Microsystem platform and its use

A microsystem platform comprises a substrate in the form of a disc, which has a first flat, planar surface (31) comprising a multiplicity of microchannels and at least one sample input means (11) embedded therein. The disc has also a second flat, planar surface (27) opposite to the first surface. The sample input means (11) of the disc and its microchannels are connected and in fluidic contact with each other and with air vents (29,33,34,35). The disc has a centrally located aperture that is designed to be engaged by a spindle of a micromanipulation device that induces rotational motion to the microsystem platform when that is placed on the spindle. By such rotational motion, a volume of a fluid within the microchannels of the platform is moved through said microchannels by centripetal force arising from rotational motion of the platform sufficient to move the fluid through the microchannels. Also disclosed are important elements of a microsystem platform, such as reaction chambers (16,22,24), microvalves (15,17,19,21, 23,25), inlet and outlet ports (11,32), as well as a system for performing microanalytical and microsynthetic assays of biological, chemical, environmental and industrial samples. This system comprises a microsystem platform and a micromanipulation device designed to rotate the first.