Researchers at the University of California San Diego have developed a novel graphene-mediated optical stimulation (GraMOS) technique that accelerates the maturation of human brain organoids. This cutting-edge method leverages graphene’s optoelectronic properties to convert light into electrical cues that stimulate neuron communication without genetic modification. The approach enables faster development of organoids, facilitating advanced modeling of neurodegenerative diseases such as Alzheimer’s. GraMOS promotes stronger neuronal connections and organization, offering a noninvasive path to study brain disease progression and brain-machine interfaces more effectively.