Simplified Cartoon Process of the Hexaphenylbenzene Nanocube Hosting Different Guest Molecules (image) University of Tokyo Share Print E-Mail Caption The nanocube is built with hexaphenylbenzene molecules about 2 nanometers in diameter, but the cube can expand or contract to best accommodate host molecules based on their size, shape, and atomic charge. Credit Image by Shuichi Hiraoka CC-BY-ND. Usage Restrictions Image by Shuichi Hiraoka CC-BY-ND. Share Print E-Mail 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.