Figure 1 (IMAGE) Tohoku University Caption Synthesis of free-standing and edge-site-free GMS-sheet with hierarchically porous structure. Credit Wei Yu, Hirotomo Nishihara et al. Usage Restrictions Reporters may use freely these materials in news coverage with appropriate credit information. 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.