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Nanoporous graphene-based thin-film microelectrodes for in vivo high-resolution neural recording and stimulation

Medicine and Health

Nanoporous graphene-based thin-film microelectrodes for in vivo high-resolution neural recording and stimulation

D. Viana, S. T. Walston, et al.

Discover cutting-edge advancements in flexible neural interfaces with our innovative nanoporous graphene-based technology. This groundbreaking research led by a team from the Catalan Institute of Nanoscience and Nanotechnology and other esteemed institutions demonstrates exceptional recording fidelity and biocompatibility in chronic studies.

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Playback language: English
Abstract
This work presents a nanoporous graphene-based thin-film technology engineered to create flexible neural interfaces. Small microelectrodes (25 µm diameter) with low impedance (~25 kΩ) and high charge injection (3–5 mC cm⁻²) were fabricated. In vivo tests in rodents showed high-fidelity recordings and stimulation with low current thresholds (<100 µA) and high selectivity. Chronic implantation studies validated the devices' biocompatibility.
Publisher
Nature Nanotechnology
Published On
Apr 01, 2024
Authors
Damià Viana, Steven T. Walston, Eduard Masvidal-Codina, Xavi Illa, Bruno Rodríguez-Meana, Jaume del Valle, Andrew Hayward, Abbie Dodd, Thomas Loret, Elisabet Prats-Alfonso, Natàlia de la Oliva, Marie Palma, Elena del Corro, María del Pilar Bernicola, Elisa Rodríguez-Lucas, Thomas Gener, Jose Manuel de la Cruz, Miguel Torres-Miranda, Fikret Taygun Duvan, Nicola Ria, Justin Sperling, Sara Martí-Sánchez, Maria Chiara Spadaro, Clément Hébert, Sinead Savage, Jordi Arbiol, Anton Guimerà-Brunet, M. Victoria Puig, Blaise Yvert, Xavier Navarro, Kostas Kostarelos, Jose A. Garrido
DOI
https://doi.org/10.1038/s41565-023-01570-5
Tags
nanoporous graphene
flexible neural interfaces
microelectrodes
biocompatibility
in vivo tests
stimulation
low impedance

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