DataPhysics Instruments and the start-up droptical, a manufacturer of drop generators and camera technology from Nuremberg, have developed the FlexDrop dosing system for tiny drops. The dosing system is compatible with all contact angle measuring devices in the OCA series. It is suitable for contact angle and 1-click surface energy measurements on particularly small surface areas.
High-quality optics and precise dosing
The contact angle measuring devices in the OCA series are high-precision systems for characterizing interfaces and surfaces. They combine pinpoint dosing and precise sample positioning. The FlexDrop dosing system now extends the possibilities of liquid dosing for contact angle and surface energy measurements.
Measurement on the smallest surface areas
The FlexDrop dosing system's piezo dosing technology and precise control make it possible to position drops on the smallest surface areas. The FlexDrop dosing system can dose drops with minimal volume - in the picoliter and nanoliter range - reproducibly and with pinpoint accuracy. For the first time, users can carry out measurements on two drops two millimeters apart without having to reposition the dosing unit. Such close positioning of the drops was not possible with previous dosing systems as a one-click measurement. The simultaneous dosing of two drops is advantageous for determining the surface energy of solid surfaces, for which at least two test liquids are required.
Easy cleaning and quick cartridge change
The small drop size makes cleaning the sample particularly easy, as the drops evaporate from the surface without leaving any residue. The FlexDrop dosing system is equipped with exchangeable cartridges for the test liquids. Users can change the cartridges in a few simple steps. By using different cartridges with different liquids, the risk of cross-contamination of the liquids is eliminated.