Single Motorized Metal-Organic Framwork (IMAGE) University of Groningen Caption This is a single 'cage' with the light driven rotational motors in yellow. Credit University of Groningen Usage Restrictions With credit 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.