Flexible bidirectional graphene neural interface combines transistors and rGO electrodes
A team of researchers, led by IMB-CNM-CSIC and ICN2, has developed a graphene-based bidirectional neural interface that can simultaneously record and modulate brain activity, overcoming a longstanding limitation in neurotechnology. The device combines graphene solution-gated field-effect transistors (gSGFETs) with nanoporous reduced graphene oxide (rGO) microelectrodes in a single, flexible platform, enabling both high-sensitivity monitoring and effective stimulation.
Neural interfaces are already used clinically to treat neurological disorders, but most current systems remain unidirectional. They typically deliver stimulation using fixed parameters, without the ability to adapt in real time to ongoing brain activity. Even in systems that can both stimulate and record, performance is often constrained – particularly when it comes to detecting very low-frequency signals, which are increasingly recognized as important biomarkers. The newly reported device addresses these challenges by integrating two complementary graphene technologies.
Source: https://www.graphene-info.com/flexible-bidirectional-graphene-neural-interface-combines-transistors-and-rgo
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