| Nanofluidic Pulser Based on Polymer Conical Nanopores | |
Wang L; Sun LX; Wang CM; Chen L; Cao LX; Hu GQ(胡国庆) ; Xue JM; Wang YG; Xue, JM (reprint author), Peking Univ, State Key Lab Nucl Phys & Technol, Sch Phys, Beijing 100871, Peoples R China
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| Source Publication | Journal of Physical Chemistry C
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| 2011 | |
| Volume | 115Issue:46Pages:22736-22741 |
| ISSN | 1932-7447 |
| Abstract | The study of voltage-dependent ion current fluctuation phenomena in synthetic nanopores is important as it is helpful to investigate the mechanism of mass transport in nanoscale systems, which have similarities with natural ion channels in the biological cell membrane. Moreover, we could fabricate some high-performance nanofluidic devices through clearly understanding ion current fluctuation behavior. In this paper, we report a nanofluidic pulser induced by formation and dissolution of weakly soluble salts in conical nanopores. The current fluctuation signals are easily controllable in 1 M KCl electrolyte. Amplitude, frequency, and waveform of ion fluctuation current of the nanofluidic pulser could be controlled by changing the applied negative voltage, and the time ratio of pore opening/dosing could be simply manipulated by the concentration of the bivalent cation. A high-quality square wave of ion current signal is found, especially when the negative voltage is below 300 mV. Additionally, we developed a new model about the formation and dissolution process of precipitation. Our work is helpful for the design of nanoscale ion current waveform generators in the future. |
| Keyword | Solid-state Nanopores Ion-current Current Rectification Narrow Pores Molecules Diode |
| Subject Area | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| DOI | 10.1021/jp2047344 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000297001000006 |
| WOS Keyword | SOLID-STATE NANOPORES ; ION-CURRENT ; CURRENT RECTIFICATION ; NARROW PORES ; MOLECULES ; DIODE |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| Funding Organization | Financial support from NSFC (Grants 10975009 and 90923004) to J.X. and National 973 Project (Grant 2011CB707604) to G.H. is gratefully acknowledged. We thank Professor Neumann of GSI for providing the single ion irradiated PET samples. |
| Department | LNM微纳米流体力学 |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/44893 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Xue, JM (reprint author), Peking Univ, State Key Lab Nucl Phys & Technol, Sch Phys, Beijing 100871, Peoples R China |
| Recommended Citation GB/T 7714 | Wang L,Sun LX,Wang CM,et al. Nanofluidic Pulser Based on Polymer Conical Nanopores[J]. Journal of Physical Chemistry C,2011,115,46,:22736-22741. |
| APA | Wang L.,Sun LX.,Wang CM.,Chen L.,Cao LX.,...&Xue, JM .(2011).Nanofluidic Pulser Based on Polymer Conical Nanopores.Journal of Physical Chemistry C,115(46),22736-22741. |
| MLA | Wang L,et al."Nanofluidic Pulser Based on Polymer Conical Nanopores".Journal of Physical Chemistry C 115.46(2011):22736-22741. |
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