Fig. 5
The factor influencing cell viability. a The three reasons affecting cell viability and differentiation. b Live/dead assay of cells with two pressure methods (pneumatic and screw) at different printing speeds.92 c Cell damage tests of four different diameters.92 d Two factors, process parameters and bioink properties, affect cell viability; process parameters, including nozzle size and flow rate; and bioink properties, including viscosity and viability. (Figures adapted with permission from Ning et al.92)
