Fig. 5From: 3D printable hyaluronic acid-based hydrogel for its potential application as a bioink in tissue engineeringOptical images of printed HA-g-pHEA-Gelatin gel scaffolds with/without cells. (a, b, c, d) Non-cell loaded hydrogel and (e, f, g, h) cell-loaded bioinks were extruded from the nozzle by applying different air pressures of 450, 500, 550 and 600 kPa respectivelyBack to article page