Single-walled zeolitic nanotube (IMAGE) Georgia Institute of Technology Caption The single-walled zeolitic nanotube is composed of a microporous aluminosilicate wall encapsulating a hollow mesoporous core. Credit Tom Willhammar, Stockholm University Usage Restrictions NA 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.