Synthesis and characterization of fluoride fluorescent sensor

Yousef M. Hijji; Gilbert Wairia; Achelle Edwards; Maurice Iwunze; Alvin P. Kennedy Sr.; Richard J. Williams

doi:10.1117/12.572459

7 December 2004 Synthesis and characterization of fluoride fluorescent sensor

Yousef M. Hijji, Gilbert Wairia, Achelle Edwards, Maurice Iwunze, Alvin P. Kennedy Sr., Richard J. Williams

Proceedings Volume 5588, Smart Medical and Biomedical Sensor Technology II; (2004) https://doi.org/10.1117/12.572459
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

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.

Citation Download Citation

Yousef M. Hijji, Gilbert Wairia, Achelle Edwards, Maurice Iwunze, Alvin P. Kennedy Sr., and Richard J. Williams "Synthesis and characterization of fluoride fluorescent sensor", Proc. SPIE 5588, Smart Medical and Biomedical Sensor Technology II, (7 December 2004); https://doi.org/10.1117/12.572459

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