Title :
Sheath-flow forming by using twisted micro-channel
Author :
Sato, Takao ; Miyake, R.
Author_Institution :
Res. Inst. for Nanodevice & Bio Syst., Hiroshima Univ., Hiroshima, Japan
Abstract :
We developed a twisted micro-channel in order to form a sheath flow in an integrated micro-fluidic chip. The new device has a central straight channel and two parts of 2-dimensional merging channel. It is twisted by 90 degree in between the first part and the second part. We applied the unique material property of polydimetylsiloxane (PDMS), that is elasticity; “easily bent and twisted”. The micro-channel configuration (width, length etc.) were designed to form an isotropic focusing flow. Distribution of particle´s velocity in the section of the micro-channel down the junction points showed sheath flow forming.
Keywords :
elasticity; forming processes; microchannel flow; microfabrication; polymers; 2-dimensional merging channel; PDMS; central straight channel; elasticity; integrated microfluidic chip; isotropic focusing flow; microfabrication; particle velocity distribution; polydimetylsiloxane; sheath-flow forming; twisted microchannel; Elasticity; Fabrication; Focusing; Junctions; Mathematical model; Numerical models; Numerical simulation;
Conference_Titel :
Micro Electro Mechanical Systems (MEMS), 2013 IEEE 26th International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4673-5654-1
DOI :
10.1109/MEMSYS.2013.6474461
