Biphasic Resistive Pulses and Ion Concentration Modulation during Particle Translocation through Cylindrical Nanopores
文献类型：期刊论文
| 作者 | Chen KK; Shan L; He SY; Hu GQ(胡国庆) ; Meng YG; Tian Y
|
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2015-04-16 |
| 卷号 | 119期号:15页码:8329-8335 |
| 通讯作者邮箱 | tianyu@mail.tsinghua.edu.cn |
| ISSN号 | 1932-7447 |
| 其他题名 | JOURNAL OF PHYSICAL CHEMISTRY C |
| 产权排序 | [Chen, Kaikai; Shan, Lei; Meng, Yonggang; Tian, Yu] Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China; [He, Siyuan; Hu, Guoqing] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Tian, Y (reprint author), Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China. |
| 中文摘要 | We investigated the biphasic resistive pulses during particle translocation through cylindrical nanopores at low salt concentration by simulation, and the effects of electrolyte concentration, surface charge, electric potential, and pore geometry were systematically discussed. The formation of positive peaks in the pulses is ascribed to the surface charge on the particle and the pore. The peak current enhancement/decline ratio increases linearly with the particle surface charge density but decreases with the salt concentration increase. We find that there is an optimum electric potential for the peak current enhancement ratio to reach the maximum value. When a negatively charged particle is at the orifice of the pore on the low/high potential side, the ion concentration inside and around the pore is significantly depleted/enriched, while inverse electric potential or inverse surface charge has an opposite effect. The extent of such ion modulation is larger with a longer pore. The peak current enhancement/decline ratio is quantitatively linked to the percent of ion concentration enrichment/depletion inside and around the pore, by considering particle occupied volume and concentration change. |
| 分类号 | 一类 |
| 类目[WOS] | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 关键词[WOS] | SOLID-STATE NANOPORES ; SINGLE-NANOPARTICLE DETECTION ; DNA TRANSLOCATION ; ACCESS RESISTANCE ; SHAPED NANOPORES ; GLASS NANOPORES ; ASPECT-RATIO ; PORE ; CHARGE ; SIMULATION |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1021/acs.jpcc.5b00047 |
| 语种 | 英语 |
| WOS记录号 | WOS:000353249500042 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49981]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Chen KK,Shan L,He SY,et al. Biphasic Resistive Pulses and Ion Concentration Modulation during Particle Translocation through Cylindrical Nanopores[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(15):8329-8335. |
| APA | Chen KK,Shan L,He SY,Hu GQ,Meng YG,&Tian Y.(2015).Biphasic Resistive Pulses and Ion Concentration Modulation during Particle Translocation through Cylindrical Nanopores.JOURNAL OF PHYSICAL CHEMISTRY C,119(15),8329-8335. |
| MLA | Chen KK,et al."Biphasic Resistive Pulses and Ion Concentration Modulation during Particle Translocation through Cylindrical Nanopores".JOURNAL OF PHYSICAL CHEMISTRY C 119.15(2015):8329-8335. |
入库方式： OAI收割
来源：力学研究所
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。