Graphene Array (IMAGE) University of Pennsylvania School of Medicine Caption This image shows a 16-electrode transparent array. The inset is a closer view showing the electrode area. Fainted squares are the recording electrodes. Credit Duygu Kuzum and Euijae Shim, University of Pennsylvania Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.