Fig. 4From: The effect of injection speed and serial injection on propidium iodide entry into cultured HeLa and primary neonatal fibroblast cells using lance array nanoinjectionExperimental set-up showing the electrical control box receiving three separate input signals coming from three power supplies (not shown) and outputting appropriately timed output signals to the injection device mounted above the prepared six-well plate. Cell culture platforms with the prepared cell cultures are seen as white and red circular components resting in the wells of the six-well plateBack to article page