Development of a passive liquid valve (PLV) utilizing a pressure equilibrium phenomenon on the centrifugal microfluidic platform.
Development of a passive liquid valve (PLV) utilizing a pressure equilibrium phenomenon on the centrifugal microfluidic platform.
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DOI:
10.3390/s150304658
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发表时间:
2015-02-25
期刊:
影响因子:
--
通讯作者:
Madou M
中科院分区:
文献类型:
--
作者:
Al-Faqheri W;Ibrahim F;Thio TH;Bahari N;Arof H;Rothan HA;Yusof R;Madou M
In this paper, we propose an easy-to-implement passive liquid valve (PLV) for the microfluidic compact-disc (CD). This valve can be implemented by introducing venting chambers to control the air flow of the source and destination chambers. The PLV mechanism is based on equalizing the main forces acting on the microfluidic CD (i.e., the centrifugal and capillary forces) to control the burst frequency of the source chamber liquid. For a better understanding of the physics behind the proposed PLV, an analytical model is described. Moreover, three parameters that control the effectiveness of the proposed valve, i.e., the liquid height, liquid density, and venting chamber position with respect to the CD center, are tested experimentally. To demonstrate the ability of the proposed PLV valve, microfluidic liquid switching and liquid metering are performed. In addition, a Bradford assay is performed to measure the protein concentration and evaluated in comparison to the benchtop procedure. The result shows that the proposed valve can be implemented in any microfluidic process that requires simplicity and accuracy. Moreover, the developed valve increases the flexibility of the centrifugal CD platform for passive control of the liquid flow without the need for an external force or trigger.
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影响因子:
3.7
作者:
Al-Faqheri W;Ibrahim F;Thio TH;Moebius J;Joseph K;Arof H;Madou M
通讯作者:
Madou M
影响因子:
6.1
作者:
Focke, Maximilian;Stumpf, Fabian;von Stetten, Felix
通讯作者:
von Stetten, Felix
影响因子:
3.2
作者:
Thio TH;Soroori S;Ibrahim F;Al-Faqheri W;Soin N;Kulinsky L;Madou M
通讯作者:
Madou M
影响因子:
8.4
作者:
Kazemzadeh, Amin;Ganesan, P.;Madou, Marc J.
通讯作者:
Madou, Marc J.
影响因子:
6.1
作者:
Garcia-Cordero, Jose L.;Kurzbuch, Dirk;Ricco, Antonio J.
通讯作者:
Ricco, Antonio J.