Shape-shifting structured lattices via multimaterial 4D printing.

ABSTRACT: Shape-morphing structured materials have the ability to transform a range of applications. However, their design and fabrication remain challenging due to the difficulty of controlling the underlying metric tensor in space and time. Here, we exploit a combination of multiple materials, geometry, and 4-dimensional (4D) printing to create structured heterogeneous lattices that overcome this problem. Our printable inks are composed of elastomeric matrices with tunable cross-link density and anisotropic filler that enable precise control of their elastic modulus (E) and coefficient of thermal expansion [Formula: see text] The inks are printed in the form of lattices with curved bilayer ribs whose geometry is individually programmed to achieve local control over the metric tensor. For independe

SUBMITTER: Boley JW 

PROVIDER: S-EPMC6800333 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature