Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1234242 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2010 | 5 Pages |
Abstract
The luminescence of thenoyltrifluoroacetonate (TTA) coordination complexes of trivalent europium ion (Eu(III)) in aqueous solutions and in solid-state polymeric films is probed upon single- and two-photon preresonant excitation with Ti:sapphire femtosecond laser. Particularly, diamine-liganded Eu(III)(TTA)3 and poly(oxyethylene phosphate)tris(β-diketonate)Eu(III) complexes are examined aiming their possible applications as luminescent labels for sensing and imaging of biological molecules. Even at a pre-resonance, the excitation of these compounds with high-intensity, broadband light of frequency-doubled Ti:sapphire femtosecond laser centered around 400 nm results in a luminescence response suitable for fluorometric applications.
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Authors
Georgi B. Hadjichristov, Ivan L. Stefanov, Stanislav S. Stanimirov, Ivan K. Petkov,