MINUTE STIRRING SEPARATOR

PROBLEM TO BE SOLVED: To provide a minute stirring separator which imparts a separation function or a concentration function of fluid internal capsule components such as a suspended material or a solidification function of a fluid having the property or the coagulation property to a fluid having a droplet configuration on a chip substrate of a microfluid device. SOLUTION: The minute stirring separator has a substrate surface to which droplets are arranged and through which surface acoustic waves (SAW) are transmitted, and a SAW dispatching part as a basic constitution. It is characterized by utilizing a spiral acoustic stream that is induced into the droplets by SAW of which the strength is moderately regulated. It performs the circulation of the fluid having the separation function or concentration function, or the solidification property or the coagulation property of the fluid content components for every droplet by the physical mechanism such as flocculation precipitation to the center part by the liquid cyclone or the pressure gradient due to the velocity distribution which are brought by the stirring action. COPYRIGHT: (C)2011,JPO&INPIT