluoride at low concentrations. A substantially red-shifted emission in acetonitrile was observed. The excitation at 390 nm and the emission was observed at 469nm. Fluoride showed strong absorption and fluorescence enhancement with a significant Stokes shift. Acetate, dihydrogen phosphate, showed small effect, while chloride, bromide had no significant effect.

Paper Details

Date Published: 7 December 2004
PDF: 10 pages
Proc. SPIE 5588, Smart Medical and Biomedical Sensor Technology II, (7 December 2004); doi: 10.1117/12.572459
Show Author Affiliations
Yousef M. Hijji, Morgan State Univ. (United States)
Gilbert Wairia, Morgan State Univ. (United States)
Achelle Edwards, Morgan State Univ. (United States)
Maurice Iwunze, Morgan State Univ. (United States)
Alvin P. Kennedy Sr., Morgan State Univ. (United States)
Richard J. Williams, Morgan State Univ. (United States)

Published in SPIE Proceedings Vol. 5588:
Smart Medical and Biomedical Sensor Technology II
Brian M. Cullum, Editor(s)

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