1
|
Arai N, Yamamoto E, Koishi T, Hirano Y, Yasuoka K, Ebisuzaki T. Wetting hysteresis induces effective unidirectional water transport through a fluctuating nanochannel. NANOSCALE HORIZONS 2023; 8:652-661. [PMID: 36883765 DOI: 10.1039/d2nh00563h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We propose a water pump that actively transports water molecules through nanochannels. Spatially asymmetric noise fluctuations imposed on the channel radius cause unidirectional water flow without osmotic pressure, which can be attributed to hysteresis in the cyclic transition between the wetting/drying states. We show that the water transport depends on fluctuations, such as white, Brownian, and pink noises. Because of the high-frequency components in white noise, fast switching of open and closed states inhibits channel wetting. Conversely, pink and Brownian noises generate high-pass filtered net flow. Brownian fluctuation leads to a faster water transport rate, whereas pink noise has a higher capability to overcome pressure differences in the opposite direction. A trade-off relationship exists between the resonant frequency of the fluctuation and the flow amplification. The proposed pump can be considered as an analogy for the reversed Carnot cycle, which is the upper limit of the energy conversion efficiency.
Collapse
Affiliation(s)
- Noriyoshi Arai
- Department of Mechanical Engineering, Keio University, Yokohama 223-8522, Japan.
- Computational Astrophysics Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - Eiji Yamamoto
- Department of System Design Engineering, Keio University, Yokohama, 223-8522, Japan
| | - Takahiro Koishi
- Department of Applied Physics, University of Fukui, Bunkyo, Fukui 910-8507, Japan
| | - Yoshinori Hirano
- Department of Mechanical Engineering, Keio University, Yokohama 223-8522, Japan.
| | - Kenji Yasuoka
- Department of Mechanical Engineering, Keio University, Yokohama 223-8522, Japan.
| | | |
Collapse
|
2
|
Li J, Lu H, Zhou X. Electric field triggered release of gas from a quasi-one-dimensional hydrate in the carbon nanotube. NANOSCALE 2020; 12:12801-12808. [PMID: 32432277 DOI: 10.1039/d0nr01113d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We systematically investigate the effects of an axial electric field on the formation and decomposition of quasi-one-dimensional nitrogen gas hydrates within a single-walled carbon nanotube (SWNT) by using molecular dynamics (MD) simulations. We find that the nitrogen hydrate in the SWNT undergoes a series of structure phase transitions with increasing electric field. Corresponding to the structure transition, the nitrogen gas releases from the carbon nanotube in the electric field range of 1 V nm-1 to 2 V nm-1. However, nitrogen molecules are trapped as guest molecules, forming a molecule wire, in the ice nanotube when the electric field is less than 1 V nm-1 or larger than 2 V nm-1. Our simulations indicate that the nanotube is an excellent tiny gas tank that can be used to trap gas molecules and control their release triggered sensitively by electric signals. The key to this phenomenon is the change in orientations of water dipoles induced by the electric field, which leads to the structural change in the hydrogen-bonding network and the change in the diffusion coefficient of the water molecules. Our findings here may help understanding the mechanism of the electrorelease of gas from hydrates confined in the nanoscale space.
Collapse
Affiliation(s)
- Jiaxian Li
- College of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua 321004, China.
| | | | | |
Collapse
|
3
|
Su J, Zhao Y, Fang C, Bilal Ahmed S, Shi Y. Interface nanoparticle control of a nanometer water pump. Phys Chem Chem Phys 2017; 19:22406-22416. [DOI: 10.1039/c7cp03351f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nanoparticle is forced to move on a membrane surface, inducing considerable water flux through a carbon nanotube, suggesting a controllable nanometer water pump.
Collapse
Affiliation(s)
- Jiaye Su
- Department of Applied Physics
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Yunzhen Zhao
- Department of Applied Physics
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Chang Fang
- Department of Applied Physics
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Syed Bilal Ahmed
- Department of Applied Physics
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Yue Shi
- Department of Applied Physics
- Nanjing University of Science and Technology
- Nanjing
- China
| |
Collapse
|
4
|
|
5
|
Abstract
The design of a water pump, which has huge potential for applications in nanotechnology and daily life, is the dream of many scientists. In this paper, we successfully design a nanometer water pump by using molecular dynamics simulations. Ions of either sodium or chlorine in a narrow channel will generate electric current under electric fields, which then drives the water through a wider channel, similar to recent experimental setups. Considerable water flux is achieved within small field strengths that are accessible by experimentation. Of particular interest, is that for sodium the water flux increases almost linearly with field strengths; while for chlorine there exists a critical field strength, the water flux exhibits a plateau before the critical value and increases linearly after it. This result follows the behavior of ion velocity, which is related to friction behavior. We also estimate the power and energy consumption for such a pump, and compare it to the macroscopic mechanical pumps. A further comparison suggests that different ions will have different pumping abilities. This study not only provides new, significant results with possible connection to existing research, but has tremendous potential application in the design of nanofluidic devices.
Collapse
Affiliation(s)
- Jiaye Su
- Department of Applied Physics, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, People's Republic of China
| | | |
Collapse
|
6
|
Zhou X, Wu F, Liu Y, Kou J, Lu H, Lu H. Current inversions induced by resonant coupling to surface waves in a nanosized water pump. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2015; 92:053017. [PMID: 26651789 DOI: 10.1103/physreve.92.053017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Indexed: 06/05/2023]
Abstract
We conducted a molecular dynamics simulation to investigate current inversions in a nanosized water pump based on a single-walled carbon nanotube powered by mechanical vibration. It was found that the water current depended sensitively on the frequency of mechanical vibration. Especially in the resonance region, the nanoscale pump underwent reversals of the water current. This phenomenon was attributed to the dynamics competition of the water molecules in the two sections (the left and right parts) divided by the vibrating atom and the differences in phase and decay between the two mechanical waves generated by mechanical vibration and propagating in opposite directions toward the two ends of the carbon nanotube. Our findings provide an insight into water transportation through nanosized pumps and have potential in the design of high-flux nanofluidic systems and nanoscale energy converters.
Collapse
Affiliation(s)
- Xiaoyan Zhou
- Department of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China
- Department of Physics, Zhejiang Normal University, Jinhua 321004, China
| | - Fengmin Wu
- Department of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China
- Department of Physics, Zhejiang Normal University, Jinhua 321004, China
| | - Yang Liu
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Jianlong Kou
- Department of Physics, Zhejiang Normal University, Jinhua 321004, China
| | - Hui Lu
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - Hangjun Lu
- Department of Physics, Zhejiang Normal University, Jinhua 321004, China
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Illinois 60607, USA
| |
Collapse
|
7
|
Kou J, Zhou X, Chen Y, Lu H, Wu F, Fan J. Water permeation through single-layer graphyne membrane. J Chem Phys 2014; 139:064705. [PMID: 23947878 DOI: 10.1063/1.4817596] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
We report the molecular dynamics simulations of spontaneous and continuous permeation of water molecules through a single-layer graphyne-3 membrane. We found that the graphyne-3 membrane is more permeable to water molecules than (5, 5) carbon nanotube membranes of similar pore diameter. The remarkable hydraulic permeability of the single-layer graphyne-3 membrane is attributed to the hydrogen bond formation, which connects the water molecules on both sides of the monolayer graphyne-3 membrane and aids to overcome the resistance of the nanopores, and to the relatively lower energy barrier at the pore entrance. Consequently, the single-layer graphyne-3 membrane has a great potential for application as membranes for desalination of sea water, filtration of polluted water, etc.
Collapse
Affiliation(s)
- Jianlong Kou
- Institute of Condensed Matter Physics, Zhejiang Normal University, Jinhua 321004, China.
| | | | | | | | | | | |
Collapse
|
8
|
Yamamoto E, Akimoto T, Hirano Y, Yasui M, Yasuoka K. 1/ f Fluctuations of amino acids regulate water transportation in aquaporin 1. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 89:022718. [PMID: 25353519 DOI: 10.1103/physreve.89.022718] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Indexed: 06/04/2023]
Abstract
Aquaporins (AQPs), which transport water molecules across cell membranes, are involved in many physiological processes. Recently, it is reported that the water-water interactions within the channel are broken at the aromatic/arginine selectivity filter (ar/R region), which prevents proton transportation [U. K. Eriksson et al., Science 340, 1346 (2013)]. However, the effects of the conformational fluctuations of amino acids on water transportation remain unclear. Using all-atom molecular dynamics simulations, we analyze water transportation and fluctuations of amino acids within AQP1. The amino acids exhibit 1/f fluctuations, indicating possession of long-term memory. Moreover, we find that water molecules crossing the ar/R region obey a non-Poisson process. To investigate the effect of 1/f fluctuations on water transportation, we perform restrained molecular dynamics simulations of AQP1 and simple Langevin stochastic simulations. As a result, we confirm that 1/f fluctuations of amino acids contribute to water transportation in AQP1. These findings appreciably enhance our understanding of AQPs and suggest possibilities for developing biomimetic nanopores.
Collapse
Affiliation(s)
- Eiji Yamamoto
- Department of Mechanical Engineering, Keio University, Yokohama, Japan
| | - Takuma Akimoto
- Department of Mechanical Engineering, Keio University, Yokohama, Japan
| | - Yoshinori Hirano
- Department of Pharmacology, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan and Laboratory for Computational Molecular Design, Computational Biology Research Core, Quantitative Biology Center (QBiC), The Institute of Physical and Chemical Research (RIKEN), Kobe, Japan
| | - Masato Yasui
- Department of Pharmacology, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Kenji Yasuoka
- Department of Mechanical Engineering, Keio University, Yokohama, Japan
| |
Collapse
|
9
|
Zhou X, Wu F, Kou J, Nie X, Liu Y, Lu H. Vibrating-Charge-Driven Water Pump Controlled by the Deformation of the Carbon Nanotube. J Phys Chem B 2013; 117:11681-6. [DOI: 10.1021/jp405036c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoyan Zhou
- Department
of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China
- Department
of Physics, Zhejiang Normal University, Jinhua 321004, China
| | - Fengmin Wu
- Department
of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China
- Department
of Physics, Zhejiang Normal University, Jinhua 321004, China
| | - Jianlong Kou
- Department
of Physics, Zhejiang Normal University, Jinhua 321004, China
| | - Xuanchuan Nie
- Department
of Physics, Zhejiang Normal University, Jinhua 321004, China
| | - Yang Liu
- Department
of Mechanical Engineering, Hong Kong Polytechnic University, Hong Kong
| | - Hangjun Lu
- Department
of Physics, Zhejiang Normal University, Jinhua 321004, China
| |
Collapse
|
10
|
Ju SP, Lin JS, Hsieh JY, Weng MH, Chen MC. Water molecular flow control with a (5,5) nanocoil switch. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2013; 15:1889. [PMID: 24078790 PMCID: PMC3782641 DOI: 10.1007/s11051-013-1889-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 07/19/2013] [Indexed: 06/02/2023]
Abstract
Molecular dynamics simulation was employed to investigate the diffusion behaviors of water molecules within a (5,5) carbon nanocoil (CNC) at different tensile strains, the length and coil diameter of CNC are 22 and 6.83 Ǻ, respectively. Condensed-phase, optimized molecular potentials for atomistic simulation studies were employed to model the interaction between atoms. The results show that the diffusion in the axial direction can be enhanced by the tensile strain and the water molecule flow can be blocked at a higher strain once the deformed areas appear at the higher strain. Moreover, the deformed (5,5) CNC at strain of 2.8 can recover its original structure at strain of 0, indicating that the adjustment of diffusion coefficient is repeatable by applying different strains in the axial direction.
Collapse
Affiliation(s)
- Shin-Pon Ju
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung, 804 Taiwan, Republic of China
| | - Jenn-Sen Lin
- Department of Mechanical Engineering, National United University, Miao-Li, 360 Taiwan Republic of China
| | - Jin-Yuan Hsieh
- Department of Mechanical Engineering, Minghsin Institute of Technology, Hsin-Chu, 304 Taiwan Republic of China
| | - Meng-Hsiung Weng
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung, 804 Taiwan, Republic of China
| | - Ming-Chang Chen
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung, 804 Taiwan, Republic of China
| |
Collapse
|
11
|
Affiliation(s)
- Petr Král
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, USA.
| | | |
Collapse
|
12
|
Tu Y, Lu H, Zhang Y, Huynh T, Zhou R. Capability of charge signal conversion and transmission by water chains confined inside Y-shaped carbon nanotubes. J Chem Phys 2013; 138:015104. [DOI: 10.1063/1.4773221] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|