Structure and switching of single-stranded DNA tethered to a charged nanoparticle surface
文献类型：期刊论文
| 作者 | Zhao, Xin-Jun1,2,3; Gao, Zhi-Fu4
|
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2016-07-01 |
| 卷号 | 25期号:7 |
| 关键词 | molecular theory ssDNA tethered to charged nanoparticle surface temperature-dependent switching |
| ISSN号 | 1674-1056 |
| 英文摘要 | Using a molecular theory, we investigate the temperature-dependent self-assembly of single-stranded DNA (ssDNA) tethered to a charged nanoparticle surface. Here the size, conformations, and charge properties of ssDNA are taken into account. The main results are as follows: i) when the temperature is lower than the critical switching temperature, the ssDNA will collapse due to the existence of electrostatic interaction between ssDNA and charged nanoparticle surface; ii) for the short ssDNA chains with the number of bases less than 10, the switching of ssDNA cannot happen, and the critical temperature does not exist; iii) when the temperature increases, the electrostatic attractive interaction between ssDNA and charged nanoparticle surface becomes weak dramatically, and ssDNA chains will stretch if the electrostatic attractive interaction is insufficient to overcome the elastic energy of ssDNA and the electrostatic repulsion energy. These findings accord well with the experimental observations. It is predicted that the switching of ssDNA will not happen if the grafting densities are too high. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | MESOPOROUS SILICA ; CONTROLLED-RELEASE ; POLYMER LAYERS ; RECOGNITION ; MOLECULES ; SYSTEM ; RNA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000384225800027 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/1417]  |
| 专题 | 脉冲星研究团组 新疆天文台_射电天文研究室 |
| 作者单位 | 1.Yi Li Normal Univ, Xinjiang Lab Phase Transit & Microstruct Condense, Yining 835000, Peoples R China 2.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 3.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Xin-Jun,Gao, Zhi-Fu. Structure and switching of single-stranded DNA tethered to a charged nanoparticle surface[J]. CHINESE PHYSICS B,2016,25(7). |
| APA | Zhao, Xin-Jun,&Gao, Zhi-Fu.(2016).Structure and switching of single-stranded DNA tethered to a charged nanoparticle surface.CHINESE PHYSICS B,25(7). |
| MLA | Zhao, Xin-Jun,et al."Structure and switching of single-stranded DNA tethered to a charged nanoparticle surface".CHINESE PHYSICS B 25.7(2016). |
入库方式： OAI收割
来源：新疆天文台
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