sample (IMAGE) Rice University Caption A sample of the covalent organic framework material (shown here on a silicone substrate) that researchers found preserves its 2D mechanical properties as a multilayer stack. Credit Photo by Gustavo Raskosky/Rice University Usage Restrictions Must credit Gustavo Raskosky/Rice University. License Original 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.