Table 1.

Key parameters and requirements for the most frequently used bioprinting technologies

Parameter	Extrusion bioprinting	Droplet bioprinting	Laser-based bioprinting
Viscosity	30–6 × 107 mPa/s[97]	3–12 mPa/s[97]	1–300 mPa/s[97]
Cell density	High[94,97]	Low[97]	Medium[97]
Other	Shear thinning[98]	Adequate surface tension[98]	Adequate surface tension[98]