Fig. 3From: Integration of conventional cell viability assays for reliable and reproducible read-outs: experimental evidenceValidation of QCV assay: a Crystal violet stained cell pictures recorded at ×400 magnification at the end of 8 days treatment are shown. b Manually counted cell colonies in six variants of control and treated wells. c Quantified colony number, and d Quantified absolute cell count by dissolving crystal violet in de-staining solution and using slope equation for C6 cells. Statistical analysis is depicted as * < 0.05, **0.01, and *** < 0.001Back to article page