Title :
Multi particles and biomolecules sorting system using thermoreversible gelation controlled by DMD [digital mirror device]
Author :
Watabe, Shota ; Tatsuoka, Masayasu ; Shimomae, Tomohiro ; Shirasaki, Yoshitaka ; Mizuno, Jun ; Funatsu, Takashi ; Shoji, Shuichi
Author_Institution :
Dept. of Nano-Sci. & Nano-Eng., Waseda Univ., Tokyo, Japan
Abstract :
A one-inlet and nine outlet multi sorting system using thermoreversible gelation of polymer (Mebiol Gel™) was developed for efficient particle and biomolecule handling. The system uses 3×3 arrayed microchannels which have 9 cross points. One outlet out of nine is selected and the flow pass is determined by IR irradiation to the certain junctions and channels where gel areas are formed. The IR irradiation points are selected using a PC controlled digital mirror device (DMD). Since nine flow passes are formed by the IR beams reflected by the DMD, nine outlets sorting are performed in simple microchannels without any mechanical valve systems. Switching time of less than 60 msec is obtained in this system.
Keywords :
macromolecules; microfluidics; micromirrors; polymer blends; sol-gel processing; 60 ms; DMD controlled thermoreversible gelation; PC controlled digital mirror device; biomolecule sorting system; junction IR irradiation; microchannel IR irradiation; microflow system; multi sorting; particle handling; particle sorting system; polymer gelation; sol-gel transition co-polymer; thermal gelation; Biomedical optical imaging; Control systems; Microchannel; Molecular biophysics; Nanobioscience; Optical control; Polymer gels; Sorting; Temperature dependence; Thermal force;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS '05. The 13th International Conference on
Print_ISBN :
0-7803-8994-8
DOI :
10.1109/SENSOR.2005.1496450
