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sGAG concentration in cell culture medium and collagen II in scaffolds, seeded with human chondrocytes of 3 donors 21 days after seeding in chitosan flock scaffolds (CFS), alginate hydrogels (ALG) and chitosan/alginate flock scaffolds (CFS+ALG). sGAG was determined using an assay based on Alcian blue, and collagen II was detected on protein level using ELISA. The results are shown as mean ± SD, n = 3. p-value **** < 0.0001, *** 0.0001–0.001, ** 0.001–0.01, * 0.01–0.05.
