IMECH-IR  > 非线性力学国家重点实验室
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
Source PublicationJournal of Physical Chemistry C
2011
Volume115Issue:46Pages:22736-22741
ISSN1932-7447
AbstractThe 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.
KeywordSolid-state Nanopores Ion-current Current Rectification Narrow Pores Molecules Diode
Subject AreaChemistry ; Science & Technology - Other Topics ; Materials Science
DOI10.1021/jp2047344
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000297001000006
WOS KeywordSOLID-STATE NANOPORES ; ION-CURRENT ; CURRENT RECTIFICATION ; NARROW PORES ; MOLECULES ; DIODE
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationFinancial 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.
DepartmentLNM微纳米流体力学
Classification一类
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44893
Collection非线性力学国家重点实验室
Corresponding AuthorXue, 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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