Title :
Electrokinetic Instability Induced Valveless Multi-Switching in a Microfluidic Chip
Author :
Chang, Wen-Chung ; Hsieh, I-Ting ; Yarn, Kao-Feng ; Luo, Win-Jet
Author_Institution :
Dept. of Electron. Eng., Southern Taiwan Univ. of Technol., Taiwan
Abstract :
This work presents the experimental investigation with electrokinetic flow mixing for bio-analytical chip applications. By DC electrokinetic instability induced technique, we design a 5x5 microfluidic device which possesses microfluidic sample handling in flow multi-switching. The device not only control single sample flows into different outlet considered but also the multi-sample injection into specific outlet ports. Experimental results indicate that the sample flow could be electrokintcally pre-focusing to a narrow stream and then guided into a desired outlet port and successfully control devices of the voltage in the microfluidic chip.
Keywords :
bioMEMS; biochemistry; biological techniques; biomedical equipment; chemical analysis; electrohydrodynamics; electrokinetic effects; flow instability; lab-on-a-chip; microchannel flow; mixing; DC electrokinetic instability; MEMS; bioanalytical chip; electrokinetic flow mixing; flow multiswitching; microfluidic chip; microfluidic device; microfluidic sample handling; multisample injection; narrow stream; outlet port; single sample flow; valveless multiswitching; Bonding; Chemicals; Electrokinetics; Glass; Lithography; Microchannel; Microfluidics; Micromechanical devices; Resins; Wet etching;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504106