A paper-based microfluidic device with cotton thread channels based on surface acoustic wave

A new paper-based microfluidic device is fabricated on a piezoelectric substrate. A polydimethylsiloxane channel filled with cotton threads is mounted on the piezoelectric substrate with an interdigital transducer. A testing filter paper with dried reaction solution is coated on the end of the cotto...

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Bibliographic Details
Published inFerroelectrics Vol. 526; no. 1; pp. 24 - 32
Main Authors Zhang, An-Liang, Cai, Ya-Wei, Xu, Yue, Liu, Wei-Yue
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis Ltd 04.04.2018
Subjects
Automobiles
Color
Cotton
Filter paper
Negative campaigning
Piezoelectricity
Polydimethylsiloxane
Starch
Substrates
Surface acoustic waves
Transportation
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Summary:A new paper-based microfluidic device is fabricated on a piezoelectric substrate. A polydimethylsiloxane channel filled with cotton threads is mounted on the piezoelectric substrate with an interdigital transducer. A testing filter paper with dried reaction solution is coated on the end of the cotton thread. Sample solution is driven to the cotton thread channel and transported to testing area for microfluidic analysis. Red ink solution and color development reaction of starch are demonstrated for microfluidic operation and analysis. Results show that the linear velocity of microfluidic transportation in the cotton thread channel is 4.558 mm/s, and color development reaction of starch is successfully implemented.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2018.1456250