Shape memory polymers (IMAGE) Heidelberg University Caption Smart polymers with “life-like” properties: due to dynamic chemical bonds the micrometric 3D structures can grow eight-fold in just a few hours and harden. Scale: 20 micrometres (µm). Credit Christoph Spiegel (Heidelberg University). Adapted from Y. Jia et. al, Adv. Funct. Mater. 2022, 2207826 (CC BY 4.0) Usage Restrictions This image may be used only in connection with the contents of this press release, and the source of the image must also be cited. 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.