MICROFLUIDIC DEVICE COMPRISING A STRUCTURE HAVING AIR VENT AND VALVE, AND METHOD FOR TRANSFERRING FLUID BY USING THE SAME

摘要

PURPOSE: A microfluidic device is provided to stably preserve or efficiently transfer the liquid material in a centrifugal force-based microfluidic device without the change of the liquid material. CONSTITUTION: A microfluidic device comprises: a substrate that generates centrifugal force when the substrate is rotated; a liquid material storage chamber(2) that is formed in the substrate, contains a liquid material, and is sealed; and a structure(7) connected to the liquid material storage chamber. The structure comprises: a first fluid transfer control member that seals the structure from the liquid material storage chamber; and an outlet through which air is flowable and which connects the structure and the liquid material storage chamber through the first fluid transfer control member, wherein the structure controls flow of the liquid material from the liquid material storage chamber through the first fluid transfer control member using the centrifugal force and the air.