3D Biomaterial Scaffolds Exhibiting a Tunable Negative Poisson's Ratio

摘要

Geometry and spatial arrangement of the pores (unit-cell) controlled the polarity and magnitude of the Poisson's ratio of the overall meshworks. The strain-dependent behavior was well-predicted by stress-strain analytical models. This work demonstrates the ability to tune negative Poisson's ratios by virtue of their well-defined cellular meshworks.