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

被引：36
作者：
Khorasani-Motlagh, Mozhgan [1 ]
Noroozifar, Meissam [1 ]
Khmmarnia, Sommaieh [1 ]
机构：
[1] Univ Sistan & Baluchestan, Dept Chem, Zahedan, Iran
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2011年 / 78卷 / 01期
关键词：
Praseodymium(III); 2,2 '-Bipyridine; UV-vis; Luminescence; DNA-binding; Thermodynamic; TRIPLE-HELIX FORMATION; DOUBLE-STRAND DNA; NUCLEIC-ACIDS; CLEAVAGE; PROBE; CONFORMATION; LIGANDS; BASE;
D O I：
10.1016/j.saa.2010.10.026
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The fluorescence of praseodymium(III) complex containing 2,2'-bipyridine, [Pr(bpy)(2)Cl-3 center dot OH2] has been investigated in details. Also, the biological activity of (Pr(bpy)(2)Cl-3 center dot OH2] 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)(2)Cl-3 center dot OH2] 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)(2)Cl-3 center dot OH2] with DNA. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：389 / 395
页数：7
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