Soft Neural Interfacing based on Implantable Graphene Fiber Microelectrode Arrays

Maryam Alsadat Hejazi, Seyed Amir Seyedi, Alireza Mehdizadeh · 2023

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Description

Maryam Alsadat Hejazi and co-authors built bendy brain electrodes from graphene fibers thinner than hairs, in a 2023 study. Electrode arrays that sit in the brain can read and nudge its activity, but stiff metal hurts soft tissue. Graphene brings conductivity, flexibility, and body-friendliness. The team spun graphene fibers ten to fifty micrometers wide, mounted ten of them on a custom circuit board, and coated them for insulation, leaving the tips bare.

Microscope images checked the fiber structure, and electrical tests measured each channel's resistance to signal flow. The spacing between fibers was one hundred fifty micrometers. The method can yield arrays of any fiber size and channel count, the authors say. They pitch the soft arrays as gentler tools for neuroscience and future medical devices, where rigid probes risk damage.

Catalog record

CREATORMaryam Alsadat Hejazi, Seyed Amir Seyedi, Alireza Mehdizadeh
YEAR2023
COLLECTIONPAPERS
FORMATTXT
FILE SIZE10 KB
VERSION1.0
LICENSECC BY 4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/articles/PMC10749413

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