Study on fluorescence and DNA-binding of praseodymium(III) complex containing 2,2′-bipyridine

The fluorescence of praseodymium(III) complex containing 2,2′-bipyridine, [Pr(bpy) 2Cl 3·OH 2] has been investigated in details. Also, the biological activity of [Pr(bpy) 2Cl 3·OH 2] has been evaluated by examining its ability to bind to DNA with UV–vis, fluorescence as well as viscosity measurement...

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Bibliographic Details
Published in:Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Molecular and biomolecular spectroscopy, 2011, Vol.78 (1), p.389-395
Main Authors: Khorasani-Motlagh, Mozhgan, Noroozifar, Meissam, Khmmarnia, Sommaieh
Format: Article
Language:English
Subjects:
2,2′-Bipyridine
DNA-binding
Luminescence
Praseodymium(III)
Thermodynamic
UV–vis
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Summary:The fluorescence of praseodymium(III) complex containing 2,2′-bipyridine, [Pr(bpy) 2Cl 3·OH 2] has been investigated in details. Also, the biological activity of [Pr(bpy) 2Cl 3·OH 2] has been evaluated by examining its ability to bind to DNA with UV–vis, fluorescence as well as viscosity measurement. The fluorescence of [Pr(bpy) 2Cl 3·OH 2] is strongly quenched through static mechanism in the presence of DNA. DNA intrinsic binding constant, K b the binding site number, n the Stern–Volmer quenching constant, K SV and the thermodynamic parameters have been determined by fluorescence spectroscopy. For characterization of bonding mode, the effect of various experimental parameters were investigated on the interaction of [Pr(bpy) 2Cl 3·OH 2] with DNA.
ISSN:1386-1425
DOI:10.1016/j.saa.2010.10.026