Charge transport in dna molecules: cooperative interplay between the disordered base-pair channel and the ordered backbone
文献类型：期刊论文
| 作者 | Zhang, Wei1; Yang, Rong2; Ulloa, Sergio E.3,4 |
| 刊名 | Physical review e
 |
| 出版日期 | 2009-11-01 |
| 卷号 | 80期号:5页码:7 |
| 关键词 | Bioelectric phenomena Dna Molecular biophysics Transport processes |
| ISSN号 | 1539-3755 |
| DOI | 10.1103/physreve.80.051901 |
| 通讯作者 | Zhang, wei() |
| 英文摘要 | Charge transport in dna molecules has raised considerable interest because of its importance in biological processes and potential applications in nanoscale devices. a dna molecule can be viewed as a quasi-one-dimensional system composed of stacked base pairs (at, cg) together with backbones of sugar phosphates. motivated by recent experimental observations on the importance of the backbone integrity, we investigate the interplay between charge transport through the ordered backbone and disordered base stacks with random sequences. by analytical and numerical calculations, we find that the coupling between the backbone and base-pair channels plays an important role in charge transport. the backbone can generate effective hopping constants well beyond the adjacent base pairs, enhancing charge transport through the base-pair channel. the corresponding enhancement of the localization length is nearly independent of the length of the dna and increases with increasing coupling between backbone and base pair. our model can explain qualitatively several experimental observations. |
| WOS关键词 | ELECTRICAL-TRANSPORT ; SCALING THEORY ; LAMBDA-DNA ; ABSENCE ; CONDUCTIVITY ; LOCALIZATION ; SEQUENCE ; MODEL |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Fluids & Plasmas ; Physics, Mathematical |
| 语种 | 英语 |
| WOS记录号 | WOS:000272309500066 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175917 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Zhang, Wei |
| 作者单位 | 1.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China 2.Natl Ctr Nanosci & Technol China, Key Lab Biol Effects Nanomat & Nanosafety, Beijing 100190, Peoples R China 3.Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA 4.Ohio Univ, Nanoscale & Quantum Phenomena Inst, Athens, OH 45701 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Wei,Yang, Rong,Ulloa, Sergio E.. Charge transport in dna molecules: cooperative interplay between the disordered base-pair channel and the ordered backbone[J]. Physical review e,2009,80(5):7. |
| APA | Zhang, Wei,Yang, Rong,&Ulloa, Sergio E..(2009).Charge transport in dna molecules: cooperative interplay between the disordered base-pair channel and the ordered backbone.Physical review e,80(5),7. |
| MLA | Zhang, Wei,et al."Charge transport in dna molecules: cooperative interplay between the disordered base-pair channel and the ordered backbone".Physical review e 80.5(2009):7. |
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来源：高能物理研究所
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