Fig. 1From: Integration of conventional cell viability assays for reliable and reproducible read-outs: experimental evidenceInterference of cell number and color of the test reagent in the cytotoxicity assays. a Cell viability after 8 days of culture in a 96-well plate well. b Cell growth pattern over 8 days in a 96-well plate, and c Cell viability after 48 h treatment with colored extract HA-05 (left) and cell pictures (right) against control recorded at ×40 magnification. d Images of the colored extracts and colorless compounds. Statistical analysis is depicted as * < 0.05, **0.01, and *** < 0.001Back to article page