Iontronic Neuromorphic Signaling with Conical Microfluidic Memristors.

Autor:	Kamsma TM; Institute for Theoretical Physics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, Netherlands.; Mathematical Institute, Utrecht University, Budapestlaan 6, 3584 CD Utrecht, Netherlands., Boon WQ; Institute for Theoretical Physics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, Netherlands., Ter Rele T; Institute for Theoretical Physics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, Netherlands.; Soft Condensed Matter, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 1, 3584 CC Utrecht, Netherlands., Spitoni C; Mathematical Institute, Utrecht University, Budapestlaan 6, 3584 CD Utrecht, Netherlands., van Roij R; Institute for Theoretical Physics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, Netherlands.
Jazyk:	angličtina
Zdroj:	Physical review letters [Phys Rev Lett] 2023 Jun 30; Vol. 130 (26), pp. 268401.
DOI:	10.1103/PhysRevLett.130.268401
Abstrakt:	Experiments have shown that the conductance of conical channels, filled with an aqueous electrolyte, can strongly depend on the history of the applied voltage. These channels hence have a memory and are promising elements in brain-inspired (iontronic) circuits. We show here that the memory of such channels stems from transient concentration polarization over the ionic diffusion time. We derive an analytic approximation for these dynamics which shows good agreement with full finite-element calculations. Using our analytic approximation, we propose an experimentally realizable Hodgkin-Huxley iontronic circuit where micrometer cones take on the role of sodium and potassium channels. Our proposed circuit exhibits key features of neuronal communication such as all-or-none action potentials upon a pulse stimulus and a spike train upon a sustained stimulus.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu