4D printing techniques enable the realization of smart materials whose shape or properties can change with time. Here, utilizing the anisotropic deformation of a combination of polymers and the distribution of microdefects formed during the 3D printing process, the authors realize a variety of shape-changing curved structures that can be used in drug delivery systems.
- Vahid Moosabeiki
- Ebrahim Yarali
- Amir A. Zadpoor
