The stimulating optical lid, CardioExcyte 96 SOL, uses LEDs for spatially uniform stimulation of cells transfected with light-gated ion channels such as Channelrhodopsin2 (ChR2).
Right graph: LPM – Light pulse per minute plotted against the recorded beat rate (average of 96 wells). ChR2 transfected Cor.4U cells are following the optical pace rate.
Nifedpinie is a dihydropyridine calcium channel blocker that primarily blocks L-type calcium channels. Impedance and EFP recordings on Cor.4U cells reveal a concentration dependent effect on impedance amplitude, beat rate and also a shortening of the FPD as expected.