Diatom (2 of 2) (IMAGE) Arizona State University Caption A selection of nanostructures built using DNA origami, alongside naturally-occurring diatoms -- single-celled organisms that come in many beautiful and elaborate forms. They are ubiquitous inhabitants of the world's lakes, rivers, and oceans. A scale shows the sizes of the nanostructures and diatoms. Credit Graphic by Shireen Dooling 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.