3D Printing Beyond Conventional Rheological Limits: Two‐Step Crosslinking of Low‐Viscosity/Moduli Inks Into Tough Hydrogels
A careful balance between extrusion flowability and rapid viscoelastic recovery is essential for direct ink writing (DIW). The ink must flow easily under shear during extrusion and quickly recover a solid‐like structure after extrusion to maintain the printed architecture. Conventional ionic crosslinking methods to tun...