Table 1.

Comparison of 3D bioprinting technologies.

Bioprinting Technology	Inkjet	Extrusion	Stereolithography
Resolution	High (tens of micrometers)	Moderate (micrometers-millimeters)	High (micrometers)
Print speed	Fast	Slow	Fast
Cost	Low	Medium	Low
Bioink viscosity	Low	High	No limitation
Bioink gelation	Chemical, photocrosslinking	Chemical, enzymatic, thermal, photocrosslinking	Photocrosslinking
Cell density	Low	High	High
Representative marine-derived biomaterials for bioinks	Alginate, collagen	Alginate, carrageenan, chitosan, GelMA, collagen	GelMA, MeHA