Graphene sensors read stroke damage from the shape of brain electrical waves
Researchers have developed graphene micro-transistor arrays capable of mapping brain electrical signals during ischemic strokes. This technology allows for real-time monitoring of tissue health and potential neuroprotective treatment responses.
Why it matters
Advancements in neuro-monitoring could significantly improve stroke treatment outcomes by providing precise data on brain tissue viability.
Researchers at the University of Manchester, the Institute of Microelectronics of Barcelona (IMB-CNM, CSIC), the Catalan Institute of Nanoscience and Nanotechnology (ICN2) and Multi Channel Systems (Germany) have used graphene micro-transistor arrays to map how brain tissue is faring during an ischemic stroke. The arrays record the slow, DC-coupled electrical signals of cortical spreading depolarizations, waves of disrupted neuronal activity that add secondary injury after a stroke. The team paired the arrays with optical imaging of cerebral blood flow and oxygenation.
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