节点文献
盐对DNA相变影响的非线性特性研究
The nonlinear characteristics study of the effect of salt on denaturation transition of DNA
【摘要】 在Prohofsky ,Peyrard Bishop等提出的描述DNA双螺旋分子结构模型以及实验测量的基础上 ,给出了与盐 (指NaCl)浓度有关的哈密顿模型 ,得到了非线性动力学方程及扭结孤波解 .并由此求出了DNA变性相变所需要的Peierls相变力 .进一步讨论了盐浓度对相界面和相变力的影响 ,得到的结果与实验测量一致 .
【Abstract】 The nonlinear dynamics model of DNA was studied, which is related to the salt co ncentration. The nonlinear dynamics equation and kink solution were obtained, th e influence of salt on phase boundary and phase transition force of DNA denatura tion were discussed. These results obtained by numerical calculations are in agr eement with experimental data in DNA.
【关键词】 DNA;
盐浓度;
相界面;
相变力;
【Key words】 DNA; salt concentration; phase boundary; phase transition force;
【Key words】 DNA; salt concentration; phase boundary; phase transition force;
【基金】 教育部博士点基金 (批准号 :2 0 0 10 614 0 0 5 )资助的课题~~
- 【文献出处】 物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,2003年12期
- 【分类号】Q523
- 【被引频次】8
- 【下载频次】115