Table 1. Alginate and alginate blends with collagen and RGD-alginate shear and young moduli with different concentration in cell growth medium.

Polymer (Matrix)	Alginate	Alginate	Alginate	Alginate/Collagen	Alginate/RGD-alginate	Alginate/RGD-alginate	Alginate/RGD-alginate
Concentration	2 w/v%	1 w/v%	0.5 w/v%	0.75 w/v% /0.1 mg/ml	2 w/v% /100 fmol/ml	1 w/v% /100 fmol/ml	0.5 w/v% /100 fmol/ml
Complete gelation time (hr)	4	5	6	2.5	4	4.5	5
Shear modulus (kPa)	2.15 ± 0.15	1.16. ± 0.17	0.753 ± 0.08	2.35 ± 0.15	2.26 ± 0.2	1.2 ± 0.1	0.76 ± 0.089
Young modulus (kPa)	5.29 ± 0.25	2.85 ± 0.25	1.85 ± 0.08	5.8 ± 0.35	5.56 ± 0.25	2.95 ± 0.25	1.87 ± 0.08