These actuators are piezoelectric ceramics glued onto the outside of a thin silicon membrane. Upon application of a voltage, they go out of shape in a preferred direction. This deflection is transferred to a 0.8ul pump chamber filled with fluid and results in the formation of a tiny droplet that is ejected from the nozzle at a speed of 1 - 5 meters per second. This process can be repeated indefinately.

The dispensers adhere to the "Drop on Demand" principle; this means precise dosage, because each electrical pulse generates exactly one droplet. Bursts with a predefined number of drops at a certain frequency are freely selectable and can be used to dispense varying amounts of fluid or draw lines.

• Delivery of perfectly spherical droplets
• Multiple pipette types producing different droplet volumes (i.e., SPIP (approx 1 nanoliters) and PICPIP (0.1 nanoliters))
• Defined bursts on mouse click or by hardware triggering
• Burst mode or continuous dosage
• Ready to use immediately after plugging the control device into the PC
• Special designs (multi-channel and heatable pipettes) available