Nanofluidic Pulser Based on Polymer Conical Nanopores

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	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
刊名	Journal of Physical Chemistry C
	2011
通讯作者邮箱	jmxue@pku.edu.cn
卷号	115 期号:46 页码:22736-22741
关键词	Solid-State Nanopores Ion-Current Current Rectification Narrow Pores Molecules Diode
ISSN号	1932-7447
通讯作者	Xue, JM (reprint author), Peking Univ, State Key Lab Nucl Phys & Technol, Sch Phys, Beijing 100871, Peoples R China
产权排序	[Wang, Lin; Sun, Lixin; Wang, Ceming; Chen, Long; Cao, Liuxuan; Xue, Jianming; Wang, Yugang] Peking Univ, State Key Lab Nucl Phys & Technol, Sch Phys, Beijing 100871, Peoples R China; [Wang, Lin; Sun, Lixin; Wang, Ceming; Chen, Long; Cao, Liuxuan; Xue, Jianming; Wang, Yugang] Peking Univ, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China; [Hu, Guoqing] Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China
合作状况	国内
中文摘要	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.
学科主题	Chemistry; Science & Technology - Other Topics; Materials Science
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 ; ION-CURRENT ; CURRENT RECTIFICATION ; NARROW PORES ; MOLECULES ; DIODE
收录类别	SCI
资助信息	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.
原文出处	http://dx.doi.org/10.1021/jp2047344
语种	英语
WOS记录号	WOS:000297001000006
公开日期	2012-04-01
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/44893]
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	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.,...&Wang YG.(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.