pNT Cylinder (IMAGE) University of Tokyo Caption A nanometer-sized pNT cylinder made of 40 benzenes. The cylinder is tens of thousands of times thinner than a human hair. Credit (c)2018 Hiroyuki Isobe Usage Restrictions Credit (c)2018 Hiroyuki Isobe 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.