Design of the miniature stimulation device. a Whole device with DC bias connectors, waveform input pin P
, output pins P
and biocompatible cell chamber array, b Schematic of integrated cell chamber array, c Wire holder lifted out of single cell chamber with a pair of secured platinum wire electrodes, d Schematic of single of cell chamber and wire holder, and e Top-down schematic of fitted wire holder. All dimensions are in mm.