Cardiomyocytes generated from Induced Pluripotent Stem or IPS cells are increasingly used to answer a variety of biological questions in the field of cardiac electrophysiology. The main advantages of this technology are that it allows a dramatic i
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Here we present a method to optically image action potentials, specifically in ventricular-like induced pluripotent stem cell-derived cardiomyocytes. The method is based on the promoter-driven expression of a voltage-sensitive fluorescent protein.