Fig. 1. Electroporation electrode and slide assembly. Cells are grown on glass slides coated with conductive and transparent ITO within a "window" cut into a Teflon frame as shown. The peptide solution is added to the cells and introduced by an electrical pulse delivered through the electrode set, which is placed directly on the frame. Two configurations (A and B) were used. A, partly conductive slide assembly, with electroporated (a) and nonelectroporated (c) cells growing on the same type of ITO-coated surface. b, area where the conductive coating has been stripped, exposing the nonconductive glass underneath. Cells growing in areas b and c are not electroporated. B, fully conductive slide assembly with a window of 32 x 10 mm (reprinted from Ref. 23 with permission).