1
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Niu Y, Ma Y, Xie Y. Soft Memristor at a Microbubble Interface. NANO LETTERS 2024; 24:10475-10481. [PMID: 39116301 DOI: 10.1021/acs.nanolett.4c02136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
Memristors show promising features for neuromorphic computing. Here we report a soft memristor based on the liquid-vapor surface of a microbubble. The thickness of the liquid film was modulated by electrostatic and interfacial forces, enabling resistance switches. We found a pinched current hysteresis at scanning periods between 1.6 and 51.2 s, while representing a resistor below 1.6 s and a diode-like behavior above 51.2 s. We approximate the thickening/thinning dynamics of liquid film by pressure-driven flow at the interface and derived the impacts of salt concentration and voltage amplitude on the memory effects. Our work opens a new approach to building nanofluidic memristors by a soft interface, which may be useful for new types of neuromorphic computing in the future.
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Affiliation(s)
- Yueke Niu
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Yu Ma
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Yanbo Xie
- National Key Laboratory of Aircraft Configuration Design, School of Aeronautics and Institute of Extreme Mechanics, Northwestern Polytechnical University, Xi'an, 710072, China
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2
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Zhang Z, Sabbagh B, Chen Y, Yossifon G. Geometrically Scalable Iontronic Memristors: Employing Bipolar Polyelectrolyte Gels for Neuromorphic Systems. ACS NANO 2024; 18:15025-15034. [PMID: 38804641 PMCID: PMC11171754 DOI: 10.1021/acsnano.4c01730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 05/04/2024] [Accepted: 05/10/2024] [Indexed: 05/29/2024]
Abstract
Iontronics that are capable of mimicking the functionality of biological systems within an artificial fluidic network have long been pursued for biomedical applications and ion-based intelligence systems. Here, we report on facile and robust realization of iontronic bipolar memristors featuring a three-layer polyelectrolyte gel structure. Significant memristive hysteresis of ion currents was successfully accomplished, and the memory time proved geometrically scalable from 200 to 4000 s. These characteristics were enabled by the ion concentration polarization-induced rectification ratio within the polyelectrolyte gels. The memristors exhibited memory dynamics akin to those observed in unipolar devices, while the bipolar structure notably enabled prolonged memory time and enhanced the ion conductance switching ratio with mesoscale (10-1000 μm) geometry precision. These properties endow the devices with the capability of effective neuromorphic processing with pulse-based input voltage signals. Owing to their simple fabrication process and superior memristive performance, the presented iontronic bipolar memristors are versatile and can be easily integrated into small-scale iontronic circuits, thereby facilitating advanced neuromorphic computing functionalities.
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Affiliation(s)
- Zhenyu Zhang
- School
of Mechanical Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
- Jiangsu
Key Laboratory for Design and Manufacture of Micro-Nano Biomedical
Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211189, China
| | - Barak Sabbagh
- School
of Mechanical Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
- Faculty
of Mechanical Engineering, Technion−Israel
Institute of Technology, Haifa 3200003, Israel
| | - Yunfei Chen
- Jiangsu
Key Laboratory for Design and Manufacture of Micro-Nano Biomedical
Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211189, China
| | - Gilad Yossifon
- School
of Mechanical Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
- Department
of Biomedical Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
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3
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Li P, Liu J, Yuan JH, Guo Y, Wang S, Zhang P, Wang W. Artificial Funnel Nanochannel Device Emulates Synaptic Behavior. NANO LETTERS 2024; 24:6192-6200. [PMID: 38666542 DOI: 10.1021/acs.nanolett.3c05079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
Creating artificial synapses that can interact with biological neural systems is critical for developing advanced intelligent systems. However, there are still many difficulties, including device morphology and fluid selection. Based on Micro-Electro-Mechanical System technologies, we utilized two immiscible electrolytes to form a liquid/liquid interface at the tip of a funnel nanochannel, effectively enabling a wafer-level fabrication, interactions between multiple information carriers, and electron-to-chemical signal transitions. The distinctive ionic transport properties successfully achieved a hysteresis in ionic transport, resulting in adjustable multistage conductance gradient and synaptic functions. Notably, the device is similar to biological systems in terms of structure and signal carriers, especially for the low operating voltage (200 mV), which matches the biological neural potential (∼110 mV). This work lays the foundation for realizing the function of iontronics neuromorphic computing at ultralow operating voltages and in-memory computing, which can break the limits of information barriers for brain-machine interfaces.
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Affiliation(s)
- Peiyue Li
- School of Integrated Circuits, Peking University, Beijing 100871, People's Republic of China
| | - Junjie Liu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Jun-Hui Yuan
- School of Science, Wuhan University of Technology, Wuhan 430070, People's Republic of China
| | - Yechang Guo
- School of Integrated Circuits, Peking University, Beijing 100871, People's Republic of China
| | - Shaofeng Wang
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, People's Republic of China
| | - Pan Zhang
- School of Integrated Circuits, Peking University, Beijing 100871, People's Republic of China
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Beijing 100871, People's Republic of China
| | - Wei Wang
- School of Integrated Circuits, Peking University, Beijing 100871, People's Republic of China
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Beijing 100871, People's Republic of China
- Beijing Advanced Innovation Center for Integrated Circuits, Beijing 100871, People's Republic of China
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4
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Bisquert J, Roldán JB, Miranda E. Hysteresis in memristors produces conduction inductance and conduction capacitance effects. Phys Chem Chem Phys 2024; 26:13804-13813. [PMID: 38655741 PMCID: PMC11078199 DOI: 10.1039/d4cp00586d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024]
Abstract
Memristors are devices in which the conductance state can be alternately switched between a high and a low value by means of a voltage scan. In general, systems involving a chemical inductor mechanism as solar cells, asymmetric nanopores in electrochemical cells, transistors, and solid state memristive devices, exhibit a current increase and decrease over time that generates hysteresis. By performing small signal ac impedance spectroscopy, we show that memristors, or any other system with hysteresis relying on the conductance modulation effect, display intrinsic dynamic inductor-like and capacitance-like behaviours in specific input voltage ranges. Both the conduction inductance and the conduction capacitance originate in the same delayed conduction process linked to the memristor dynamics and not in electromagnetic or polarization effects. A simple memristor model reproduces the main features of the transition from capacitive to inductive impedance spectroscopy spectra, which causes a nonzero crossing of current-voltage curves.
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Affiliation(s)
- Juan Bisquert
- Institute of Advanced Materials (INAM), Universitat Jaume I, 12006 Castelló, Spain.
| | - Juan B Roldán
- Departamento de Electrónica y Tecnología de Computadores, Universidad de Granada, Facultad de Ciencias, Avd. Fuentenueva s/n, 18071 Granada, Spain
| | - Enrique Miranda
- Dept. Enginyeria Electrònica, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
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5
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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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6
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Emmerich T, Teng Y, Ronceray N, Lopriore E, Chiesa R, Chernev A, Artemov V, Di Ventra M, Kis A, Radenovic A. Nanofluidic logic with mechano-ionic memristive switches. NATURE ELECTRONICS 2024; 7:271-278. [PMID: 38681725 PMCID: PMC11045460 DOI: 10.1038/s41928-024-01137-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 02/21/2024] [Indexed: 05/01/2024]
Abstract
Neuromorphic systems are typically based on nanoscale electronic devices, but nature relies on ions for energy-efficient information processing. Nanofluidic memristive devices could thus potentially be used to construct electrolytic computers that mimic the brain down to its basic principles of operation. Here we report a nanofluidic device that is designed for circuit-scale in-memory processing. The device, which is fabricated using a scalable process, combines single-digit nanometric confinement and large entrance asymmetry and operates on the second timescale with a conductance ratio in the range of 9 to 60. In operando optical microscopy shows that the memory capabilities are due to the reversible formation of liquid blisters that modulate the conductance of the device. We use these mechano-ionic memristive switches to assemble logic circuits composed of two interactive devices and an ohmic resistor.
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Affiliation(s)
- Theo Emmerich
- Laboratory of Nanoscale Biology, Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
| | - Yunfei Teng
- Laboratory of Nanoscale Biology, Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
- NCCR Bio-Inspired Materials, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
| | - Nathan Ronceray
- Laboratory of Nanoscale Biology, Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
| | - Edoardo Lopriore
- Laboratory of Nanoscale Electronics and Structures, Institute of Electrical and Microengineering & Institute of Materials Science and Engineering, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
| | - Riccardo Chiesa
- Laboratory of Nanoscale Electronics and Structures, Institute of Electrical and Microengineering & Institute of Materials Science and Engineering, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
| | - Andrey Chernev
- Laboratory of Nanoscale Biology, Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
| | - Vasily Artemov
- Laboratory of Nanoscale Biology, Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
| | | | - Andras Kis
- Laboratory of Nanoscale Electronics and Structures, Institute of Electrical and Microengineering & Institute of Materials Science and Engineering, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
| | - Aleksandra Radenovic
- Laboratory of Nanoscale Biology, Institute of Bioengineering, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
- NCCR Bio-Inspired Materials, Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
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7
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Noh Y, Smolyanitsky A. Memristive Response and Capacitive Spiking in Aqueous Ion Transport through Two-Dimensional Nanopore Arrays. J Phys Chem Lett 2024; 15:665-670. [PMID: 38206569 PMCID: PMC10947333 DOI: 10.1021/acs.jpclett.3c03156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
In living organisms, information is processed in interconnected symphonies of ionic currents spiking through protein ion channels. As a result of dynamic switching of their conductive states, ion channels exhibit a variety of current-voltage nonlinearities and memory effects. Fueled by the promise of computing architectures entirely different from von Neumann, recent attempts to identify and harness similar phenomena in artificial nanofluidic environments focused on demonstrating analogue circuit elements with memory. Here we explore aqueous ionic transport through two-dimensional (2D) membranes featuring arrays of ion-trapping crown-ether-like pores. We demonstrate that for aqueous salts featuring ions with different ion-pore binding affinities, memristive effects emerge through coupling between the time-delayed state of the system and its transport properties. We also demonstrate a nanopore array that behaves as a capacitor with a strain-tunable built-in barrier, yielding behaviors ranging from current spiking to an ohmic response. By focusing on the illustrative underlying mechanisms, we demonstrate that realistically observable memory effects may be achieved in nanofluidic systems featuring crown-porous 2D membranes.
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Affiliation(s)
- Yechan Noh
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, 80305, Colorado, United States
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, 94720, California, United States
| | - Alex Smolyanitsky
- Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, 80305, Colorado, United States
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8
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Shi D, Wang W, Liang Y, Duan L, Du G, Xie Y. Ultralow Energy Consumption Angstrom-Fluidic Memristor. NANO LETTERS 2023; 23:11662-11668. [PMID: 38064458 DOI: 10.1021/acs.nanolett.3c03518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
The emergence of nanofluidic memristors has made a giant leap to mimic the neuromorphic functions of biological neurons. Here, we report neuromorphic signaling using Angstrom-scale funnel-shaped channels with poly-l-lysine (PLL) assembled at nano-openings. We found frequency-dependent current-voltage characteristics under sweeping voltage, which represents a diode in low frequencies, but it showed pinched current hysteresis as frequency increases. The current hysteresis is strongly dependent on pH values but weakly dependent on salt concentration. We attributed the current hysteresis to the entropy barrier of PLL molecules entering and exiting the Angstrom channels, resulting in reversible voltage-gated open-close state transitions. We successfully emulated the synaptic adaptation of Hebbian learning using voltage spikes and obtained a minimum energy consumption of 2-23 fJ in each spike per channel. Our findings pave a new way to mimic neuronal functions by Angstrom channels in low energy consumption.
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Affiliation(s)
- Deli Shi
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Wenhui Wang
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Yizheng Liang
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Libing Duan
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710129, 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, 710129, China
- School of Aeronautics and Institute of Extreme Mechanics, Northwestern Polytechnical University, Xi'an, 710072, China
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9
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Ramirez P, Gómez V, Cervera J, Mafe S, Bisquert J. Synaptical Tunability of Multipore Nanofluidic Memristors. J Phys Chem Lett 2023:10930-10934. [PMID: 38033300 DOI: 10.1021/acs.jpclett.3c02796] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
We demonstrate a multipore nanofluidic memristor with conical pores showcasing a wide range of hysteresis and memristor properties that provide functionalities for brainlike computation in neuromorphic applications. Leveraging the interplay between the charged functional groups on the pore surfaces and the confined ionic solution, the memristor characteristics are modulated through the electrolyte type, ionic concentrations, and pH levels of the aqueous solution. The multipore membrane mimics the functional characteristics of biological ion channels and displays synaptical potentiation and depression. Furthermore, this property can be inverted in polarity by chemically varying the pH level. The ability to modulate memory effects by ionic conductivity holds promise for enhancing signal information processing capabilities.
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Affiliation(s)
- Patricio Ramirez
- Dept. de Física Aplicada, Universitat Politècnica de València, E-46022 València, Spain
| | - Vicente Gómez
- Dept. de Física Aplicada, Universitat Politècnica de València, E-46022 València, Spain
| | - Javier Cervera
- Dept. de Física de la Terra i Termodinàmica, Universitat de València, E-46100 Burjassot, Spain
| | - Salvador Mafe
- Dept. de Física Aplicada, Universitat Politècnica de València, E-46022 València, Spain
- Dept. de Física de la Terra i Termodinàmica, Universitat de València, E-46100 Burjassot, Spain
| | - Juan Bisquert
- Institute of Advanced Materials (INAM), Universitat Jaume I, 12006 Castelló, Spain
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10
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Desai TR, Kundale SS, Dongale TD, Gurnani C. Evaluation of Cellulose–MXene Composite Hydrogel Based Bio-Resistive Random Access Memory Material as Mimics for Biological Synapses. ACS APPLIED BIO MATERIALS 2023; 6:1763-1773. [PMID: 36976913 DOI: 10.1021/acsabm.2c01073] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
We report a memory device based on organic-inorganic hybrid cellulose-Ti3C2TX MXene composite hydrogel (CMCH) as a switching layer sandwiched between Ag top and FTO bottom electrodes. The device (Ag/CMCH/FTO) was fabricated by a simple, solution-processed route and exhibits reliable and reproducible bipolar resistive switching. Multilevel switching behavior was observed at low operating voltages (±0.5 to ±1 V). Furthermore, the capacitive-coupled memristive characteristics of the device were corroborated with electrochemical impedance spectroscopy and this affirmed the filamentary conduction switching mechanism (LRS-HRS). The synaptic functions of the CMCH-based memory device were evaluated, wherein potentiation/depression properties over 8 × 103 electric pulses were observed. The device also exhibited spike time-dependent plasticity-based symmetric Hebbian learning rule of a biological synapse. This hybrid hydrogel is expected to be a potential switching material for low-cost, sustainable, and biocompatible memory storage devices and artificial synaptic applications.
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11
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Hou Y, Ling Y, Wang Y, Wang M, Chen Y, Li X, Hou X. Learning from the Brain: Bioinspired Nanofluidics. J Phys Chem Lett 2023; 14:2891-2900. [PMID: 36927003 DOI: 10.1021/acs.jpclett.2c03930] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The human brain completes intelligent behaviors such as the generation, transmission, and storage of neural signals by regulating the ionic conductivity of ion channels in neuron cells, which provides new inspiration for the development of ion-based brain-like intelligence. Against the backdrop of the gradual maturity of neuroscience, computer science, and micronano materials science, bioinspired nanofluidic iontronics, as an emerging interdisciplinary subject that focuses on the regulation of ionic conductivity of nanofluidic systems to realize brain-like functionalities, has attracted the attention of many researchers. This Perspective provides brief background information and the state-of-the-art progress of nanofluidic intelligent systems. Two main categories are included: nanofluidic transistors and nanofluidic memristors. The prospects of nanofluidic iontronics' interdisciplinary progress in future artificial intelligence fields such as neuromorphic computing or brain-computer interfaces are discussed. This Perspective aims to give readers a clear understanding of the concepts and prospects of this emerging interdisciplinary field.
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Affiliation(s)
- Yaqi Hou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China
| | - Yixin Ling
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yanqiong Wang
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China
| | - Miao Wang
- Institute of Artificial Intelligence, Xiamen University, Xiamen 361005, China
- College of Materials, Xiamen University, Xiamen 361005, China
| | - Yeyun Chen
- Institute of Artificial Intelligence, Xiamen University, Xiamen 361005, China
| | - Xipeng Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Binzhou Institute of Technology, Binzhou, 256600, China
| | - Xu Hou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Jiujiang Research Institute, College of Physical Science and Technology, Xiamen University, Xiamen 361005, China
- Institute of Artificial Intelligence, Xiamen University, Xiamen 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361102, China
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12
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Robin P, Emmerich T, Ismail A, Niguès A, You Y, Nam GH, Keerthi A, Siria A, Geim AK, Radha B, Bocquet L. Long-term memory and synapse-like dynamics in two-dimensional nanofluidic channels. Science 2023; 379:161-167. [PMID: 36634187 DOI: 10.1126/science.adc9931] [Citation(s) in RCA: 57] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Fine-tuned ion transport across nanoscale pores is key to many biological processes, including neurotransmission. Recent advances have enabled the confinement of water and ions to two dimensions, unveiling transport properties inaccessible at larger scales and triggering hopes of reproducing the ionic machinery of biological systems. Here we report experiments demonstrating the emergence of memory in the transport of aqueous electrolytes across (sub)nanoscale channels. We unveil two types of nanofluidic memristors depending on channel material and confinement, with memory ranging from minutes to hours. We explain how large time scales could emerge from interfacial processes such as ionic self-assembly or surface adsorption. Such behavior allowed us to implement Hebbian learning with nanofluidic systems. This result lays the foundation for biomimetic computations on aqueous electrolytic chips.
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Affiliation(s)
- P Robin
- Laboratoire de Physique de l'Ecole normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, Paris, France
| | - T Emmerich
- Laboratoire de Physique de l'Ecole normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, Paris, France
| | - A Ismail
- National Graphene Institute, The University of Manchester, Manchester, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, UK
| | - A Niguès
- Laboratoire de Physique de l'Ecole normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, Paris, France
| | - Y You
- National Graphene Institute, The University of Manchester, Manchester, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, UK
| | - G-H Nam
- National Graphene Institute, The University of Manchester, Manchester, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, UK
| | - A Keerthi
- National Graphene Institute, The University of Manchester, Manchester, UK.,Department of Chemistry, The University of Manchester, Manchester, UK
| | - A Siria
- Laboratoire de Physique de l'Ecole normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, Paris, France
| | - A K Geim
- National Graphene Institute, The University of Manchester, Manchester, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, UK
| | - B Radha
- National Graphene Institute, The University of Manchester, Manchester, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, UK
| | - L Bocquet
- Laboratoire de Physique de l'Ecole normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, Paris, France
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13
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Xie B, Xiong T, Li W, Gao T, Zong J, Liu Y, Yu P. Perspective on Nanofluidic Memristors: from Mechanism to Application. Chem Asian J 2022; 17:e202200682. [PMID: 35994236 DOI: 10.1002/asia.202200682] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/19/2022] [Indexed: 11/11/2022]
Abstract
Nanofluidic memristors are memory resistors based on nanoconfined fluidic systems exhibiting history-dependent ion conductivity. Toward establishing powerful computing systems beyond the Harvard architecture, these ion-based neuromorphic devices attracted enormous research attention owing to the unique characteristics of ion-based conductors. However, the design of nanofluidic memristor is still at a primary state and a systematic guidance on the rational design of nanofluidic system is desperately required for the development of nanofluidic-based neuromorphic devices. Herein, we proposed a systematic review on the history, main mechanism and potential application of nanofluidic memristors in order to give a prospective view on the design principle of memristors based on nanofluidic systems. Furthermore, based on the present status of these devices, some fundamental challenges for this promising area were further discussed to show the possible application of these ion-based devices.
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Affiliation(s)
- Boyang Xie
- Chinese Academy of Sciences, Institute of Chemistry, No.2, 1st North Street, Zhongguancun, Beijing, China, 100190, Beijing, CHINA
| | - Tianyi Xiong
- Chinese Academy of Sciences, Institute of Chemistry, No.2, 1st North Street, Zhongguancun, Beijing, China, 100190, Beijing, CHINA
| | - Weiqi Li
- Chinese Academy of Sciences, Institute of Chemistry, No.2, 1st North Street Zhongguancun, Beijing, China, 100190, Beijing, CHINA
| | - Tienan Gao
- Chinese Academy of Sciences, Institute of Chemistry, No.2, 1st North Street Zhongguancun, Beijing, China, 100190, Beijing, CHINA
| | - Jianwei Zong
- Chinese Academy of Sciences, Institute of Chemistry, No.2, 1st North Street Zhongguancun, Beijing, 100190, Beijing, CHINA
| | - Ying Liu
- Chinese Academy of Sciences, Institute of Chemistry, No.2, 1st North Street Zhongguancun, Beijing, China, 100190, CHINA
| | - Ping Yu
- Chinese Academy of Sciences, Institute of Chemistry, North first street No. 2, zhonguancun, 100190, Beijing, CHINA
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14
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Zhiyue M, Xichen Y, Li R, Yang Y, Huicheng F, Peng S. Recent advances in paper-based preconcentrators by utilizing ion concentration polarization. Electrophoresis 2021; 42:1340-1351. [PMID: 33768593 DOI: 10.1002/elps.202000291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 02/26/2021] [Accepted: 03/15/2021] [Indexed: 11/09/2022]
Abstract
One of the most cited limitations of biochemical detection is its poor sensitivity, owing to the relatively high complexity of micro-samples. Moreover, some samples cannot be easily self-replicated and their abundance cannot be increased through traditional technologies. Therefore, the preconcentration of low-abundance samples is a key requirement for microfluidic biological analysis. In recent years, the ion-concentration polarization phenomenon has aroused widespread interest in the application of microfluidic technology. In addition, paper-based materials are readily available, easy to modify, and exhibit good hydrophilicity. The study of the ion-concentration polarization preconcentration of micro-samples in paper-based microfluidic chips is of considerable significance. In this review, we discuss the development and applications of ion-concentration polarization paper-based preconcentrator in the past 5 years, with emphasis on key progresses in chip fabrication and performance optimization under different conditions. The current needs and development prospects in this field have also been discussed.
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Affiliation(s)
- Meng Zhiyue
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, P. R. China.,Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an, P. R. China
| | - Yuan Xichen
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, P. R. China.,Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, P. R. China.,Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an, P. R. China.,Yangtze River Delta Research Institute of Northwestern Polytechnical University, Taicang, P. R. China
| | - Ren Li
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, P. R. China.,Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, P. R. China.,Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an, P. R. China
| | - Yang Yang
- Ministry of Education Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing, P. R. China
| | - Feng Huicheng
- Unmanned System Research Institute, Northwestern Polytechnical University, Xi'an, P. R. China.,MOE Key Laboratory of Micro and Nano Systems for Aerospace, Northwestern Polytechnical University, Xi'an, P. R. China
| | - Shang Peng
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, P. R. China.,Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, P. R. China.,Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environment Biophysics, Northwestern Polytechnical University, Xi'an, P. R. China
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15
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Leong IW, Tsutsui M, Murayama S, Hayashida T, He Y, Taniguchi M. Quasi-Stable Salt Gradient and Resistive Switching in Solid-State Nanopores. ACS APPLIED MATERIALS & INTERFACES 2020; 12:52175-52181. [PMID: 33151677 DOI: 10.1021/acsami.0c15538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Understanding and control of ion transport in a fluidic channel is of crucial importance for iontronics. The present study reports on quasi-stable ionic current characteristics in a SiNx nanopore under a salinity gradient. An intriguing interplay between electro-osmotic flow and local ion density distributions in a solid-state pore is found to induce highly asymmetric ion transport to negative differential resistance behavior under a 100-fold difference in the cross-membrane salt concentrations. Meanwhile, a subtle change in the salinity gradient profile led to observations of resistive switching. This peculiar characteristic was suggested to stem from quasi-stable local ion density around the channel that can be switched between two distinct states via the electro-osmotic flow under voltage control. The present findings may be useful for neuromorphic devices based on micro- and nanofluidic channels.
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Affiliation(s)
- Iat Wai Leong
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Makusu Tsutsui
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Sanae Murayama
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Tomoki Hayashida
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Yuhui He
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Masateru Taniguchi
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
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