Table 1.

Quantitative analysis of cessation and recovery of cardiomyocyte contractility in a cohort of beating clusters derived from GS-2 embryonic stem cells, following exposure to blue light

Experiment	No. of Clusters Observed	No. of Clusters Ceased Beating (%)	Time Taken for Cessation, min	No. of Clusters Regained Beating (%)	Time Taken to Regain Beating, h
1	7	7 (100)	16.2 ± 1.5	6 (85.7)	1–3
2	5	5 (100)	13.4 ± 4	5 (100)	1–2
3	4	3 (75)	14.1 ± 3.5	3 (100)	1–2
Total/mean	16	15 (93.75)	14.57 ± 0.8	14 ( 93.33)	1–3