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Results of MTT Assay showing changes in cell viability after exposure to 4 multipurpose solutions diluted with 50% culture medium for 0.5, 1, 2, 4, 6, and 24 hrs, in comparison with the Hanks’ Balanced Salt Solution (HBSS) and culture medium controls. Columns represent the mean and bars represent standard deviation of the mean in quadruplicate experiments. The x-axis represents the observation times for each solution. The y-axis represents the absorbance at 570 nm.
