| pH对十二烷基二甲基氧化胺与DNA相互作用的影响 |
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| 引用本文： | 孙彦庆,张剑,张高勇. pH对十二烷基二甲基氧化胺与DNA相互作用的影响[J]. 应用化学, 2006, 23(5): 573-0 |
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| 作者姓名： | 孙彦庆 张剑 张高勇 |
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| 作者单位： | a中国日用化学工业研究院表面活性剂国家工程研究中心；b太原理工大学C1化学与化工国家重点实验室 |
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| 摘 要： | pH对十二烷基二甲基氧化胺与DNA相互作用的影响;DNA;十二烷基二甲基氧化胺;相互作用
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| 关 键 词： | pH对十二烷基二甲基氧化胺与DNA相互作用的影响 DNA 十二烷基二甲基氧化胺 相互作用 |
| 文章编号： | 1000-0518(2006)05-0573-03 |
| 收稿时间： | 2005-07-15 |
| 修稿时间： | 2005-09-12 |
Effect of pH on the Interaction Between DNA and N,N-Dimethyldodecylamine N-oxide |
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| SUN Yan-Qing,ZHANG Jian,ZHANG Gao-Yong. Effect of pH on the Interaction Between DNA and N,N-Dimethyldodecylamine N-oxide[J]. Chinese Journal of Applied Chemistry, 2006, 23(5): 573-0 |
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| Authors: | SUN Yan-Qing ZHANG Jian ZHANG Gao-Yong |
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| Affiliation: | 1,State Center for Surfactant Research and Engineering, China Research Institute of Daily Chemical Industry, Taiyuan 030001; 2,C1 Chemistry and Chemical Engineering State Key Lab,Taiyuan Science and Technology University,Taiyua |
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| Abstract: | The interaction between N,N-dimethyldodecylamine N-oxide(DDAO) and salmon sperm DNA was studied.The Effect of pH on DDAO-DNA complex was investigated via the phase diagram.The hydrophobic interaction between non-ionic species DDAO and DNA was quite weak.At low DDAO concentrations,the(cationic) species of DDAO(protonated form) could not induce the conformational transformation of DNA(either).As the concentration of DDAO was higher than the critical micelle concentration of non-ionic species,electrostatic attraction induced DDAO to combine with DNA strongly and phase separation at critical pH value. |
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| Keywords: | Interaction DNA N N-dimethyldodecylamine N-oxide(DDAO) |
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