151
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Affiliation(s)
- Stephen M. Oja
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Yunshan Fan
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Chadd M. Armstrong
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Peter Defnet
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Bo Zhang
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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152
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Xu Y, Xu B. An Integrated Glass Nanofluidic Device Enabling In-situ Electrokinetic Probing of Water Confined in a Single Nanochannel under Pressure-Driven Flow Conditions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:6165-6171. [PMID: 26485695 DOI: 10.1002/smll.201502125] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/16/2015] [Indexed: 06/05/2023]
Abstract
In-situ measurement of streaming currents in a single nanochannel with femtoliter-scale volumes is achieved using an elaborately designed and fabricated glass nanofluidic chip with probe electrodes embedded within the nanochannel. The device and the method suggest a useful nanoscale tool enabling in situ understanding of the unique liquid properties observed in nanofluidic channels.
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Affiliation(s)
- Yan Xu
- Nanoscience and Nanotechnology Research Center, Research Organization for the 21st Century, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570, Japan
| | - Baihui Xu
- Nanoscience and Nanotechnology Research Center, Research Organization for the 21st Century, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570, Japan
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153
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He Y, Tsutsui M, Miao XS, Taniguchi M. Impact of Water-Depletion Layer on Transport in Hydrophobic Nanochannels. Anal Chem 2015; 87:12040-50. [DOI: 10.1021/acs.analchem.5b03061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuhui He
- School
of Optical and Electronic Information, Huazhong University of Science and Technology, LuoYu Road, Wuhan 430074, China
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Makusu Tsutsui
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Xiang Shui Miao
- School
of Optical and Electronic Information, Huazhong University of Science and Technology, LuoYu Road, Wuhan 430074, China
| | - Masateru Taniguchi
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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154
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Lin CY, Yeh LH, Hsu JP, Tseng S. Regulating Current Rectification and Nanoparticle Transport Through a Salt Gradient in Bipolar Nanopores. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:4594-4602. [PMID: 26148458 DOI: 10.1002/smll.201501210] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 05/25/2015] [Indexed: 06/04/2023]
Abstract
Tuning of ion and nanoparticle transport is validated through applying a salt gradient in two types of nanopores: the inner wall of a nanopore has bipolar charges and its outer wall neutral (type I), and both the inner and outer walls of a nanopore have bipolar charges (type II). The ion current rectification (ICR) behavior of these nanopores can be regulated by an applied salt gradient: if it is small, the degree of ICR in type II nanopore is more significant than that in type I nanopore; a reversed trend is observed at a sufficiently large salt gradient. If the applied salt gradient and electric field have the same direction, type I nanopore exhibits two significant features that are not observed in type II nanopore: (i) a cation-rich concentration polarization field and an enhanced funneling electric field are present near the cathode side of the nanopore, and (ii) the magnitude of the axial electric field inside the nanopore is reduced. These features imply that applying a salt gradient to type I nanopore is capable of simultaneously enhancing the nanoparticle capture into the nanopore and reducing its translocation velocity inside, so that high sensing performance and resolution can be achieved.
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Affiliation(s)
- Chih-Yuan Lin
- Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Li-Hsien Yeh
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliou, Yunlin, 64002, Taiwan
| | - Jyh-Ping Hsu
- Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Shiojenn Tseng
- Department of Mathematics, Tamkang University, New Taipei City, 25137, Taiwan
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155
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Yin X, Zhang S, Dong Y, Liu S, Gu J, Chen Y, Zhang X, Zhang X, Shao Y. Ionic Current Rectification in Organic Solutions with Quartz Nanopipettes. Anal Chem 2015. [DOI: 10.1021/acs.analchem.5b02337] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Xiaohong Yin
- Beijing National Laboratory
for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Shudong Zhang
- Beijing National Laboratory
for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yitong Dong
- Beijing National Laboratory
for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Shujuan Liu
- Beijing National Laboratory
for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jing Gu
- Beijing National Laboratory
for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ye Chen
- Beijing National Laboratory
for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xin Zhang
- Beijing National Laboratory
for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xianhao Zhang
- Beijing National Laboratory
for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yuanhua Shao
- Beijing National Laboratory
for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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156
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Huang MJ, Mei L, Yeh LH, Qian S. pH-Regulated nanopore conductance with overlapped electric double layers. Electrochem commun 2015. [DOI: 10.1016/j.elecom.2015.03.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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157
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Yeh HC, Chang CC, Yang RJ. Electro-osmotic pumping and ion-concentration polarization based on conical nanopores. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2015; 91:062302. [PMID: 26172714 DOI: 10.1103/physreve.91.062302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Indexed: 06/04/2023]
Abstract
A numerical investigation is performed into the characteristics of an electro-osmotic pump consisting of a negatively charged conical nanopore. It is shown that the dependence of the flow rectification effect on the bias direction is the reverse of that of the ion current rectification effect. Moreover, the nozzle mode (i.e., the bias is applied from the base side of the nanopore to the tip side) has a higher flow rate compared to the diffuser mode (i.e., the bias is applied from the tip side of the nanopore to the base side). The results showed that the ion-concentration polarization effect occurred inside the conical nanopore, resulting in surface conduction dominating in the ionic current. The ions inside the nanopore are depleted and enriched under the nozzle mode and the diffuser mode, respectively. As a result, the electro-osmotic pump yields a greater pumping pressure, flow rate, and energy conversion efficiency when operating in the nozzle mode. In addition, we also investigated the flow rate rectification behavior for the conical nanopore. The best flow rate rectification factor in this work is 2.06 for an electrolyte concentration of 10(-3) M.
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Affiliation(s)
- Hung-Chun Yeh
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan
| | - Chih-Chang Chang
- Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Hsinchu 310, Taiwan
| | - Ruey-Jen Yang
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan
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158
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Ma Y, Yeh LH, Lin CY, Mei L, Qian S. pH-Regulated Ionic Conductance in a Nanochannel with Overlapped Electric Double Layers. Anal Chem 2015; 87:4508-14. [DOI: 10.1021/acs.analchem.5b00536] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Yu Ma
- School
of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Li-Hsien Yeh
- Department
of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan
| | - Chih-Yuan Lin
- Institute
of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Lanju Mei
- Institute
of Micro/Nanotechnology, Old Dominion University, Norfolk, Virginia 23529, United States
| | - Shizhi Qian
- Institute
of Micro/Nanotechnology, Old Dominion University, Norfolk, Virginia 23529, United States
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159
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Ivanov AP, Actis P, Jönsson P, Klenerman D, Korchev Y, Edel JB. On-demand delivery of single DNA molecules using nanopipets. ACS NANO 2015; 9:3587-95. [PMID: 25794527 DOI: 10.1021/acsnano.5b00911] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Understanding the behavioral properties of single molecules or larger scale populations interacting with single molecules is currently a hotly pursued topic in nanotechnology. This arises from the potential such techniques have in relation to applications such as targeted drug delivery, early stage detection of disease, and drug screening. Although label and label-free single molecule detection strategies have existed for a number of years, currently lacking are efficient methods for the controllable delivery of single molecules in aqueous environments. In this article we show both experimentally and from simulations that nanopipets in conjunction with asymmetric voltage pulses can be used for label-free detection and delivery of single molecules through the tip of a nanopipet with "on-demand" timing resolution. This was demonstrated by controllable delivery of 5 kbp and 10 kbp DNA molecules from solutions with concentrations as low as 3 pM.
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Affiliation(s)
- Aleksandar P Ivanov
- †Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
| | - Paolo Actis
- ‡Department of Medicine, Imperial College London, London W12 0NN, United Kingdom
| | - Peter Jönsson
- §Department of Chemistry, Lund University, Lund SE-221 00, Sweden
- ∥Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - David Klenerman
- ∥Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Yuri Korchev
- ‡Department of Medicine, Imperial College London, London W12 0NN, United Kingdom
| | - Joshua B Edel
- †Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
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160
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Sze JYY, Kumar S, Ivanov AP, Oh SH, Edel JB. Fine tuning of nanopipettes using atomic layer deposition for single molecule sensing. Analyst 2015; 140:4828-34. [DOI: 10.1039/c5an01001b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ALD modified pipettes provides a quick and efficient method for fine-tuning the nanopore diameter which can be used for a broad range of applications including the detection of small biomolecules at the single molecule level.
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Affiliation(s)
| | - Shailabh Kumar
- Department of Biomedical Engineering
- University of Minnesota
- Minneapolis
- USA
- Department of Electrical and Computer engineering
| | | | - Sang-Hyun Oh
- Department of Biomedical Engineering
- University of Minnesota
- Minneapolis
- USA
- Department of Electrical and Computer engineering
| | - Joshua B. Edel
- Department of Chemistry
- Imperial College London
- London SW7 2AZ
- UK
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161
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Wang L, Zhang H, Yang Z, Zhou J, Wen L, Li L, Jiang L. Fabrication of hydrogel-coated single conical nanochannels exhibiting controllable ion rectification characteristics. Phys Chem Chem Phys 2015; 17:6367-73. [DOI: 10.1039/c4cp05915h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report novel, interesting hydrogel-composited nanochannel devices with regulatable ion rectification characteristics.
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Affiliation(s)
- Linlin Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Huacheng Zhang
- Laboratory of Bio-inspired Smart Interfacial Science
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Zhe Yang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Jianjun Zhou
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Liping Wen
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Organic Solids
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Lin Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Lei Jiang
- Laboratory of Bio-inspired Smart Interfacial Science
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
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