Fabrication of multi-scale and tunable auxetic scaffolds for tissue engineering

Melt electro writing (MEW) provides three-dimensional (3D) printing porous scaffolds with well-defined geometrical features of ultrafine fibers in the tissue engineering. Scaffolds with adjustable Poisson's ratio are more suitable in certain biological applications for mimicking the behavior of native tissue mechanics. However, it is still a challenging issue to tune the Poisson's ratio. In order to resolve this problem, a new method is proposed...