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Zhou X, Zong Y, Wang Y, Sun M, Shi D, Wang W, Du G, Xie Y. Nanofluidic memristor based on the elastic deformation of nanopores with nanoparticle adsorption. Natl Sci Rev 2024; 11:nwad216. [PMID: 38487493 PMCID: PMC10939365 DOI: 10.1093/nsr/nwad216] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 06/13/2023] [Accepted: 07/15/2023] [Indexed: 03/17/2024] Open
Abstract
The memristor is the building block of neuromorphic computing. We report a new type of nanofluidic memristor based on the principle of elastic strain on polymer nanopores. With nanoparticles absorbed at the wall of a single conical polymer nanopore, we find a pinched hysteresis of the current within a scanning frequency range of 0.01-0.1 Hz, switching to a diode below 0.01 Hz and a resistor above 0.1 Hz. We attribute the current hysteresis to the elastic strain at the tip side of the nanopore, caused by electrical force on the particles adsorbed at the inner wall surface. Our simulation and analytical equations match well with experimental results, with a phase diagram for predicting the system transitions. We demonstrate the plasticity of our nanofluidic memristor to be similar to a biological synapse. Our findings pave a new way for ionic neuromorphic computing using nanofluidic memristors.
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Affiliation(s)
- Xi Zhou
- Department of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yuanyuan Zong
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yongchang Wang
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
| | - Miao Sun
- School of Aeronautics and Institute of Extreme Mechanics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Deli Shi
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
| | - Wei Wang
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
| | - Guanghua Du
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yanbo Xie
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
- School of Aeronautics and Institute of Extreme Mechanics, Northwestern Polytechnical University, Xi’an 710072, China
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2
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Tuleushev AZ, Harrison FE, Kozlovskiy AL, Zdorovets MV. Insight into What Is inside Swift Heavy Ion Latent Tracks in PET Film. Polymers (Basel) 2023; 15:4050. [PMID: 37896294 PMCID: PMC10610178 DOI: 10.3390/polym15204050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
We present here a novel experimental study of changes after contact electrification in the optical transmission spectra of samples of both pristine and irradiated PET film treated with Kr+15 ions of energy of 1.75 MeV and a fluence of 3 × 1010 cm2. We used a non-standard electrification scheme for injecting electrons into the film by applying negative electrodes to both its surfaces and using the positively charged inner regions of the film itself as the positive electrode. Electrification led to a decrease in the intensity of the internal electric fields for both samples and a hypsochromic (blue) shift in their spectra. For the irradiated PET sample, electrification resulted in a Gaussian modulation of its optical properties in the photon energy range 2.3-3.6 eV. We associate this Gaussian modulation with the partial decay of non-covalent extended conjugated systems that were formed under the influence of the residual radial electric field of the SHI latent tracks. Our studies lead us to suggest the latent track in the PET film can be considered as a variband material in the radial direction. Consideration of our results along with other published experimental results leads us to conclude that these can all be consistently understood by taking into account both the swift and slow electrons produced by SHI irradiation, and that it appears that the core of a latent track is negatively charged, and the periphery is positively charged.
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Affiliation(s)
- Adil Z. Tuleushev
- Engineering Profile Laboratory, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan; (A.Z.T.)
| | - Fiona E. Harrison
- Engineering Profile Laboratory, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan; (A.Z.T.)
| | - Artem L. Kozlovskiy
- Engineering Profile Laboratory, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan; (A.Z.T.)
- Laboratory of Solid State Physics, The Institute of Nuclear Physics, Almaty 050032, Kazakhstan
| | - Maxim V. Zdorovets
- Engineering Profile Laboratory, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan; (A.Z.T.)
- Laboratory of Solid State Physics, The Institute of Nuclear Physics, Almaty 050032, Kazakhstan
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3
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Cutroneo M, Havranek V, Mackova A, Malinsky P, Miksova R, Ceccio G, Ando’ L, Michalcova A. Overview of Polyethylene Terephthalate Foils Patterned Using 10 MeV Carbon Ions for Realization of Micromembranes. MICROMACHINES 2023; 14:284. [PMID: 36837984 PMCID: PMC9964241 DOI: 10.3390/mi14020284] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Polymer membranes are conventionally prepared using high-energy particles from radioactive decay or by the bombardment of hundreds of MeVs energy ions. In both circumstances, tracks of damage are produced by particles/ions passing through the polymer, and successively, the damaged material is removed by chemical etching to create narrow pores. This process ensures nanosized pore diameter but with random placement, leading to non-uniform local pore density and low membrane porosity, which is necessary to reduce the risk of their overlapping. The present study is focused on the use of polyethylene terephthalate (PET) foils irradiated by 10.0 MeV carbon ions, easily achievable with ordinary ion accelerators. The ion irradiation conditions and the chemical etching conditions were monitored to obtain customized pore locations without pore overlapping in PET. The quality, shape, and size of the pores generated in the micromembranes can have a large impact on their applicability. In this view, the Scanning Transmission Ion Microscopy coupled with a computer code created in our laboratory was implemented to acquire new visual and quantitative insights on fabricated membranes.
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Affiliation(s)
- Mariapompea Cutroneo
- Nuclear Physics Institute, The Czech Academy of Sciences (CAS), 25068 Rez, Czech Republic
| | - Vladimir Havranek
- Nuclear Physics Institute, The Czech Academy of Sciences (CAS), 25068 Rez, Czech Republic
| | - Anna Mackova
- Nuclear Physics Institute, The Czech Academy of Sciences (CAS), 25068 Rez, Czech Republic
- Department of Physics, Faculty of Science, University of J. E. Purkyně, Pasteurova 3544/1, 40096 Ústí nad Labem, Czech Republic
| | - Petr Malinsky
- Nuclear Physics Institute, The Czech Academy of Sciences (CAS), 25068 Rez, Czech Republic
- Department of Physics, Faculty of Science, University of J. E. Purkyně, Pasteurova 3544/1, 40096 Ústí nad Labem, Czech Republic
| | - Romana Miksova
- Nuclear Physics Institute, The Czech Academy of Sciences (CAS), 25068 Rez, Czech Republic
| | - Giovanni Ceccio
- Nuclear Physics Institute, The Czech Academy of Sciences (CAS), 25068 Rez, Czech Republic
| | - Lucio Ando’
- National Institute of Nuclear Physics-INFN, Sezione di Catania, Via S. Sofia 64, 95123 Catania, Italy
| | - Alena Michalcova
- Department of Metals and Corrosion Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
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Ceccio G, Vacik J, Siegel J, Cannavó A, Choukourov A, Pleskunov P, Tosca M, Fink D. Etching and Doping of Pores in Polyethylene Terephthalate Analyzed by Ion Transmission Spectroscopy and Nuclear Depth Profiling. MEMBRANES 2022; 12:1061. [PMID: 36363615 PMCID: PMC9696164 DOI: 10.3390/membranes12111061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/20/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
This work is devoted to the study of controlled preparation and filling of pores in polyethylene terephthalate (PET) membranes. A standard wet chemical etching with different protocols (isothermal and isochronous etching for different times and temperatures and etching from one or both sides of the films) was used to prepare the micrometric pores. The pores were filled with either a LiCl solution or boron deposited by magnetron sputtering. Subsequent control of the pore shape and dopant filling was performed using the nuclear methods of ion transmission spectroscopy (ITS) and neutron depth profiling (NDP). It turned out that wet chemical etching, monitored and quantified by ITS, was shown to enable the preparation of the desired simple pore geometry. Furthermore, the effect of dopant filling on the pore shape could be well observed and analyzed by ITS and, for relevant light elements, by NDP, which can determine their depth (and spatial) distribution. In addition, both non-destructive methods were proven to be suitable and effective tools for studying the preparation and filling of pores in thin films. Thus, they can be considered promising for research into nanostructure technologies of thin porous membranes.
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Affiliation(s)
- Giovanni Ceccio
- Department of Neutron Physics, Nuclear Physics Institute (NPI) of the Czech Academy of Sciences (CAS), 250 68 Husinec, Czech Republic
| | - Jiri Vacik
- Department of Neutron Physics, Nuclear Physics Institute (NPI) of the Czech Academy of Sciences (CAS), 250 68 Husinec, Czech Republic
| | - Jakub Siegel
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28 Prague, Czech Republic
| | - Antonino Cannavó
- Department of Neutron Physics, Nuclear Physics Institute (NPI) of the Czech Academy of Sciences (CAS), 250 68 Husinec, Czech Republic
| | - Andrey Choukourov
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holesovickach 2, 180 00 Prague, Czech Republic
| | - Pavel Pleskunov
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holesovickach 2, 180 00 Prague, Czech Republic
| | - Marco Tosca
- Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holesovickach 2, 180 00 Prague, Czech Republic
- ELI —Beamlines Centre, Institute of Physics (FZU), Czech Academy of Sciences, 252 41 Dolni Brezany, Czech Republic
| | - Dietmar Fink
- Department of Neutron Physics, Nuclear Physics Institute (NPI) of the Czech Academy of Sciences (CAS), 250 68 Husinec, Czech Republic
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5
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AFM Characterization of Track-Etched Membranes: Pores Parameters Distribution and Disorder Factor. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031334] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The structural characteristics of polymer track-etched membranes (TM) were obtained by atomic force microscopy (AFM) for a set of samples (polypropylene, polycarbonate, polyethylene terephthalate, with average pore diameters ~183, 375, and 1430 nm, respectively). The analysis of AFM experimental data was performed by using a specially developed technique for computer analysis of AFM images. The method allows one to obtain such parameters of TM as distribution of pore diameters, distribution of the minimum distances between the nearest pores, pore surface density, as well as to identify defective pores. Spatial inhomogeneities in the distribution of pore parameters were revealed. No anisotropy (some specific selected direction) was found in the surface distribution of the pores in the samples under study.
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6
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Perez-Grau JJ, Ramirez P, Garcia-Morales V, Cervera J, Nasir S, Ali M, Ensinger W, Mafe S. Fluoride-Induced Negative Differential Resistance in Nanopores: Experimental and Theoretical Characterization. ACS APPLIED MATERIALS & INTERFACES 2021; 13:54447-54455. [PMID: 34735108 PMCID: PMC9131425 DOI: 10.1021/acsami.1c18672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 10/25/2021] [Indexed: 06/13/2023]
Abstract
We describe experimentally and theoretically the fluoride-induced negative differential resistance (NDR) phenomena observed in conical nanopores operating in aqueous electrolyte solutions. The threshold voltage switching occurs around 1 V and leads to sharp current drops in the nA range with a peak-to-valley ratio close to 10. The experimental characterization of the NDR effect with single pore and multipore samples concern different pore radii, charge concentrations, scan rates, salt concentrations, solvents, and cations. The experimental fact that the effective radius of the pore tip zone is of the same order of magnitude as the Debye length for the low salt concentrations used here is suggestive of a mixed pore surface and bulk conduction regime. Thus, we propose a two-region conductance model where the mobile cations in the vicinity of the negative pore charges are responsible for the surface conductance, while the bulk solution conductance is assumed for the pore center region.
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Affiliation(s)
- Jose J. Perez-Grau
- Departament
de Física Aplicada, Universitat Politècnica
de València, E-46022 Valencia, Spain
| | - Patricio Ramirez
- Departament
de Física Aplicada, Universitat Politècnica
de València, E-46022 Valencia, Spain
| | - Vladimir Garcia-Morales
- Departament
de Física de la Terra i Termodinàmica, Universitat de València, E-46100 Burjassot, Spain
| | - Javier Cervera
- Departament
de Física de la Terra i Termodinàmica, Universitat de València, E-46100 Burjassot, Spain
| | - Saima Nasir
- Department
of Material- and Geo-Sciences, Materials Analysis, Technische Universität Darmstadt, Alarich-Weiss-Str. 02, D-64287 Darmstadt, Germany
- Materials
Research Department, GSI Helmholtzzentrum
für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
| | - Mubarak Ali
- Department
of Material- and Geo-Sciences, Materials Analysis, Technische Universität Darmstadt, Alarich-Weiss-Str. 02, D-64287 Darmstadt, Germany
- Materials
Research Department, GSI Helmholtzzentrum
für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
| | - Wolfgang Ensinger
- Department
of Material- and Geo-Sciences, Materials Analysis, Technische Universität Darmstadt, Alarich-Weiss-Str. 02, D-64287 Darmstadt, Germany
| | - Salvador Mafe
- Departament
de Física de la Terra i Termodinàmica, Universitat de València, E-46100 Burjassot, Spain
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7
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Blonskaya I, Lizunov N, Olejniczak K, Orelovich O, Yamauchi Y, Toimil-Molares M, Trautmann C, Apel P. Elucidating the roles of diffusion and osmotic flow in controlling the geometry of nanochannels in asymmetric track-etched membranes. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118657] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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8
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Blonskaya IV, Kristavchuk OV, Nechaev AN, Orelovich OL, Polezhaeva OA, Apel PY. Observation of latent ion tracks in semicrystalline polymers by scanning electron microscopy. J Appl Polym Sci 2020. [DOI: 10.1002/app.49869] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Irina V. Blonskaya
- Flerov Laboratory of Nuclear Reactions Joint Institute for Nuclear Research Dubna Russia
| | - Olga V. Kristavchuk
- Flerov Laboratory of Nuclear Reactions Joint Institute for Nuclear Research Dubna Russia
| | - Alexandr N. Nechaev
- Flerov Laboratory of Nuclear Reactions Joint Institute for Nuclear Research Dubna Russia
- Dubna State University Dubna Russia
| | - Oleg L. Orelovich
- Flerov Laboratory of Nuclear Reactions Joint Institute for Nuclear Research Dubna Russia
| | - Olga A. Polezhaeva
- Flerov Laboratory of Nuclear Reactions Joint Institute for Nuclear Research Dubna Russia
| | - Pavel Y. Apel
- Flerov Laboratory of Nuclear Reactions Joint Institute for Nuclear Research Dubna Russia
- Dubna State University Dubna Russia
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9
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Lee WG, Cho Y, Kang SW. Effect of Ionic Radius in Metal Nitrate on Pore Generation of Cellulose Acetate in Polymer Nanocomposite. Polymers (Basel) 2020; 12:polym12040981. [PMID: 32340116 PMCID: PMC7240385 DOI: 10.3390/polym12040981] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 01/17/2023] Open
Abstract
To prepare a porous cellulose acetate (CA) for application as a battery separator, Cd(NO3)2·4H2O was utilized with water-pressure as an external physical force. When the CA was complexed with Cd(NO3)2·4H2O and exposed to external water-pressure, the water-flux through the CA was observed, indicating the generation of pores in the polymer. Furthermore, as the hydraulic pressure increased, the water-flux increased proportionally, indicating the possibility of control for the porosity and pore size. Surprisingly, the value above 250 LMH (L/m2h) observed at the ratio of 1:0.35 (mole ratio of CA: Cd(NO3)2·4H2O) was of higher flux than those of CA/other metal nitrate salts (Ni(NO3)2 and Mg(NO3)2) complexes. The higher value indicated that the larger and abundant pores were generated in the cellulose acetate at the same water-pressure. Thus, it could be thought that the Cd(NO3)2·4H2O salt played a role as a stronger plasticizer than the other metal nitrate salts such as Ni(NO3)2 and Mg(NO3)2. These results were attributable to the fact that the atomic radius and ionic radius of the Cd were largest among the three elements, resulting in the relatively larger Cd of the Cd(NO3)2 that could easily be dissociated into cations and NO3- ions. As a result, the free NO3- ions could be readily hydrated with water molecules, causing the plasticization effect on the chains of cellulose acetate. The coordinative interactions between the CA and Cd(NO3)2·4H2O were investigated by IR spectroscopy. The change of ionic species in Cd(NO3)2·4H2O was analyzed by Raman spectroscopy.
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Affiliation(s)
- Woong Gi Lee
- Department of Chemistry, Sangmyung University, Seoul 03016, Korea;
| | - Younghyun Cho
- Department of Energy Systems Engineering, Soonchunhyang University, Asan 31538, Korea
- Correspondence: (Y.C.); (S.W.K.); Tel./Fax: +82-2-2287-5362 (S.W.K.)
| | - Sang Wook Kang
- Department of Chemistry, Sangmyung University, Seoul 03016, Korea;
- Department of Chemistry and Energy Engineering, Sangmyung University, Seoul 03016, Korea
- Correspondence: (Y.C.); (S.W.K.); Tel./Fax: +82-2-2287-5362 (S.W.K.)
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10
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Eco-friendly process for facile pore control in thermally stable cellulose acetate utilizing zinc(II) nitrate for water-treatment. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.08.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Ali M, Ramirez P, Nasir S, Cervera J, Mafe S, Ensinger W. Ionic circuitry with nanofluidic diodes. SOFT MATTER 2019; 15:9682-9689. [PMID: 31720668 DOI: 10.1039/c9sm01654f] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ionic circuits composed of nanopores functionalized with polyelectrolyte chains can operate in aqueous solutions, thus allowing the control of electrical signals and information processing in physiological environments. We demonstrate experimentally and theoretically that different orientations of single-pore membranes with the same and opposite surface charges can operate reliably in series, parallel, and mixed series-parallel arrangements of two, three, and four nanofluidic diodes using schemes similar to those of solid-state electronics. We consider also different experimental procedures to externally tune the fixed charges of the molecular chains functionalized on the pore surface, showing that single-pore membranes can be used efficiently in ionic circuitry with distinct ionic environments.
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Affiliation(s)
- Mubarak Ali
- Dept. of Material- and Geo-Sciences, Materials Analysis, Technische Universität Darmstadt, Petersenstr. 23, D-64287 Darmstadt, Germany.
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12
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Dong Y, Cheng Y, Xu G, Cheng H, Huang K, Duan J, Mo D, Zeng J, Bai J, Sun Y, Liu J, Yao H. Selectively Enhanced Ion Transport in Graphene Oxide Membrane/PET Conical Nanopore System. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14960-14969. [PMID: 30921512 DOI: 10.1021/acsami.9b01071] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Graphene oxide (GO) has become a promising 2D material in many areas, such as gas separation, seawater desalination, antibacterial materials, and so on because of its abundant oxygen-containing functional groups and excellent dispersibility in various solvents. The graphene oxide membrane (GOM), a laminar and channel-rich structure assembled by stacked GO nanosheets, served as a kind of precise and ultrafast separation material has attracted widespread attention in membrane separation field. To break the trade-off between ion permeability and ion selectivity of separation membrane based on GOM, GOM/conical nanopore system is obtained by spin-coating ultrathin GOM on PET conical nanopore, which possesses ion rectification property. Comparing to pure PET conical nanopore, the existence of GOM not only enhances the cation conductance but also makes the ion rectification ratio increase from 4.6 to 238.0 in KCl solution. Assisted by COMSOL simulation, it is proved that the GOM can absorb large amount of cations and act as cation source to improve the ion selectivity and rectification effect of GOM/conical nanopore system. Finally, the chemical stability of GOM/conical nanopore is also investigated and the corresponding results reveal that the GOM/conical nanopore system can perform the ion rectification behavior in a wider pH range than pure PET conical nanopore. The presented findings demonstrate the great potential applications of GOM/conical nanopore system in ionic logic circuits and sensor systems.
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Affiliation(s)
- Yuhua Dong
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Yaxiong Cheng
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Guoheng Xu
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- School of Physical Science and Technology , Southwest Jiaotong University , Chengdu 610031 , China
| | - Hongwei Cheng
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Kejing Huang
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jinglai Duan
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Dan Mo
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jian Zeng
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jing Bai
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Youmei Sun
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jie Liu
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Huijun Yao
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
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13
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Ma T, Balanzat E, Janot JM, Balme S. Nanopore Functionalized by Highly Charged Hydrogels for Osmotic Energy Harvesting. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12578-12585. [PMID: 30860813 DOI: 10.1021/acsami.9b01768] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The salinity gradient between brine and fresh water is an abundant source of power which can be harvested by two major membrane methods: pressure-retarded osmosis and reversed electrodialysis. Nowadays, the latter technology is close to real application, but it still suffers from low power yield. Low membrane selectivity and complex membrane fabrication are the main limiting factors. To improve that, we design a couple of ion-selective membranes based on the track-etched polymer nanopore functionalized by highly charged hydrogels. Two nanopore geometries are compared (cylindrical and conical shape) to generate osmotic energy with gel functions and more importantly can be scaled up. Experiments from the single nanopore and multipore membrane to stacked membranes show complete characterization from ionic transportation to energy generation and a clear relationship from the single pore to stacked membranes. In the actual experiment conditions, a power density of 0.37 W m-2 at pH 7 was achieved. By improving ionic tracks and reducing intermembrane distances, it can be a good candidate for industrial applications.
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Affiliation(s)
- Tianji Ma
- Institut Européen des Membranes, UMR5635 UM ENSM CNRS , Place Eugène Bataillon , 34095 Montpellier Cedex 5 , France
| | - Emmanuel Balanzat
- Centre de Recherche sur les Ions, les Matériaux et la Photonique, UMR6252 CEA-CNRS-ENSICAEN , 6 Boulevard du Maréchal Juin , 14050 Caen Cedex 4 , France
| | - Jean-Marc Janot
- Institut Européen des Membranes, UMR5635 UM ENSM CNRS , Place Eugène Bataillon , 34095 Montpellier Cedex 5 , France
| | - Sébastien Balme
- Institut Européen des Membranes, UMR5635 UM ENSM CNRS , Place Eugène Bataillon , 34095 Montpellier Cedex 5 , France
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14
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Liu F, Wang M, Wang X, Wang P, Shen W, Ding S, Wang Y. Fabrication and application of nanoporous polymer ion-track membranes. NANOTECHNOLOGY 2019; 30:052001. [PMID: 30511655 DOI: 10.1088/1361-6528/aaed6d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
With the development of the nano-fabrication and nanofluidics, nanoporous membranes have shown great potential in applications such as molecular separation, energy conversion, and molecular sensing. However, their performance has often been limited by the trade-off between selectivity and permeability and the lack of scalability. The prospect of overcoming these problems with nanoporous polymer ion-track membranes is promising. Focusing on these membranes, this review provides a comprehensive overview of fabrication methods, including the traditional track-etching technique and the recently developed track-UV technique; characterization methods; transport mechanisms; and major properties and applications.
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Affiliation(s)
- Feng Liu
- State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, People's Republic of China. Center for Quantitative Biology, Peking University, Beijing 100871, People's Republic of China
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15
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Zhang S, Yin X, Li M, Zhang X, Zhang X, Qin X, Zhu Z, Yang S, Shao Y. Ionic Current Behaviors of Dual Nano- and Micropipettes. Anal Chem 2018; 90:8592-8599. [PMID: 29939012 DOI: 10.1021/acs.analchem.8b01765] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ionic current rectification (ICR) phenomena within dual glass pipettes are investigated for the first time. We demonstrate that the ionic flow presents different behaviors in dual nano- and micropipettes when the two channels are filled with the same electrolyte KCl and hung in air. Bare dual nanopipettes cannot rectify the ionic current because of their geometric symmetry, but the ICR can be directly observed based on bare dual micropipettes. The phenomena based on dual micropipettes could be explained by the simulation of the Poisson-Nernst-Plank equation. After modification with different approaches, the dual nanopipettes have asymmetric charge patterns and show various ICR behaviors. They have been successfully employed to fabricate various nanodevices, such as ionic diodes and bipolar junction transistors. Due to the simple and fast fabrication with high reproducibility, these dual pipettes can provide a novel platform for controlling ionic flow in nano- and microfluidics, fabrication of novel nanodevices, and detection of biomolecules.
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Affiliation(s)
- Shudong Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Xiaohong Yin
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Mingzhi Li
- 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
| | - Xin Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Xiaoli Qin
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Zhiwei Zhu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , China
| | - Shuang Yang
- 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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16
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Apel PY, Blonskaya IV, Lizunov NE, Olejniczak K, Orelovitch OL, Toimil-Molares ME, Trautmann C. Osmotic Effects in Track-Etched Nanopores. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703327. [PMID: 29573553 DOI: 10.1002/smll.201703327] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 02/05/2018] [Indexed: 06/08/2023]
Abstract
Asymmetrically etched ion-track membranes attract great interest for both fundamental and technical reasons because of a large variety of applications. So far, conductometric measurements during track etching provide only limited information about the complicated asymmetric etching process. In this paper, monitoring of osmotic phenomena is used to elucidate the initial phase of nanopore formation. It is shown that strong alkaline solutions generate a considerable osmotic flow of water through newborn conical pores. The interplay between diffusion and convection in the pore channel results in a substantially nonlinear alkali concentration gradient and a rapid change in the pore geometry after breakthrough. Similar phenomena are observed in experiments with cylindrical track-etched pores of 15-30 nm in radius. A theoretical description of the diffusion-convection processes in the pores is provided.
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Affiliation(s)
- Pavel Y Apel
- Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Joliot-Curie str. 6, 141980, Dubna, Russia
- Department of Chemistry, New Technologies and Materials, Dubna State University, Universitetskaya str. 19, 141980, Dubna, Russia
| | - Irina V Blonskaya
- Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Joliot-Curie str. 6, 141980, Dubna, Russia
| | - Nikolay E Lizunov
- Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Joliot-Curie str. 6, 141980, Dubna, Russia
| | - Katarzyna Olejniczak
- Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Joliot-Curie str. 6, 141980, Dubna, Russia
- Department of Chemistry, Nicolaus Copernicus University, Gagarina str. 7, 87-100, Torun, Poland
| | - Oleg L Orelovitch
- Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Joliot-Curie str. 6, 141980, Dubna, Russia
| | | | - Christina Trautmann
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291, Darmstadt, Germany
- Materialwissenschaft, Technische Universität Darmstadt, Alarich-Weiss-Straße 2, 64287, Darmstadt, Germany
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17
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Apel PY, Bashevoy VV, Blonskaya IV, Lizunov NE, Orelovitch OL, Trautmann C. Shedding light on the mechanism of asymmetric track etching: an interplay between latent track structure, etchant diffusion and osmotic flow. Phys Chem Chem Phys 2018; 18:25421-25433. [PMID: 27722562 DOI: 10.1039/c6cp05465j] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The method of producing single track-etched conical nanopores has received considerable attention and found many applications in diverse fields such as biosensing, nanofluidics, information processing and others. The performance of an asymmetric nanopore is largely determined by its geometry, especially by the size and shape of its tip. In this paper we reconstruct the profiles of so-called conical pores fabricated by asymmetric chemical etching of ion tracks in polymer foil. Conductometric measurements during etching and field emission scanning electron microscopy examinations of the resulting pores were employed in order to determine the pore geometry. We demonstrate that the pore constriction geometry evolves through a variety of configurations with advancing time after breakthrough. While immediately after breakthrough the pore tips are trumpet-shaped, further etching is strongly affected by osmotic effects which eventually lead to bullet-shaped pore tips. We evidence that the osmotic flow appearing during asymmetric track etching has a determinative effect on pore formation. A convection-diffusion model is presented that semi-quantitatively explains the effect of osmotic processes under asymmetric track etching conditions. In addition, a phenomenon of reagent contaminant precipitation in nanopores is reported and discussed.
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Affiliation(s)
- Pavel Y Apel
- Joint Institute for Nuclear Research, Joliot-Curie Street 6, 141980 Dubna, Russian Federation. and Dubna State University, Universitetskaya Street 19, 141980 Dubna, Russian Federation
| | - Valery V Bashevoy
- Joint Institute for Nuclear Research, Joliot-Curie Street 6, 141980 Dubna, Russian Federation.
| | - Irina V Blonskaya
- Joint Institute for Nuclear Research, Joliot-Curie Street 6, 141980 Dubna, Russian Federation.
| | - Nikolay E Lizunov
- Joint Institute for Nuclear Research, Joliot-Curie Street 6, 141980 Dubna, Russian Federation.
| | - Oleg L Orelovitch
- Joint Institute for Nuclear Research, Joliot-Curie Street 6, 141980 Dubna, Russian Federation.
| | - Christina Trautmann
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany and Materialwissenschaft, Technische Universität Darmstadt, Alarich-Weiss-Straße 2, 64287 Darmstadt, Germany
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18
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Balme S, Ma T, Balanzat E, Janot JM. Large osmotic energy harvesting from functionalized conical nanopore suitable for membrane applications. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.09.008] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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19
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Lee DS, Park S, Han YD, Lee JE, Jeong HY, Yoon HC, Jung MY, Kim SO, Choi SY. Selective protein transport through ultra-thin suspended reduced graphene oxide nanopores. NANOSCALE 2017; 9:13457-13464. [PMID: 28682407 DOI: 10.1039/c7nr01889d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The nanoporous free-standing graphene membrane is of great interest in high performance separation technology. In particular, the separation of biological molecules with similar sizes is one of the key challenges in the purification of biomaterials. Here, we report a reliable, cost-effective, and facile method for the fabrication of a graphene-based nanosieve and its application in the separation of similar-size proteins. A suspended reduced graphene oxide (rGO) nanosieve with ultra-thin, large-area, well-ordered, and dense 15 nm-sized pores was fabricated using block copolymer (BCP) lithography. The fabricated 5 nm-ultrathin nanosieve with an area of 200 μm × 200 μm (an ultra-high aspect ratio of ∼40 000) endured pressure up to 1 atm, and effectively separated hemoglobin (Hb) from a mixture of hemoglobin and immunoglobulin G (IgG), the common proteins in human blood, in a highly selective and rapid manner. The use of the suspended rGO nanosieve is expected to provide a simple and manufacturable platform for practical biomolecule separation offering high selectivity and a large throughput.
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Affiliation(s)
- Dae-Sik Lee
- Electronics and Telecommunications Research Institute (ETRI), 218 Gajeongno, Yuseong-gu, Daejeon, 34129, Republic of Korea.
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20
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Yao H, Zeng J, Zhai P, Li Z, Cheng Y, Liu J, Mo D, Duan J, Wang L, Sun Y, Liu J. Large Rectification Effect of Single Graphene Nanopore Supported by PET Membrane. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11000-11008. [PMID: 28262018 DOI: 10.1021/acsami.6b16736] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Graphene is an ideal candidate for the development of solid state nanopores due to its thickness at the atomic scale and its high chemical and mechanical stabilities. A facile method was adopted to prepare single graphene nanopore supported by PET membrane (G/PET nanopore) within the three steps assisted by the swift heavy ion irradiation and asymmetric etching technology. The inversion of the ion rectification effect was confirmed in G/PET nanopore while comparing with bare PET nanopore in KCl electrolyte solution. By modifying the wall charge state of PET conical nanopore with hydrochloric acid from negative to positive, the ion rectification effect of G/PET nanopore was found to be greatly enhanced and the large rectification ratio up to 190 was obtained during this work. Moreover, the high ionic flux and high ion separation efficiency was also observed in the G/PET nanopore system. By comparing the "on" and "off" state conductance of G/PET nanopore while immersed in the solution with pH value lower than the isoelectric point of the etched PET (IEP, pH = 3.8), the voltage dependence of the off conductance was established and it was confirmed that the large rectification effect was strongly dependent on the particularly low off conductance at higher applied voltage.
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Affiliation(s)
- Huijun Yao
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000, China
| | - Jian Zeng
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000, China
| | - Pengfei Zhai
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000, China
| | - Zongzhen Li
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Yaxiong Cheng
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Jiande Liu
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000, China
| | - Dan Mo
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000, China
| | - Jinglai Duan
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000, China
| | - Lanxi Wang
- Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics , Feiyan Street 100, Lanzhou 730000, China
| | - Youmei Sun
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000, China
| | - Jie Liu
- Institute of Modern Physics, Chinese Academy of Sciences , Lanzhou 730000, China
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21
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Apel PY, Blonskaya IV, Lizunov NE, Olejniczak K, Orelovitch OL, Sartowska BA, Dmitriev SN. Asymmetrical nanopores in track membranes: Fabrication, the effect of nanopore shape and electric charge of pore walls, promising applications. RUSS J ELECTROCHEM+ 2017. [DOI: 10.1134/s1023193517010037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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23
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Singh KP. Maximizing ion current rectification in a bipolar conical nanopore fluidic diode using optimum junction location. Phys Chem Chem Phys 2016; 18:27958-27966. [DOI: 10.1039/c6cp05280k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The optimum location of junction z0m as a function of base diameter for different surface charge densities with data from a fitted equation.
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24
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Wang C, Fu Q, Wang X, Kong D, Sheng Q, Wang Y, Chen Q, Xue J. Atomic Layer Deposition Modified Track-Etched Conical Nanochannels for Protein Sensing. Anal Chem 2015. [DOI: 10.1021/acs.analchem.5b01501] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | | | - Xinwei Wang
- School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, People’s Republic of China
| | - Delin Kong
- Laboratory
of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing 102600, People’s Republic of China
| | | | | | - Qiang Chen
- Laboratory
of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing 102600, People’s Republic of China
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25
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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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26
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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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27
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Lepoitevin M, Nguyen G, Bechelany M, Balanzat E, Janot JM, Balme S. Combining a sensor and a pH-gated nanopore based on an avidin–biotin system. Chem Commun (Camb) 2015; 51:5994-7. [DOI: 10.1039/c4cc10087e] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we propose a new approach to tailor nanopores, which combines both pH gating and sensing properties.
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Affiliation(s)
- Mathilde Lepoitevin
- Institut Européen des Membranes
- UMR5635 ENSM UM2 CNRS
- Place Eugène Bataillon
- 34095 Montpellier cedex 5
- France
| | - Gael Nguyen
- Institut Européen des Membranes
- UMR5635 ENSM UM2 CNRS
- Place Eugène Bataillon
- 34095 Montpellier cedex 5
- France
| | - Mikhael Bechelany
- Institut Européen des Membranes
- UMR5635 ENSM UM2 CNRS
- Place Eugène Bataillon
- 34095 Montpellier cedex 5
- France
| | - Emmanuel Balanzat
- Centre de recherche sur les Ions
- les Matériaux et la Photonique
- UMR6252 CEA-CNRS-ENSICAEN
- 14050 Caen Cedex 4
- France
| | - Jean-Marc Janot
- Institut Européen des Membranes
- UMR5635 ENSM UM2 CNRS
- Place Eugène Bataillon
- 34095 Montpellier cedex 5
- France
| | - Sebastien Balme
- Institut Européen des Membranes
- UMR5635 ENSM UM2 CNRS
- Place Eugène Bataillon
- 34095 Montpellier cedex 5
- France
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