Figure 11: The relative viability of fibroblast (Cos-7) cells as determined by MTT assay. Cells were grown up to 10 days on polystyrene-coated tissue culture plate well used as a control (solid bar); carrageenan-gelatin synthesized with two different crosslinkers like glutaraldehyde (CGG—striped bar) and EDC-NHS (CGE—dotted bar). The absorbance of blue formazan was measured at 570 nm at different time intervals up to ten days of culture.