Fig. 2
From: Development of a miniaturized stimulation device for electrical stimulation of cells
Levels of intracellular calcium in SH-SY5Y cells during stimulation with AC square waves. a Fluorescence images showing increase in calcium-binding dye X-Rhod-1 levels (yellow arrows) over 30 min of stimulation, and decrease in X-Rhod-1 levels 15 min after stimulation was discontinued. b The histograms show the corresponding intensity values of the entire field over 30 min stimulation with 5 V, 1 Hz AC square waves, and 15 min post-stimulation. Scale bar = 100 μm