Fig. (IMAGE) Osaka University Caption Conceptual figure showing the enzymatically sustainable resources of poly(ε-caprolactone)-poly(urethane) (PCL-PU) with movable cross-links catalyzed by lipase as the enzyme. Credit Yoshinori Takashima Usage Restrictions No restrictions 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.