(A,B) In vitro BSA release from Pluronic® F108:Alg-g-CD hydrogels. Experiments were performed at 37 °C under mild agitation in PBS, pH 7.4, investigating A) Alg-C2 and B) Alg-C6 hydrogels. Black circles represent 6% (w/v) Alg-g-CD solutions, and open circles represent 4% Alg-g-CD solutions. Solid lines represent Pluronic® F108:Alg-g-CD hydrogels with ratios of 1:2, and dashed lines represent hydrogels with ratios of 1:4. C) In vitro MTT-based cytotoxicity assay results for hydrogels cultured with primary human MSCs indicated no toxic effects compared to the non-modified tissue culture polystyrene control group. There were no significant differences between each group.