Researchers at UC San Diego have developed a novel graphene-mediated optical stimulation (GraMOS) method that accelerates the maturation of human brain organoids. This non-genetic, biocompatible technique uses graphene’s optoelectronic properties to convert light into electrical stimuli, promoting neural connectivity and advanced communication between neurons. The approach enables faster modeling of neurodegenerative diseases such as Alzheimer’s, providing more accurate and timely insights into disease progression and potential therapies.