4D Printing of a Light-Driven Soft Actuator with Programmed Printing Density.

ABSTRACT: There is a growing interest in the concept of four-dimensional (4D) printing that combines a three-dimensional (3D) manufacturing process with dynamic modulation for bioinspired soft materials exhibiting more complex functionality. However, conventional approaches have drawbacks of low resolution, control of internal micro/nanostructure, and creation of fast, complex actuation due to a lack of high-resolution fabrication technology and suitable photoresist for soft materials. Here, we report an approach of 4D printing that develops a bioinspired soft actuator with a defined 3D geometry and programmed printing density. Multiphoton lithography (MPL) allows for controlling printing density in gels at pixel-by-pixel with a resolution of a few hundreds of nanometers, which tune swelling behavio

SUBMITTER: Nishiguchi A 

PROVIDER: S-EPMC7135850 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature