Sm(Ⅲ)(MTB)2配合物与DNA作用的光谱法研究 |
Interaction between Sm(Ⅲ)(MTB)2 Complex and DNA by Spectrometry |
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摘要: |
关键词: Sm(Ⅲ)(MTB)2配合物 甲基百里酚蓝 中性红 DNA |
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Abstract: The interaction between Sm(Ⅲ)(MTB)2 complex and Herring Sperm DNA has been studied by UV-Vis spectral, Fluorescence spectral in buffer solution of Tris-HCl (pH=7.25) using Neutral Red (NR) as a probe. The intercalation and electrostatic manner are confirmed to be the two major modes for interaction between Sm(Ⅲ)(MTB)2 complex and Herring Sperm DNA. The balance constant of Sm(Ⅲ)(MTB)2 rare earth metal complex and Herring Sperm DNA is K=4.10 × 104 L·mol-1. The results indicate that biological functions of Herring Sperm DNA are changed to a certain extend due to the interaction between Sm(Ⅲ)(MTB)2 rare earth metal complex and Herring Sperm DNA. |
Keywords: Sm(Ⅲ)(MTB)2 complex methyl thymol blue cymplexon Neutral Red DNA |
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黎泓波,王兴明,刘海萍,胡亚敏,杨定明,石荣铭,董发勤.Sm(Ⅲ)(MTB)2配合物与DNA作用的光谱法研究[J].无机化学学报,2006,22(9):1695-1700. |
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