Nanomaterial in tube form (IMAGE) Emory Health Sciences Caption Fluorescent micrograph in scrolled form. The white scale bar is 4 micrometers in the main photo and 2 micrometers in the inset photo. Credit Conticello Lab 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.