Dispensing Technology

Quality made in Germany: M2-Instruments GmbH offers two state of the art non-contact picoliter dispenser and nanoliter dispenser. Your advantage: your target remains untouched and intact. Choose your favourite dispensing technology depending on your application.

Piezo-Driven Microdispenser

The Piezo-Driven Microdispenser (PDMD) for the picolitre-volume range utilises ultra-fast Volume Displacement and can dispense a minimum of 20-30 pL. PDMDs can dispense > 1000 droplets/s, meaning larger volumes can easily be transferred too.The core elements of a PDMD are a thin borosilicate glass capillary with a piezo ceramic actuator attached to it.

The PDMD offers a unique feature on the market. Consider that each sample has different characteristics, such as viscosity and chemical composition. With the integrated feature, the Pulse Shaper, you can shape your impulse wave for your individual sample. This means that there are no longer any limits to the design of the electrical impulse in order to always achieve the best printing results.

M2 Microdispenser Aspirate/Dispense

The M2 Microdispenser can aspirate and dispense liquids from nano to low picolitre. This technology provides a homogeneous and reproducible spot event. It utilises variably fast volume displacement as a dispensing technique for maximum volume accuracy, or by employing time-limited fast Flow-Based microdispensing for maximum flexibility. In Flow-Based microdispensing, the two independent parameters of pressure and valve-opening time determine the droplet volume. The specified minimum dispense volume is 10 nL, and that can be increased to 5 µL.
Each M2 Microdispenser comes with 3 glass tips that can be changed by the user.

M2 Microdispenser Bulkreservoir

If only one solution must be dispensed, it can be advantageous to feed it from a reservoir attached to the dispenser. A so-called bulk-dispenser version of our M2MD does exactly that. The solution to be dispensed is filled into a 20 mL glass vial, and if a small tube is preferred, it can be placed inside the vial. The M2 Microdispenser can single sample bulk dispense from nanolitre to low microlitre. It offers the user maximum flexibility for non-contact liquid handling in the nanolitre volume range.

Teaching Accessory

Our unique dummy PDMD is supplied free of charge with every dispenser. With the help of this dummy, all necessary settings can be made in the iFOUR without using the actual dispenser. This has the advantage that even inexperienced users can learn to use the system. The tip of the dummy PDMD is adjustable in length so that it can be adapted to any dispenser size. In addition, the tip of the dummy PDMD retracts if the target is accidentally touched. This not only protects your dispenser but also your valuable target.