Abstract
Even though microfluidics has been successfully used in minimizing complicated and onerous processes, the pumping and tubing systems used with it are yet undeveloped and need immediate development. The present study developed a fluttering bar-driven micropump, mounted on a polydimethylsiloxane microfluidic system. The pump consists of a rectangular ferromagnetic bar and a fan-shaped chamber with an inlet and outlet. Through various experiments, the net flow was examined as a function of chamber shape, inlet and outlet channel location, rotating center of the magnet, and rotational speed. Using high-speed camera and image analysis, the net flow was found to be generated by the fluid inertia associated with the varying reciprocating speeds of the bar inside the fan-shaped chamber. Depending on the locations of the inlet and outlet, the cycle time taken to circulate the loop was significantly reduced from 200 to 4 s. The flow rate of the micropump ranges from 48-225 μl/min, which is proportional to the rotational speed of the magnet (150-3000 rpm). Using a fluttering bar-driven inertial micropump, the microfluidic system not only provides improved mixing, but also eliminates certain problems associated with external tubing and connection.
| Original language | English |
|---|---|
| Article number | 014115 |
| Journal | Biomicrofluidics |
| Volume | 12 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2018 Jan 1 |
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ASJC Scopus subject areas
- Molecular Biology
- Materials Science(all)
- Genetics
- Condensed Matter Physics
- Physical and Theoretical Chemistry
Cite this
Asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics. / Na, Wonwhi; Kim, Jinsung; Lee, Hoyoon; Yoo, Byeongmin; Shin, Sehyun.
In: Biomicrofluidics, Vol. 12, No. 1, 014115, 01.01.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Asymmetric fluttering ferromagnetic bar-driven inertial micropump in microfluidics
AU - Na, Wonwhi
AU - Kim, Jinsung
AU - Lee, Hoyoon
AU - Yoo, Byeongmin
AU - Shin, Sehyun
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Even though microfluidics has been successfully used in minimizing complicated and onerous processes, the pumping and tubing systems used with it are yet undeveloped and need immediate development. The present study developed a fluttering bar-driven micropump, mounted on a polydimethylsiloxane microfluidic system. The pump consists of a rectangular ferromagnetic bar and a fan-shaped chamber with an inlet and outlet. Through various experiments, the net flow was examined as a function of chamber shape, inlet and outlet channel location, rotating center of the magnet, and rotational speed. Using high-speed camera and image analysis, the net flow was found to be generated by the fluid inertia associated with the varying reciprocating speeds of the bar inside the fan-shaped chamber. Depending on the locations of the inlet and outlet, the cycle time taken to circulate the loop was significantly reduced from 200 to 4 s. The flow rate of the micropump ranges from 48-225 μl/min, which is proportional to the rotational speed of the magnet (150-3000 rpm). Using a fluttering bar-driven inertial micropump, the microfluidic system not only provides improved mixing, but also eliminates certain problems associated with external tubing and connection.
AB - Even though microfluidics has been successfully used in minimizing complicated and onerous processes, the pumping and tubing systems used with it are yet undeveloped and need immediate development. The present study developed a fluttering bar-driven micropump, mounted on a polydimethylsiloxane microfluidic system. The pump consists of a rectangular ferromagnetic bar and a fan-shaped chamber with an inlet and outlet. Through various experiments, the net flow was examined as a function of chamber shape, inlet and outlet channel location, rotating center of the magnet, and rotational speed. Using high-speed camera and image analysis, the net flow was found to be generated by the fluid inertia associated with the varying reciprocating speeds of the bar inside the fan-shaped chamber. Depending on the locations of the inlet and outlet, the cycle time taken to circulate the loop was significantly reduced from 200 to 4 s. The flow rate of the micropump ranges from 48-225 μl/min, which is proportional to the rotational speed of the magnet (150-3000 rpm). Using a fluttering bar-driven inertial micropump, the microfluidic system not only provides improved mixing, but also eliminates certain problems associated with external tubing and connection.
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UR - http://www.scopus.com/inward/citedby.url?scp=85042160855&partnerID=8YFLogxK
U2 - 10.1063/1.5017902
DO - 10.1063/1.5017902
M3 - Article
AN - SCOPUS:85042160855
VL - 12
JO - Biomicrofluidics
JF - Biomicrofluidics
SN - 1932-1058
IS - 1
M1 - 014115
ER -