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Jahinge TL, Payne MK, Unruh DK, Jayasinghe AS, Yu P, Forbes TZ. Characterization of Water Structure and Phase Behavior within Metal-Organic Nanotubes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:18899-18908. [PMID: 38081592 PMCID: PMC10753883 DOI: 10.1021/acs.langmuir.3c02786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/22/2023] [Accepted: 11/29/2023] [Indexed: 12/27/2023]
Abstract
Water behavior under nanoconfinement varies significantly from that in the bulk but also depends on the nature of the pore walls. Hybrid compound offers the ideal system to explore water behavior in complex materials, so a model metal-organic nanotube (UMONT) material was utilized to explore the behavior of water between 100 and 293 K. Single-crystal X-ray and neutron diffraction revealed the formation of a filled Ice-I arrangement that was previously predicted to only occur under high pressures. 17O NMR spectra suggest that the onset of melting for the water in the UMONT channels occurs at 98 K and the presence of ice-like water up to 293 K, indicating that the complete ice-water transition does not occur before dehydration of the material. Overall, the water behavior differs significantly from hydrophobic single-walled carbon nanotubes indicating precise control over water can be achieved through rational design of hybrid materials.
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Affiliation(s)
- Tiron
H. L. Jahinge
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Maurice K. Payne
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Daniel K. Unruh
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Ashini S. Jayasinghe
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Ping Yu
- Nuclear
Magnetic Resonance Facility, University
of California, Davis, Davis, California 95616, United States
| | - Tori Z. Forbes
- Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
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2
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Applegate L, Samarasiri VS, Leddy J, Forbes TZ. Impacts of Surface Adsorption on Water Uptake within a Metal Organic Nanotube Material. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:14025-14035. [PMID: 36343277 PMCID: PMC9686127 DOI: 10.1021/acs.langmuir.2c01124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 10/25/2022] [Indexed: 06/16/2023]
Abstract
The confinement-dependent properties of solvents, particularly water, within nanoporous spaces impart unique physical and chemical behavior compared to those of the bulk. This has previously been demonstrated for a U(VI)-based metal organic nanotube that displays ice-like arrays of water molecules within the 1-D pore space and complete selectivity to H2O over all other solvents and isotopologues. Based upon our previous work on D2O and HTO adsorption processes, we suggested that the water uptake was controlled by a two-step process: (1) surface adsorption via hydrogen bonding to hydrophilic amine and carboxylic groups and (2) diffusion of the water into the hydrophobic 1-D nanochannels. The current study seeks to evaluate this hypothesis and expand our existing kinetic model for the water diffusion step to account for the initial surface adsorption process. Vapor sorption experiments, paired with thermogravimetric and Fourier-transform infrared analyses, yielded uptake data that were fit using a Langmuir model for the surface-adsorption step of the mechanism. The water adsorption curve was designated a type IV Brunauer-Emmett-Teller isotherm, which indicated that our original hypothesis was correct. Additional work with binary solvent systems enabled us to evaluate the uptake in a range of conditions and determine that the uptake is not controlled by the vapor pressure but is instead completely dependent on the relative humidity of the system.
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3
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Fardis M, Karagianni M, Gkoura L, Papavassiliou G. Self-Diffusion in Confined Water: A Comparison between the Dynamics of Supercooled Water in Hydrophobic Carbon Nanotubes and Hydrophilic Porous Silica. Int J Mol Sci 2022; 23:ijms232214432. [PMID: 36430907 PMCID: PMC9697084 DOI: 10.3390/ijms232214432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Confined liquids are model systems for the study of the metastable supercooled state, especially for bulk water, in which the onset of crystallization below 230 K hinders the application of experimental techniques. Nevertheless, in addition to suppressing crystallization, confinement at the nanoscale drastically alters the properties of water. Evidently, the behavior of confined water depends critically on the nature of the confining environment and the interactions of confined water molecules with the confining matrix. A comparative study of the dynamics of water under hydrophobic and hydrophilic confinement could therefore help to clarify the underlying interactions. As we demonstrate in this work using a few representative results from the relevant literature, the accurate assessment of the translational mobility of water molecules, especially in the supercooled state, can unmistakably distinguish between the hydrophilic and hydrophobic nature of the confining environments. Among the numerous experimental methods currently available, we selected nuclear magnetic resonance (NMR) in a field gradient, which directly measures the macroscopic translational self-diffusion coefficient, and quasi-elastic neutron scattering (QENS), which can determine the microscopic translational dynamics of the water molecules. Dielectric relaxation, which probes the re-orientational degrees of freedom, are also discussed.
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4
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Makayeva N, Yergaziyeva G, Anisova M, Shaimerden Z, Dossumov K. Effect of the interaction of components in a nickel-molybdenum catalyst on its activity in decomposition of methane to hydrogen. CHEMICAL BULLETIN OF KAZAKH NATIONAL UNIVERSITY 2022. [DOI: 10.15328/cb1281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
This work is devoted to the study of the activity of monometallic (Fe/Al2O3) and bimetallic (Fe-Mo/Al2O3) catalysts supported to carrier γ- Al2O3. It has been discovered that the bimetallic catalyst is more active than the monometallic catalyst in the methane decomposition reaction. The results of the influence of molybdenum oxide on the activity of Fe/Al2O3 catalyst in the methane decomposition reaction in the temperature range 500-850°C have been obtained. It has been determined that the addition of molybdenum oxide in the amount of 5 wt. % of the iron catalyst composition leads to an increase in the catalytic activity of the sample in the reaction of methanedecomposition to hydrogen at relatively low temperatures. Compared to Fe/Al2O3 on the FeMo/Al2O3 catalyst at a reaction temperature of 750°C, methane conversionincreases from 8% to 98%, hydrogen yield from 5% to 57%.
The increased field of activity Fe-Mo/Al2O3catalyst in the decomposition of methane to hydrogen compared to Fe/Al2O3 catalysts is due to an increase in the dispersity of the active phases of the catalyst, as well as the formation of an easily reduced Fe2(MоО4)3 phase, according to XRD, TPR-H2, and BET methods.
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5
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Chhetri KB, Dasgupta C, Maiti PK. Diameter Dependent Melting and Softening of dsDNA Under Cylindrical Confinement. Front Chem 2022; 10:879746. [PMID: 35586267 PMCID: PMC9108266 DOI: 10.3389/fchem.2022.879746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 04/08/2022] [Indexed: 11/13/2022] Open
Abstract
Carbon nanotubes (CNTs) are considered promising candidates for biomolecular confinement, including DNA encapsulation for gene delivery. Threshold values of diameters have been reported for double-stranded DNA (dsDNA) encapsulation inside CNTs. We have performed all-atom molecular dynamics (MD) simulations of dsDNAs confined inside single-walled CNTs (SWCNTs) at the physiologically relevant temperature of 300 K. We found that the dsDNA can be confined without being denatured only when the diameter of the SWCNT exceeds a threshold value. Below this threshold diameter, the dsDNA gets denatured and melts even at the temperature of 300 K. Our simulations using SWCNTs with chirality indices (20,20) to (30,30) at 300 K found the critical diameter to be 3.25 nm (corresponding to (24,24) chirality). Analyses of the hydrogen bonds (H-bonds), Van der Walls (VdW) energy, and other inter-base interactions show drastic reduction in the number of H-bonds, VdW energy, and electrostatic energies between the bases of dsDNA when it is confined in narrower SWCNTs (up to diameter of 3.12 nm). On the other hand, the higher interaction energy between the dsDNA and the SWCNT surface in narrower SWCNTs assists in the melting of the dsDNA. Electrostatic mapping and hydration status analyses show that the dsDNA is not adequately hydrated and the counter ion distribution is not uniform below the critical diameter of the SWCNT. As properly hydrated counter ions provide stability to the dsDNA, we infer that the inappropriate hydration of counter ions and their non-uniform distribution around the dsDNA cause the melting of the dsDNA inside SWCNTs of diameter below the critical value of 3.25 nm. For confined dsDNAs that do not get denatured, we computed their elastic properties. The persistence length of dsDNA was found to increase by a factor of about two and the torsional stiffness by a factor of 1.5 for confinement inside SWCNTs of diameters up to 3.79 nm, the stretch modulus also following nearly the same trend. Interestingly, for higher diameters of SWCNT, 3.79 nm and above, the dsDNA becomes more flexible, demonstrating that the mechanical properties of the dsDNA under cylindrical confinement depend non-monotonically on the confinement diameter.
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Affiliation(s)
- Khadka B. Chhetri
- Center for Condensed Matter Theory, Department of Physics, Indian Institute of Science, Bangalore, India
- Department of Physics, Prithvinarayan Campus, Tribhuvan University, Pokhara, Nepal
| | - Chandan Dasgupta
- Center for Condensed Matter Theory, Department of Physics, Indian Institute of Science, Bangalore, India
| | - Prabal K. Maiti
- Center for Condensed Matter Theory, Department of Physics, Indian Institute of Science, Bangalore, India
- *Correspondence: Prabal K. Maiti,
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6
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Mejri A, Mazouzi K, Herlem G, Picaud F, Hennequin T, Palmeri J, Manghi M. Molecular dynamics investigations of ionic conductance at the nanoscale: Role of the water model and geometric parameters. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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de Lima LS, Mortari MR. Therapeutic nanoparticles in the brain: A review of types, physicochemical properties and challenges. Int J Pharm 2022; 612:121367. [PMID: 34896565 DOI: 10.1016/j.ijpharm.2021.121367] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 11/25/2021] [Accepted: 12/06/2021] [Indexed: 12/18/2022]
Abstract
One of the main obstacles in the treatment of neurological diseases, perhaps the biggest one, is the delivery of therapeutic compounds to the central nervous system, and nanoparticles are promising tools to overcome this challenge. Different types of nanoparticles may be used as delivery systems, including liposomes, carbon nanotubes, and dendrimers. Nevertheless, these nanoparticles must display characteristics to be useful in brain drug delivery, such as stability, permeability to blood vessels, biocompatibility, and specificity. All of these aspects are intrinsically related to the physicochemical properties of nanoformulations: size, composition, electric charge, hydrophobicity, mucoadherence, permeability to the blood-brain barrier, and many others. Furthermore, there are challenging hindrances involved in the development and application of nanoparticles - hence the importance of studying and understanding these pharmaceutical tools.
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Affiliation(s)
- Larissa Silva de Lima
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, Campus Universitário Darcy Ribeiro, University of Brasilia, 70910-900 Brasilia, Distrito Federal, Brazil
| | - Márcia Renata Mortari
- Laboratory of Neuropharmacology, Department of Physiological Sciences, Institute of Biological Sciences, Campus Universitário Darcy Ribeiro, University of Brasilia, 70910-900 Brasilia, Distrito Federal, Brazil.
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8
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Martinez Jimenez M, Avila A, de Barros A, Lopez EO, Alvarez F, Riul A, Perez-Taborda JA. Polyethyleneimine-Functionalized Carbon Nanotube/Graphene Oxide Composite: A Novel Sensing Platform for Pb(II) Acetate in Aqueous Solution. ACS OMEGA 2021; 6:18190-18199. [PMID: 34308050 PMCID: PMC8296609 DOI: 10.1021/acsomega.1c02085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/03/2021] [Indexed: 05/03/2023]
Abstract
Heavy metal pollution is posing a severe health risk on living organisms. Therefore, significant research efforts are focused on their detection. Here, we developed a sensing platform sensor for the selective detection of lead(II) acetate. The sensor is based on self-assembled polyethyleneimine-functionalized carbon nanotubes (PEI-CNTs) and graphene oxide films deposited onto gold interdigitated electrodes. The graphene-based nanostructure showed a resistive behavior, and the fabricated layer-by-layer film was used to detect Pb(II) acetate in an aqueous solution by comparison of three electrochemical methods: impedance spectroscopy, amperometry, and potentiometry stripping analysis. The results obtained from different methods show that the detection limit was down to 36 pmol/L and the sensitivity up to 4.3 μAL/μmol, with excellent repeatability. The detection mechanism was associated with the high affinity of heavy metal ions with the functional groups present in the PEI-CNTs and GO, allowing high performance and sensitivity. The achieved results are important for the research toward integrated monitoring and sensing platforms for Pb(II) contamination in drinking water.
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Affiliation(s)
- Mawin
J. Martinez Jimenez
- Colombian
Society of Engineering Physics (SCIF), Pereira 660003, Colombia
- Department
of Applied Physics, “Gleb Wataghin” Institute of Physics, University of Campinas—UNICAMP, Campinas 13083-970, São Paulo, Brazil
| | - Alba Avila
- Centro
de Microelectrónica (CMUA), Departamento de Ingeniería
Eléctrica y Electrónica, Universidad
de los Andes, Bogotá 111711, Colombia
| | - Anerise de Barros
- Laboratory
of Functional Materials, Institute of Chemistry, University of Campinas—UNICAMP, P.O. Box 6154, Campinas 13083-970, São Paulo, Brazil
| | - Elvis Oswaldo Lopez
- Department
of Experimental Low Energy Physics, Brazilian
Center for Research in Physics (CBPF), Rua Dr. Xavier Sigaud 150, Rio de Janeiro 22290-180, Brazil
| | - Fernando Alvarez
- Department
of Applied Physics, “Gleb Wataghin” Institute of Physics, University of Campinas—UNICAMP, Campinas 13083-970, São Paulo, Brazil
| | - Antonio Riul
- Department
of Applied Physics, “Gleb Wataghin” Institute of Physics, University of Campinas—UNICAMP, Campinas 13083-970, São Paulo, Brazil
| | - Jaime Andres Perez-Taborda
- Colombian
Society of Engineering Physics (SCIF), Pereira 660003, Colombia
- Centro
de Microelectrónica (CMUA), Departamento de Ingeniería
Eléctrica y Electrónica, Universidad
de los Andes, Bogotá 111711, Colombia
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9
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Muñoz-Santiburcio D, Marx D. Confinement-Controlled Aqueous Chemistry within Nanometric Slit Pores. Chem Rev 2021; 121:6293-6320. [PMID: 34006106 DOI: 10.1021/acs.chemrev.0c01292] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In this Focus Review, we put the spotlight on very recent insights into the fascinating world of wet chemistry in the realm offered by nanoconfinement of water in mechanically rather rigid and chemically inert planar slit pores wherein only monolayer and bilayer water lamellae can be hosted. We review the effect of confinement on different aspects such as hydrogen bonding, ion diffusion, and charge defect migration of H+(aq) and OH-(aq) in nanoconfined water depending on slit pore width. A particular focus is put on the strongly modulated local dielectric properties as quantified in terms of anisotropic polarization fluctuations across such extremely confined water films and their putative effects on chemical reactions therein. The stunning findings disclosed only recently extend wet chemistry in particular and solvation science in general toward extreme molecular confinement conditions.
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Affiliation(s)
- Daniel Muñoz-Santiburcio
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany.,CIC nanoGUNE BRTA, Tolosa Hiribidea 76, 20018 San Sebastián, Spain
| | - Dominik Marx
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
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10
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Faucher S, Kuehne M, Koman VB, Northrup N, Kozawa D, Yuan Z, Li SX, Zeng Y, Ichihara T, Misra RP, Aluru N, Blankschtein D, Strano MS. Diameter Dependence of Water Filling in Lithographically Segmented Isolated Carbon Nanotubes. ACS NANO 2021; 15:2778-2790. [PMID: 33512159 DOI: 10.1021/acsnano.0c08634] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Although the structure and properties of water under conditions of extreme confinement are fundamentally important for a variety of applications, they remain poorly understood, especially for dimensions less than 2 nm. This problem is confounded by the difficulty in controlling surface roughness and dimensionality in fabricated nanochannels, contributing to a dearth of experimental platforms capable of carrying out the necessary precision measurements. In this work, we utilize an experimental platform based on the interior of lithographically segmented, isolated single-walled carbon nanotubes to study water under extreme nanoscale confinement. This platform generates multiple copies of nanotubes with identical chirality, of diameters from 0.8 to 2.5 nm and lengths spanning 6 to 160 μm, that can be studied individually in real time before and after opening, exposure to water, and subsequent water filling. We demonstrate that, under controlled conditions, the diameter-dependent blue shift of the Raman radial breathing mode (RBM) between 1 and 8 cm-1 measures an increase in the interior mechanical modulus associated with liquid water filling, with no response from exterior water exposure. The observed RBM shift with filling demonstrates a non-monotonic trend with diameter, supporting the assignment of a minimum of 1.81 ± 0.09 cm-1 at 0.93 ± 0.08 nm with a nearly linear increase at larger diameters. We find that a simple hard-sphere model of water in the confined nanotube interior describes key features of the diameter-dependent modulus change of the carbon nanotube and supports previous observations in the literature. Longer segments of 160 μm show partial filling from their ends, consistent with pore clogging. These devices provide an opportunity to study fluid behavior under extreme confinement with high precision and repeatability.
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Affiliation(s)
- Samuel Faucher
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Matthias Kuehne
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Volodymyr B Koman
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Natalie Northrup
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Daichi Kozawa
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Zhe Yuan
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Sylvia Xin Li
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Yuwen Zeng
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Takeo Ichihara
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Rahul Prasanna Misra
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Narayana Aluru
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Daniel Blankschtein
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Michael S Strano
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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11
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Mejri A, Herlem G, Picaud F. From Behavior of Water on Hydrophobic Graphene Surfaces to Ultra-Confinement of Water in Carbon Nanotubes. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:306. [PMID: 33504024 PMCID: PMC7911377 DOI: 10.3390/nano11020306] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 11/16/2022]
Abstract
In recent years and with the achievement of nanotechnologies, the development of experiments based on carbon nanotubes has allowed to increase the ionic permeability and/or selectivity in nanodevices. However, this new technology opens the way to many questionable observations, to which theoretical work can answer using several approximations. One of them concerns the appearance of a negative charge on the carbon surface, when the latter is apparently neutral. Using first-principles density functional theory combined with molecular dynamics, we develop here several simulations on different systems in order to understand the reactivity of the carbon surface in low or ultra-high confinement. According to our calculations, there is high affinity of the carbon atom to the hydrogen ion in every situation, and to a lesser extent for the hydroxyl ion. The latter can only occur when the first hydrogen attack has been achieved. As a consequence, the functionalization of the carbon surface in the presence of an aqueous medium is activated by its protonation, then allowing the reactivity of the anion.
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Affiliation(s)
| | | | - Fabien Picaud
- Laboratoire de Nanomédecine, Imagerie et Thérapeutiques, EA4662, UFR Sciences et Techniques, Centre Hospitalier Universitaire et Université de Bourgogne Franche Comté, 16 Route de Gray, 25030 Besançon, France; (A.M.); (G.H.)
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12
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Nanomechanics of graphene oxide-bacteriophage based self-assembled porous composites. Sci Rep 2020; 10:15618. [PMID: 32973218 PMCID: PMC7515913 DOI: 10.1038/s41598-020-72372-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 08/24/2020] [Indexed: 12/22/2022] Open
Abstract
Graphene oxide, integrated with the filamentous bacteriophage M13, forms a 3D large-scale multifunctional porous structure by self-assembly, with considerable potential for applications. We performed Raman spectroscopy under pressure on this porous composite to understand its fundamental mechanics. The results show that at low applied pressure, the \documentclass[12pt]{minimal}
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\begin{document}$$sp^2$$\end{document}sp2 bonds of graphene oxide stiffen very little with increasing pressure, suggesting a complicated behaviour of water intercalated between the graphene layers. The key message of this paper is that water in a confined space can have a significant impact on the nanostructure that hosts it. We introduced carbon nanotubes during the self-assembly of graphene oxide and M13, and a similar porous macro-structure was observed. However, in the presence of carbon nanotubes, pressure is transmitted to the \documentclass[12pt]{minimal}
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\begin{document}$$sp^2$$\end{document}sp2 bonds of graphene oxide straightforwardly as in graphite. The electrical conductivity of the composite containing carbon nanotubes is improved by about 30 times at a bias voltage of 10 V. This observation suggests that the porous structure has potential in applications where good electrical conductivity is desired, such as sensors and batteries.
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13
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M Rajanna P, Luchkin S, Larionov KV, Grebenko A, Popov ZI, Sorokin PB, Danilson M, Bereznev S, Lund PD, Nasibulin AG. Adhesion of Single-Walled Carbon Nanotube Thin Films with Different Materials. J Phys Chem Lett 2020; 11:504-509. [PMID: 31892279 DOI: 10.1021/acs.jpclett.9b03552] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Single-walled carbon nanotubes (SWCNTs) possess extraordinary physical and chemical properties. Thin films of randomly oriented SWCNTs have great potential in many opto-electro-mechanical applications. However, good adhesion of SWCNT films with a substrate material is pivotal for their practical use. Here, for the first time, we systematically investigate the adhesion properties of SWCNT thin films with commonly used substrates such as glass (SiO2), indium tin oxide (ITO), crystalline silicon (C-Si), amorphous silicon (a-Si:H), zirconium oxide (ZrO2), platinum (Pt), polydimethylsiloxane (PDMS), and SWCNTs for self-adhesion using atomic force microscopy. By comparing the results obtained in air and inert Ar atmospheres, we observed that the surface state of the materials greatly contributes to their adhesion properties. We found that the SWCNT thin films have stronger adhesion in an inert atmosphere. The adhesion in the air can be greatly improved by a fluorination process. Experimental and theoretical analyses suggest that adhesion depends on the atmospheric conditions and surface functionalization.
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Affiliation(s)
- Pramod M Rajanna
- Skolkovo Institute of Science and Technology , Nobel Street 3 , Moscow 121205 , Russia
- Aalto University , P.O. Box 15100, FI-00076 Espoo , Finland
| | - Sergey Luchkin
- Skolkovo Institute of Science and Technology , Nobel Street 3 , Moscow 121205 , Russia
| | - Konstantin V Larionov
- National University of Science and Technology MISIS , 4 Leninskiy Prospekt , Moscow 119049 , Russia
- Technological Institute for Superhard and Novel Carbon Materials , 7a Centralnaya Street, Troitsk , Moscow 108840 , Russia
- Moscow Institute of Physics and Technology , Institute Lane 9 , Dolgoprudniy 141701 , Moscow District , Russia
| | - Artem Grebenko
- Skolkovo Institute of Science and Technology , Nobel Street 3 , Moscow 121205 , Russia
- Moscow Institute of Physics and Technology , Institute Lane 9 , Dolgoprudniy 141701 , Moscow District , Russia
| | - Zakhar I Popov
- National University of Science and Technology MISIS , 4 Leninskiy Prospekt , Moscow 119049 , Russia
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences , 4 Kosygina strasse , Moscow 119334 , Russia
| | - Pavel B Sorokin
- National University of Science and Technology MISIS , 4 Leninskiy Prospekt , Moscow 119049 , Russia
- Technological Institute for Superhard and Novel Carbon Materials , 7a Centralnaya Street, Troitsk , Moscow 108840 , Russia
- Moscow Institute of Physics and Technology , Institute Lane 9 , Dolgoprudniy 141701 , Moscow District , Russia
| | - Mati Danilson
- Tallinn University of Technology , Department of Materials and Environmental Technology , Ehitajate tee 5 , 19086 Tallinn , Estonia
| | - Sergei Bereznev
- Tallinn University of Technology , Department of Materials and Environmental Technology , Ehitajate tee 5 , 19086 Tallinn , Estonia
| | - Peter D Lund
- Aalto University , P.O. Box 15100, FI-00076 Espoo , Finland
| | - Albert G Nasibulin
- Skolkovo Institute of Science and Technology , Nobel Street 3 , Moscow 121205 , Russia
- Aalto University , P.O. Box 15100, FI-00076 Espoo , Finland
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14
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Applegate LC, Forbes TZ. Controlling water structure and behavior: design principles from metal organic nanotubular materials. CrystEngComm 2020. [DOI: 10.1039/d0ce00331j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water exhibits unique and unexpected behavioral and structural changes when confined to the nanoscale, notably within the pores of metal–organic nanotubes.
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15
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Parmentier A, Maccarini M, De Francesco A, Scaccia L, Rogati G, Czakkel O, De Luca F. Neutron spin echo monitoring of segmental-like diffusion of water confined in the cores of carbon nanotubes. Phys Chem Chem Phys 2019; 21:21456-21463. [PMID: 31535109 DOI: 10.1039/c9cp04248b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Following the stream of increasing scientific interest in condensed-matter systems under ultra-hydrophobic confinement, the present work reports the first incoherent neutron spin echo assessment of the dynamics of water axially confined inside single-wall carbon nanotubes of diameter d∼ 1.4 nm. At the time scale of nanoseconds, two water populations are retrieved, whose relative proportion matches the one expected for a concentric shell + chain arrangement with cylindrical symmetry. The time dependence of the mean square displacement related to the external component is found to be subdiffusive, with peculiar resemblance to segmental diffusion typical of entangled polymeric systems.
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Affiliation(s)
| | - Marco Maccarini
- Universitè Grenoble Alpes, Lab. TIMC/IMAG CNRS UMR 5525, La Tronche, 38700, France.
| | - Alessio De Francesco
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali, Operative Group in Grenoble (OGG), c/o Institut Laue Langevin, Grenoble, France
| | - Luisa Scaccia
- University of Macerata, Dept. of Economics and Law, 62100 Macerata, Italy
| | - Giovanna Rogati
- Sapienza University of Rome, Dept. of Physics, Rome, 00185, Italy
| | - Orsolya Czakkel
- Institut Laue-Langevin, CS 20156, 38042 Grenoble cedex 9, France
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Druchok M, Lukšič M. Carboxylated carbon nanotubes can serve as pathways for molecules in sandwich-like two-phase organic-water systems. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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17
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Li S, Schmidt B. Replica exchange MD simulations of two-dimensional water in graphene nanocapillaries: rhombic versus square structures, proton ordering, and phase transitions. Phys Chem Chem Phys 2019; 21:17640-17654. [PMID: 31364628 DOI: 10.1039/c9cp00849g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydrogen bond patterns, proton ordering, and phase transitions of monolayer ice in two-dimensional hydrophobic confinement are fundamentally different from those found for bulk ice. To investigate the behavior of quasi-2D ice, we perform molecular dynamics simulations of water confined between fixed graphene plates at a distance of 0.65 nm. While experimental results are still limited and theoretical investigations are often based on a single, often empirically based force field model, this work presents a systematic study modeling the water-graphene interaction by effective Lennard-Jones potentials previously derived from high-level ab initio CCSD(T) calculations of water adsorbed on graphene [Phys. Chem. Chem. Phys., 2013, 15, 4995]. For the water-water interaction different water force fields, i.e. SPCE, TIP3P, TIP4P, TIP4P/ICE, and TIP5P, are used. The water occupancy of the graphene capillary at a pressure of 1000 MPa is determined to be between 13.5 and 13.9 water molecules per square nanometer, depending on the choice of the water force field. Based on these densities, we explore the structure and dynamics of quasi-2D water for temperatures ranging from 200 K to about 600 K for each of the five force fields. To ensure complete sampling of the configurational space and to overcome the barriers separating metastable structures, these simulations are based on the replica exchange molecular dynamics technique. We report different tetragonal hydrogen bond patterns, which are classified as nearly square or as rhombic. While many of these arrangements are essentially flat, in some cases puckered arrangements are found, too. Also the proton ordering of the quasi-2D water structures is considered, allowing us to identify them as ferroelectric, ferrielectric or antiferroelectric. For temperatures between 200 K and 400 K we find several second-order phase transitions from one ice structure to another, changing in many cases both the arrangements of the oxygen atoms and the proton ordering. For temperatures between 400 K and 600 K there are melting-like transitions from a monolayer of ice to a monolayer of liquid water. These first-order phase transitions have a latent heat between 3.4 and 4.0 kJ mol-1. Both the values of the transition temperatures and of the latent heats display considerable model dependence for the five different water models investigated here.
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Affiliation(s)
- Shujuan Li
- Institute for Mathematics, Freie Universität Berlin, Arnimallee 6, D-14195 Berlin, Germany.
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Ohata Y, Kamebuchi H, Watanabe K, Kouchi T, Suzuki Y, Imaizumi T, Sugaya T, Mizuno M, Tadokoro M. Slow Dynamics of Premelting Water Molecules Confined in a Hydrophilic Nanoporous Space. ChemistrySelect 2019. [DOI: 10.1002/slct.201901733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuki Ohata
- Department of ChemistryFaculty of ScienceTokyo University of Science Kagurazaka1-3, Shinjuku-ku Tokyo 1628601 Japan
| | - Hajime Kamebuchi
- Department of ChemistryFaculty of ScienceTokyo University of Science Kagurazaka1-3, Shinjuku-ku Tokyo 1628601 Japan
| | - Keisuke Watanabe
- Department of Chemistry, Faculty of ScienceFukuoka University Nanakuma 8–19-1, Jyonann-ku Fukuoka 814-0180 Japan
| | - Takaya Kouchi
- Department of ChemistryFaculty of ScienceTokyo University of Science Kagurazaka1-3, Shinjuku-ku Tokyo 1628601 Japan
| | - You Suzuki
- Department of ChemistryFaculty of ScienceTokyo University of Science Kagurazaka1-3, Shinjuku-ku Tokyo 1628601 Japan
| | - Taku Imaizumi
- Department of ChemistryFaculty of ScienceTokyo University of Science Kagurazaka1-3, Shinjuku-ku Tokyo 1628601 Japan
| | - Tomoaki Sugaya
- Education Center, Faculty of EngineeringChiba Institute of Technology Shibazono 2–1-1, Narashino Chiba 275-0023 Japan
| | - Motohiro Mizuno
- Graduate School of Natural Science and TechnologyKanazawa University, Kakuma-machi Kanazawa 920-1192 Japan
| | - Makoto Tadokoro
- Department of ChemistryFaculty of ScienceTokyo University of Science Kagurazaka1-3, Shinjuku-ku Tokyo 1628601 Japan
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Ohata Y, Kouchi T, Sugaya T, Kamebuchi H, Tadokoro M. Dynamic Water Nanotube Cluster Stabilized in Molecule-Based Hydrophilic Nanoporous Crystal with New Organic Spacers. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180376] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yuki Ohata
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Takaya Kouchi
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Tomoaki Sugaya
- Education Center, Faculty of Engineering, Chiba Institute of Technology, 2-1-1 Shibazono, Narashino, Chiba 275-0023, Japan
| | - Hajime Kamebuchi
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Makoto Tadokoro
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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21
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Carbon Nanotubes (CNTs) in Asphalt Binder: Homogeneous Dispersion and Performance Enhancement. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8122651] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Conventional binders cannot meet the current performance requirements of asphaltic pavements due to increase in traffic volumes and loads. Nanomaterials, due to their exceptional mechanical properties, are gaining popularity as bitumen modifiers to enhance the performance properties of the asphaltic concrete. Carbon Nanotubes (CNTs) are one of the most widely used nanomaterials because of their strength properties, light weight, small size, and large surface area. CNT addition results in improved substrate characteristics as compared to other modifiers. Due to high length to diameter ratio, dispersion of CNTs in bitumen is a complex phenomenon. In this study, dispersion of CNTs in bitumen was carried out using both dry and wet mixing techniques, the latter was selected on the basis of homogeneity of the resultant asphalt mixture. Scanning Electron Microscopy (SEM) was used to check the dispersion of CNTs in binder while Fourier Transform Infrared Spectroscopy (FTIR) was carried out to ensure the removal of solvent used for wet mixing. Conventional bitumen tests (penetration, softening point, and ductility), dynamic shear rheometer tests, rolling bottle tests, and bitumen bond strength tests were employed to check the improvement in the rheological and adhesion properties of bitumen while wheel tracker test was used to check the improvement in resistance against permanent deformation of asphalt mixtures after addition of CNTs. Results show that CNTs improved the higher temperature performance and permanent deformation resistance in both binder and mixtures. Improvement in bitumen–aggregate adhesion properties and moisture resistance was also observed.
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Druchok M, Lukšič M. Carboxylated carbon nanotubes corked with tetraalkylammonium cations: A concept of nanocarriers in aqueous solutions. J Mol Liq 2018; 270:203-211. [PMID: 30906092 PMCID: PMC6425971 DOI: 10.1016/j.molliq.2017.11.107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An explicit water molecular dynamics simulations were used to probe (6,6) and (9,9) single-walled carbon nanotubes, functionalized with three carboxylate ion groups at each of the two openings, as potential nanocarriers in aqueous solutions. Three tetraalkylammonium cations (i.e., tetraethyl-, tetrapropyl-, and tetrabuthylammonium) were tested as corks to cap the nanotube openings. The variation of the sizes of the nanotubes (diameter) and of the cork cations (bulkiness) allowed us to select the proper corks that fit the nanotube openings best. Smaller tetraalkylammonium ions could easily fit the openings, but since they are less hydrophobic compared to their larger analogues they showed less affinity for the interior of the nanotubes. On the other hand, the hydrophobicity (and thus the affinity for the nanotubes) can be adjusted through the increase of tetraalkylammonium cation size, providing that the cork still fits the opening. Additionally, an external electric field was tested as a means of nanotube uncorking. The field is capable of disjoining corked ions from the functionalized nanotube openings, triggering in this way a potential cargo release stored inside the nanotubes.
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Affiliation(s)
- M Druchok
- Institute for Condensed Matter Physics, 1 Svientsitskii Str., 79011 Lviv, Ukraine
| | - M Lukšič
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Veˇna pot 113, SI-1000 Ljubljana, Slovenia
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23
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Kaneko T. Elevation/depression mechanism of freezing points of liquid confined in slit nanopores. MOLECULAR SIMULATION 2017. [DOI: 10.1080/08927022.2017.1350785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Toshihiro Kaneko
- Department of Mechanical Engineering, Tokyo University of Science, Noda, Japan
- Research Institute for Science and Technology (RIST), Tokyo University of Science, Noda, Japan
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Kyakuno H, Matsuda K, Nakai Y, Ichimura R, Saito T, Miyata Y, Hata K, Maniwa Y. Rotational dynamics and dynamical transition of water inside hydrophobic pores of carbon nanotubes. Sci Rep 2017; 7:14834. [PMID: 29093483 PMCID: PMC5666012 DOI: 10.1038/s41598-017-13704-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 09/29/2017] [Indexed: 11/10/2022] Open
Abstract
Water in a nanoconfined geometry has attracted great interest from the viewpoint of not only basic science but also nanofluidic applications. Here, the rotational dynamics of water inside single-walled carbon nanotubes (SWCNTs) with mean diameters larger than ca. 1.4 nm were investigated systematically using 2H nuclear magnetic resonance spectroscopy with high-purity SWCNTs and molecular dynamics calculations. The results were compared with those for hydrophilic pores. It was found that faster water dynamics could be achieved by increasing the hydrophobicity of the pore walls and decreasing the pore diameters. These results suggest a strategy that paves the way for emerging high-performance filtration/separation devices. Upon cooling below 220 K, it was found that water undergoes a transition from fast to slow dynamics states. These results strongly suggest that the observed transition is linked to a liquid-liquid crossover or transition proposed in a two-liquid states scenario for bulk water.
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Affiliation(s)
- Haruka Kyakuno
- Department of Physics, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, 192-0397, Japan. .,Institute of Physics, Faculty of Engineering, Kanagawa University, Yokohama, 221-8686, Japan.
| | - Kazuyuki Matsuda
- Institute of Physics, Faculty of Engineering, Kanagawa University, Yokohama, 221-8686, Japan
| | - Yusuke Nakai
- Department of Physics, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, 192-0397, Japan
| | - Ryota Ichimura
- Department of Physics, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, 192-0397, Japan
| | - Takeshi Saito
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8565, Japan
| | - Yasumitsu Miyata
- Department of Physics, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, 192-0397, Japan.,JST, CREST, Kawaguchi, 332-0012, Japan
| | - Kenji Hata
- CNT-application Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8565, Japan
| | - Yutaka Maniwa
- Department of Physics, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, 192-0397, Japan.
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