Biomimetic 3D printing of composite structures with decreased cracking

Abstract

ARTICLE HIGHLIGHTS • A controllable and cost-effective high-resolution E-jet 3d-printing fabrication technology inspired by skin thermal management was developed. • The solvent-evaporation path in the printed structure and its stress-strain development under the influence of temperature were obtained. • High-aspect-ratio 3D structures with good structural integrity were prepared by adjusting the evaporation of the solvent using the temperature-change rate. • A PCL/PVP scaffold with fiber diameters close to the size of living cells was printed, which exhibited high biocompatibility for bone-tissue regeneration.