Northwestern Engineers Print Neurons That Talk to Brains

Northwestern University engineers have successfully printed artificial neurons using flexible, low-cost electronic inks ^[1]. These synthetic devices generate realistic electrical signals that can activate living neurons in mouse brain tissue ^[1][2]. The study was published in the journal Nature Nanotechnology on April 15, 2026 ^[1]. The artificial neurons provide a new way to bridge the gap between electronics and biology ^[2]. Researchers suggest this technology could lead to advanced brain-machine interfaces ^[3]. It may also help create energy-efficient computing hardware that mimics the human brain's natural efficiency ^[1].