| AAV | adeno-associated virus |
| AP | action potential |
| APD | action potential duration |
| CAG | chicken β actin |
| ChR2 | Channelrhodopsin-2 |
| CiPA | comprehensive in vitro proarrhythmia assay |
| ECG | electrocardiogram |
| EDTA | Ethylenediaminetetraacetic acid |
| EGTA | Ethylene-bis(oxyethylenenitrilo)tetraacetic acid |
| EYFP | enhanced yellow fluorescent protein |
| FACS | fluorescence-activated cell sorting |
| FCS | fetal calf serum |
| FP | field potential |
| FPD | field potential duration |
| hERG | human Ether-a-go-go Related Gene |
| HEPES | 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid, N-(2-Hydroxyethyl)piperazine-Nesulfonic idhors de acid) |
| hiPSC | human induced pluripotent stem cells |
| IMDM | Iscove’s Modified Dulbecco’s Media |
| IKr | rapid potassium current |
| LED | Light-emitted diode |
| max.DV | maximum negative downstroke velocity |
| MEA | microelectrode array |
| PBS | Phosphate-buffered saline |
| PFA | paraformaldehyde |