| Study on interaction between Dy(Ⅲ)(NR)_3 complex and herring sperm DNA by spectroscopy |
| |
| 引用本文： | 张艳,王兴明,费丹,赵娜,赵婷婷,朱海峰,丁立生.Study on interaction between Dy(Ⅲ)(NR)_3 complex and herring sperm DNA by spectroscopy[J].Chinese Optics Letters,2010(2). |
| |
| 作者姓名： | 张艳 王兴明 费丹 赵娜 赵婷婷 朱海峰 丁立生 |
| |
| 作者单位： | Department;Chemistry;Material;Science;Engineering;College;Southwest;University;Technology;Chengdu;Institute;Biology;Chinese;Academy;Sciences; |
| |
| 基金项目： | supported by the National Natural Science Foundation of China under Grant No.30572254. |
| |
| 摘 要： | <正>The action mode between Dy(III)(NR)_3 and herring sperm DNA is studied by ultraviolet-visible(UVvis) and fluorescence spectra as well as electrochemistry.Double-reciprocal method studies show that the binding stoichiometry between Dy(III)(NR)_3 and DNA is 1:1,the binding constants at different temperatures are 1.15×10~5 L/mol at 25℃and 2.09×10~5 L/mol at 35℃,and the corresponding thermodynamic parameters are△_rH_m~(?) = 2.48×10~4 J/mol,△_rG_m~(?)= -2.34×10~4 J/mol,△_rS_m~(?) = 161.7 J/(mol-K),△_rS_m~(?) is the driving force in this reaction.Combined with Scatchard method and melting method,the results suggest that the interaction mode between Dy(III)(NR)_3 and herring sperm DNA is intercalation fashion and groove fashion.
|
| 本文献已被 CNKI 等数据库收录！ |
|
