a device is provided in which a carousel is provided for use in such biochemical and chemical processes as polymerase chain reactions , using the centrifugal force resulting from rotation of the carousel to motivate fluid movement through microchannels embedded in microslides . the slides are arranged and positioned to function as fan blades vanes during rotation , to cause thermal regulation airflow through the device . various other features are enabled by the present invention that improve efficiency and simplify processes such as those described .