Influence of Ionic Strength on DNA Mediated Charge Transport -Experiments and the Related Debye-Huckel Theory
文献类型：期刊论文
| 作者 | Ji Zhong-Hua1; Zhu Bin1; Li Jing-Jian1; Cai Sheng-Min1; Yuan Gu2; Xu Dong-Sheng1 |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2012-10-01 |
| 卷号 | 28期号:10页码:2258-2262 |
| 关键词 | Ionic Strength Debye-huckel Theory Dna Minor Groove Broadened Pi-stack Charge Transport |
| ISSN号 | 1000-6818 |
| DOI | 10.3866/PKU.WHXB201208281 |
| 英文摘要 | The ionic strength dependence of DNA mediated charge transport was studied on a DNA binding polyamide-modified electrode by the electrochemical method. The differential pulse voltammetry peak potential of [Ru(NH3)(6)](3+) shifted negatively as the support electrolyte concentration increased. A linear relationship was observed between the peak potential and ionic strength in the solution at moderate salt concentrations. This could be interpreted with Debye-Hilickel theory using formal potential as a "bridge", which linked experiments results and theoretically calculated values. At high salt concentrations, this linear relationship deviated from Debye-Huckel theory prediction because it was outside the range of validity. Without added salt in the solution, the fully charged DNA duplex will strongly attract the probe molecule [Ru(NH3)(6)](3+) to the broadened p-stack of a DNA-polyamide complex, which facilitates DNA mediated charge transport. |
| 语种 | 英语 |
| WOS记录号 | WOS:000310181300004 |
| 出版者 | PEKING UNIV PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47199]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li Jing-Jian |
| 作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, Inst Phys Chem, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Key Lab Bioorgan Chem & Mol Engn, Dept Biol Chem,Minist Educ, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ji Zhong-Hua,Zhu Bin,Li Jing-Jian,et al. Influence of Ionic Strength on DNA Mediated Charge Transport -Experiments and the Related Debye-Huckel Theory[J]. ACTA PHYSICO-CHIMICA SINICA,2012,28(10):2258-2262. |
| APA | Ji Zhong-Hua,Zhu Bin,Li Jing-Jian,Cai Sheng-Min,Yuan Gu,&Xu Dong-Sheng.(2012).Influence of Ionic Strength on DNA Mediated Charge Transport -Experiments and the Related Debye-Huckel Theory.ACTA PHYSICO-CHIMICA SINICA,28(10),2258-2262. |
| MLA | Ji Zhong-Hua,et al."Influence of Ionic Strength on DNA Mediated Charge Transport -Experiments and the Related Debye-Huckel Theory".ACTA PHYSICO-CHIMICA SINICA 28.10(2012):2258-2262. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。