Neural probes with high spatial resolution are needed for both recording and stimulating specific functional areas of the brain. Now, researchers from the Graphene Flagship have developed a new device for recording brain activity in high resolution while maintaining excellent signal to noise ratio (SNR). Based on graphene field-effect transistors, the flexible devices open up new possibilities for the development of functional implants and interfaces.

The Graphene Flagship's Biomedical Technologies Work Package explores the use of graphene and related materials in biomedical implant devices such as neural implants for recording and stimulating electrical activity, and targeted drug delivery. Graphene's biocompatibility, chemical stability and flexibility – alongside its excellent electrical properties – make it attractive for use in medical devices.