Microfluid microchip for laboratory analysis and synthesis has channel structure with signal generators to develop fixed potential and modulated potential for controlled movement of matter through channel system

摘要

A microfluid microchip (30) has a channel structure (31) where the matter is moved through especially by an electrical potential. It has a guide channel (47-49) with at least one feed channel (33), and at least one outlet channel (36-38) to lead off the matter at least at two intersections (39-41). The microfluid microchip (30), for the chemical or physical and/or biological analysis or synthesis of matter, has a channel structure (31) where the matter is moved through especially by an electrical potential. It has a guide channel (47-49) with at least one feed channel (33), and at least one outlet channel (36-38) to lead off the matter at least at two intersections (39-41). At least one guide channel section (47-49) of a given length is formed between the intersection (35) of the feed channel (33) and the guide channel (47-49) at one side and, on the other side, the intersection (39-41) of the outflow channel (36-38) and the guide channel (47-49). The system to build up a potential is at the feed channel (37) and the outflow channel (36-38) to give the matter a continuous movement from the feed channel (33) and through the guide channel (47-49) to the outflow channel (36-38). A further unit forms a time-modulated and/or amplitude-modulated potential to give the matter a modulated movement of separated volumes of the matter through the modulated potential action. Independent claims are also included for the following: (i) a measurement system with a generator to form a time-constant signal to give a constant potential to induce a continuous movement of the matter and a second generator gives a modulated potential for the modulated movement of the matter; and (ii) the operation of the microchip, where the fluid is impelled through the channel structure by controlled potentials.