Researchers at UC San Diego have developed a novel graphene-mediated optical stimulation (GraMOS) technique to accelerate the maturation of human brain organoids. Utilizing graphene's unique optoelectronic properties, the method converts light into electrical cues promoting neuron connectivity and network development without genetic modification. This advancement enhances modeling of age-related neurodegenerative diseases, including Alzheimer's, by enabling more rapid and physiologically relevant neural tissue development in vitro. The approach avoids invasive interventions and shows promise for broad applications in neuroscience research.