Highly microporous graphene-based neural electrode

Abstract

Highly microporous laser fabricated three-dimensional graphene which can be prepared from a fluorinated polyimide is disclosed as a material suitable for a neural electrode, e.g., a neural stimulation device. The three-dimensional porous graphene incorporated into the device may have a multi-scale structure, which enables electrical and charge carrying properties. In some aspects, the porous graphene incorporated into the device has the following pore structure: macropores having an average pore size exceeding 50 nm; mesopores having an average pore size of 2-50 nm; micropores having an average pore size of 2 nm or less; and nanopores having an average pore size of less than 100 nm. Neural stimulation devices and methods of using the devices are also described.

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