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Growth and proliferation of SMMC7721 cells cultured in Matrigel, collagen-I and RADA16-I hydrogels. A. SMMC7721 cell density in different matrices calculated from DNA measurement at cultured Day 3, 6 and 9. B. Percentage of BrdU labeling cells cultured in Matrigel, collagen-I and RADA16-I hydrogels, expressed as the BrdU labeling index from three experiments (about 200 cells per experiment) at cultured Day 3, 6 and 9.
