He received a Ph.D. in Biomedical Engineering from the Georgia Institute of Technology in 2005, followed by postdoctoral fellowships in Neuroengineering at Georgia Tech and at the Center for Brain Injury & Repair at Penn. Dr. Cullen’s research program operates at the intersection of Neural Engineering and Neurotrauma. He is a leader in neural tissue engineering repair strategies, having pioneered novel “living scaffolds” for neuroregeneration, micro-tissue engineering to restore brain circuitry and biohybrid neuroprosthetic interfaces.