Fig. 2From: An integrated characterization of contractile, electrophysiological, and structural cardiotoxicity of Sophora tonkinensis Gapnep. in human pluripotent stem cell-derived cardiomyocytesOptimization of hiPSC-CMs plating density on CardioExcyte 96. a Base impedance, b amplitude (IMP), and c amplitude (EFP) of hiPSC-CMs within 96 h after plating. Data are presented as the mean ± SEM, n ≥ 3Back to article page