DocumentCode :
2533253
Title :
A multiplexed microfluidic impedance sensor for high throughput analysis of microparticles
Author :
Jagtiani, Ashish V. ; Zhe, Jiang
Author_Institution :
Dept. of Mech. Eng., Univ. of Akron, Akron, OH, USA
fYear :
2011
fDate :
5-9 June 2011
Firstpage :
294
Lastpage :
297
Abstract :
A micromachined eight-channel Coulter counting device to achieve high throughput detection and counting of microparticles is reported. The design, fabrication and testing of the multichannel device is presented. The detection was implemented by measuring the resistance change of each individual microfluidic channel. The use of grounded isolation electrodes eliminates crosstalk among channels and thus allows simultaneous particle detection without crosstalk. Preliminary testing results using Juniperus Scopulorum (Rocky Mountain Juniper) pollen particles demonstrated the throughput of the device was significantly improved by simultaneously detecting particles through its parallel channels. This detection principle can be extended to a larger number of channels to further improve the detection throughput.
Keywords :
flow sensors; microchannel flow; Juniperus Scopulorum; grounded isolation electrodes; microfluidic channel; micromachined eight-channel Coulter counting device; microparticles; multiplexed microfluidic impedance sensor; rocky mountain Juniper; throughput detection; Atmospheric measurements; Electrodes; Microchannel; Radiation detectors; Resistance; Throughput; Coulter counter; Multichannel; high-throughput; isolation electrodes; particle detection;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International
Conference_Location :
Beijing
ISSN :
Pending
Print_ISBN :
978-1-4577-0157-3
Type :
conf
DOI :
10.1109/TRANSDUCERS.2011.5969402
Filename :
5969402
Link To Document :
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