We show that ionic conduction properties of a multipore nanofluidic memristor can be controlled not only by the amplitude and frequency of an external driving signal but also by chemical gating based on the electrolyte concentration, presence of divalent and trivalent cations, and multi-ionic systems in single and mixed electrolytes. In addition, we describe the modulation of current rectification and hysteresis phenomena, together with neuromorphic conductance responses to voltage pulses, in symmetric and asymmetric external solutions. In our case, memristor conical pores act as nanofluidic diodes modulated by ionic solution characteristics due to the surface charge-regulated ionic transport. The above facts suggest potential sensing and actuating applications based on the conversion between ionic and electronic signals in bioelectrochemical hybrid circuits.
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28 January 2024
Research Article|
January 23 2024
Neuromorphic responses of nanofluidic memristors in symmetric and asymmetric ionic solutions
Patricio Ramirez
;
Patricio Ramirez
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Resources, Supervision, Visualization, Writing – original draft, Writing – review & editing)
1
Dept. de Física Aplicada, Universitat Politècnica de València
, E-46022 València, Spain
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Sergio Portillo;
Sergio Portillo
(Data curation, Formal analysis, Investigation, Methodology, Resources, Visualization, Writing – review & editing)
2
Dept. de Física de la Terra i Termodinàmica, Universitat de València
, E-46100 Burjassot, Spain
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Javier Cervera
;
Javier Cervera
a)
(Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Writing – review & editing)
2
Dept. de Física de la Terra i Termodinàmica, Universitat de València
, E-46100 Burjassot, Spain
a)Author to whom correspondence should be addressed: [email protected]
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Saima Nasir;
Saima Nasir
(Investigation, Methodology, Resources, Writing – review & editing)
3
Dept. of Material- and Geo-Sciences, Technische Universität Darmstadt
, D-64287 Darmstadt, Germany
4
Materials Research Dept., GSI Helmholtzzentrum für Schwerionenforschung
, D-64291 Darmstadt, Germany
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Mubarak Ali
;
Mubarak Ali
(Investigation, Methodology, Resources, Validation, Writing – review & editing)
3
Dept. of Material- and Geo-Sciences, Technische Universität Darmstadt
, D-64287 Darmstadt, Germany
4
Materials Research Dept., GSI Helmholtzzentrum für Schwerionenforschung
, D-64291 Darmstadt, Germany
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Wolfgang Ensinger
;
Wolfgang Ensinger
(Funding acquisition, Resources, Supervision, Writing – review & editing)
4
Materials Research Dept., GSI Helmholtzzentrum für Schwerionenforschung
, D-64291 Darmstadt, Germany
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Salvador Mafe
Salvador Mafe
(Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Supervision, Writing – original draft, Writing – review & editing)
2
Dept. de Física de la Terra i Termodinàmica, Universitat de València
, E-46100 Burjassot, Spain
5
Allen Discovery Center at Tufts University
, Medford, Massachusetts 02155, USA
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a)Author to whom correspondence should be addressed: [email protected]
J. Chem. Phys. 160, 044701 (2024)
Article history
Received:
November 25 2023
Accepted:
January 02 2024
Citation
Patricio Ramirez, Sergio Portillo, Javier Cervera, Saima Nasir, Mubarak Ali, Wolfgang Ensinger, Salvador Mafe; Neuromorphic responses of nanofluidic memristors in symmetric and asymmetric ionic solutions. J. Chem. Phys. 28 January 2024; 160 (4): 044701. https://doi.org/10.1063/5.0188940
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