In-vivo integration of soft neural probes through high-resolution printing of liquid electronics on the cranium.
Nat Commun
; 15(1): 1772, 2024 Feb 27.
Article
em En
| MEDLINE
| ID: mdl-38413568
ABSTRACT
Current soft neural probes are still operated by bulky, rigid electronics mounted to a body, which deteriorate the integrity of the device to biological systems and restrict the free behavior of a subject. We report a soft, conformable neural interface system that can monitor the single-unit activities of neurons with long-term stability. The system implements soft neural probes in the brain, and their subsidiary electronics which are directly printed on the cranial surface. The high-resolution printing of liquid metals forms soft neural probes with a cellular-scale diameter and adaptable lengths. Also, the printing of liquid metal-based circuits and interconnections along the curvature of the cranium enables the conformal integration of electronics to the body, and the cranial circuit delivers neural signals to a smartphone wirelessly. In the in-vivo studies using mice, the system demonstrates long-term recording (33 weeks) of neural activities in arbitrary brain regions. In T-maze behavioral tests, the system shows the behavior-induced activation of neurons in multiple brain regions.
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1
Base de dados:
MEDLINE
Assunto principal:
Eletrônica
/
Neurônios
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article