Fig.1 A Pseudo-Rotaxane (IMAGE) Osaka University Caption A pseudo-rotaxane (artificial molecular machine) in which translational movement of α cyclodextrin (α -CD) coincides with deuteration. As α -CD moves along the two-station axis molecule as shown by the gray arrow, it catalyzes deuteration of the axis molecule. Credit Osaka University 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.