Schematic of Clay Vesicle Formation (IMAGE) Harvard University Caption The authors' schematic of clay vesicle formation, showing a cut-away view of the clay shell and dissolving bubble at the top, and a view of the water-air interface at the bottom. Credit Image courtesy of Anand Bala Subramaniam, Harvard School of Engineering and Applied Sciences. 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.