Stacked Rings of Gold (VIDEO) Arizona State University This video is under embargo. Please login to access this video. Caption In this DNA nanotube configuration, again using 5-nm size gold nanoparticles, the nanoparticles form stacked rings around the DNA. 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.