Figure 6. Validation using cell-laden bioink.
A) Changes in viscosity across shear rate for 4% gelatin bioinks with cellular concentration from 0 to 30 × 106 cells/mL. B) Bioinks containing 1, 10, or 30 × 106 cells/mL were bioprinted in 4% gelatin bioink using optimized printing parameters. C) Phase contrast micrographs demonstrate the varying cellular densities across the bioprinted groups.