Paper Based Microfluidic Device Using Surface Acoustic Wave as Driving Source

Abstract:

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It is necessary to implement pretreatment operations for a paper based microfluidic device. A paper based microfluidic device with SAW driving microfluid has been implemented. Trance analyte to be detected was absorbed into a filter paper at first, and mounted on PDMS blocks on a piezoelectric substrate to ensure that the indicting filter paper has a little gap with the piezoelectric substrate. Reagents were then pipetted on the piezoelectric substrate and transported by surface acoustic wave excited by an interdigital transducer, which was fabricated on a 1280-yx LiNbO3 using micro-electrical technology. A color was developed due to chemical reaction, and the analyte concentration was evaluated by its grey value. Nitrate ion was detected using the microfluidic system.

Info:

Periodical:

Edited by:

Han Zhao

Pages:

1658-1662

DOI:

10.4028/www.scientific.net/AMM.130-134.1658

Citation:

A. L. Zhang and Q. J. Han, "Paper Based Microfluidic Device Using Surface Acoustic Wave as Driving Source", Applied Mechanics and Materials, Vols. 130-134, pp. 1658-1662, 2012

Online since:

October 2011

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Price:

$35.00

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