„Biochips“ technology starts entering DNA laboratories and not only as prototypes, that show fascinating increase in effectivity which can change our nearest future. Practically all processes used in DNA laboratories are to be involved. Hybridization reaction is the most often used principle in microchips, but already polymerase chain reaction (PCR) has been miniaturized to the microchip level and also separation of blood cells. Function of these newly developed microdevices in being verified by solving practical problems in diagnostics.

        Key words: biochip, microchip, microdevice, DNA laboratories, miniaturization.