Nanowires on rat brain (IMAGE) Johns Hopkins University Caption Gold nanowire array on a rat brain. Credit Kam Sang Kwok and Soo Jin Choi, Gracias Lab/Johns Hopkins University. Usage Restrictions none License Original 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.