Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
DOI: https://doi.org/10.29363/nanoge.matsus.2024.307
Publication date: 18th December 2023
Future brain-computer interfaces will necessitate electronic circuits capable of processing signals in a localized and highly individualized manner within the nervous system and other living tissues. However, traditional neuromorphic implementations based on silicon have limitations in bio-integration due to poor biocompatibility, circuit complexity, and low energy efficiency. Organic mixed ionic-electronic conductors (OMIECs) are an emerging technology that has the potential to overcome these limitations. OMIECs enable efficient signal transduction by tightly coupling ions and electrons, making them ideal for interfacing electronics with biological systems. Here, we explore the use of OMIECs to develop organic electrochemical neurons and synapses that can be modulated using different types of chemical signals. These soft and flexible organic electrochemical neurons and synapses operate at low voltage and respond to multiple stimuli, signaling a new era for printed organic electronics [1]. We will discuss their ease of integration with biological nerves [2] and demonstrate the potential for OMIECs to enable highly localized and precise signal processing in brain-computer interfaces.
[1] P. C. Harikesh, C.-Y. Yang, D. Tu, J. Y. Gerasimov, A. M. Dar, A. Armada-Moreira, M. Massetti, R. Kroon, D. Bliman, R. Olsson, E. Stavrinidou, M. Berggren, S. Fabiano, Nat. Commun. 13, 901 (2022).
[2] P. C. Harikesh, C.-Y. Yang, H.-Y. Wu, S. Zhang, M. J. Donahue, A. S. Caravaca, J. D. Huang, P. S. Olofsson, M. Berggren, D. Tu, S. Fabiano, Nat. Mater. 22, 242 (2023).
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