Marc in het Panhuis

TL;DR: The trends indicate that hydrogels that self-heal better also achieve self- healing faster, as compared to gels that only partially self- Healing, and the potential relevance of self-Healing hydrogel to the exciting research areas of 3D/4D printing, soft robotics, and assisted health technologies is highlighted.

TL;DR: A smart valve is created by 4D printing of hydrogels that are both mechanically robust and thermally actuating, and created by printing the "dynamic" hydrogel ink alongside other static materials.

TL;DR: A hydrogel-dielectric-elastomer system, polyacrylamide and poly(dimethylsiloxane) (PDMS), is adapted for extrusion printing for integrated device fabrication with no visible signs of delamination and geometrically scaling resistance under moderate uniaxial tension and fatigue.

TL;DR: The facile ability to form discrete cell-containing layers validates the application of this novel printing technique to form complex, layered and viable 3D cell structures that offer the opportunity to reproduce more accurate 3D in vitro microstructures with applications ranging from cell behavior studies to improving the understanding of brain injuries and neurodegenerative diseases.

TL;DR: This review outlines the general principles and current progress and compares the advantages and challenges for the most widely used biofabrication techniques for printing cells: extrusion, laser, microvalve, inkjet and tissue fragment printing.