Branching Out (VIDEO) Arizona State University This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Using 10-nm-size gold nanoparticles, the DNA nanotubes form a split branch structure, with both the spiral tube splitting into two smaller stacked rings. Credit The Biodesign Institute at Arizona State University 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.