Fabrication of micro-fluidic devices on piezoelectric substrate by help of starch

A new method for fabricating microfluidic device on a piezoelectric substrate is presented. Wires are pasted by mushy starch and heated in a thermotank for microchannel patterns, which is then lightly placed in a small groove. Polydimethylsiloxane (PDMS) is filled in the small groove. The wires are...

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Bibliographic Details
Published inFerroelectrics Vol. 551; no. 1; pp. 24 - 31
Main Authors Liu, Wei-Yue, Zhang, An-Liang
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 26.10.2019
Taylor & Francis Ltd
Subjects
Dilution
Fabrication
Grooves
Interdigital transducer
Microchannels
Microfluidic device
Microfluidic devices
Piezoelectricity
Polydimethylsiloxane
Silicone resins
Starch
Substrates
Surface acoustic wave
Transportation
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Summary:A new method for fabricating microfluidic device on a piezoelectric substrate is presented. Wires are pasted by mushy starch and heated in a thermotank for microchannel patterns, which is then lightly placed in a small groove. Polydimethylsiloxane (PDMS) is filled in the small groove. The wires are drawn off after PDMS has been solidified. The PDMS microfluidic channel is then mounted on the piezoelectric substrate. Fluidic transportation and dilution operation are demonstrated for verifying the function of the microfluidic device. Results show that 6uL red ink droplet can be transported and diluted in the channels at 27.8dBm electric signal power.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2019.1658023