Abstract: The electric microfluidics multiplex system comprises at least one channel for liquid flows which includes molecules, particularly biomolecules, molecule complexes or microparticles adapted to be manipulated and in particular to be transported by electric fields. Further, the electric microfluidics multiplex system comprises a multitude of electrodes arranged to follow each other individually or in groups along the at least one channel, and drive electronics with a plurality of outputs for control signals to be applied to the electrodes. The electrodes are divided into groups. Each group is assigned to an output of the drive electronics. The electrodes of each group are interconnected and are connected to the respective assigned output of the drive electronics.

Abstract: An economical process for the manufacture of a polycrystalline, sintered, ceramic abrasive from a powder raw material is described, which process is characterized by the following process steps: preparation of a slip largely free from polymerizing and/or coagulating additives from the powder raw material; pressureless shallow casting of the slip in a vessel; degassing, drying and crushing of the cast sheet to obtain a fabricated material and sintering of the fabricated material to create the abrasive. This process can be used to manufacture an abrasive that permits extremely high grinding performance due to its extraordinary density and structural integrity.