BBB Model: Cylindrical Channels (IMAGE) Istituto Italiano di Tecnologia - IIT Caption This is a scanning electron microscopy (SEM) image of the tubular scaffold, made of 50 parallel cylindrical channels. Credit IIT-Istituto Italiano di Tecnologia Usage Restrictions use with the appropriate caption and credits 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.