TABLE 1.

Summary of material properties as tested in this work. Qualitative ratings as a comparison between materials are given with ++ (very good), + (good), o (neutral), - (poor) and - - (very poor).

	0.25Ag	0.50Ag	0.25Col	0.25Ag 0.25Col	0.50Ag 0.25Col	0.25Col 3Gel	0.25Ag 0.25Col 3Gel
Handling	+ +	+ +	+	-	-	o	- -
Printability		+ +	+	-	-	o	-
Stability during culture	-	+	+	++	++	+	-
Nozzle shear stress during printing	++	++	++	++	++	++	++
Shape fidelity/gelation	o	+	- -	+	+ +	-	+ +
Diffusivity	+	+	+ +	-	- -	o	o
Biofunctionality: cell adhesion sites Das and Basu (2019); Parak et al. (2019); Unagolla and Jayasuriya (2019)	- -	- -	+ +	+	+	+	+