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Chen Jing-Jie   Mr.  Other 
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Chen Jing-Jie published an article in July 2017.
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Distribution of Articles published per year 
(2017)
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published in
 
1
 
Publications
CONFERENCE-ARTICLE 0 Reads 0 Citations <strong>STUDY OF A PASSIVE MICROMIXER BASED ON A</strong><strong>SKEW CORRUGATED MICROCHANNEL</strong> Chen Jie Published: 21 July 2017
The 7th International Multidisciplinary Conference on Optofluidics 2017, doi: 10.3390/optofluidics2017-04170
DOI See at publisher website ABS Show/hide abstract

In this paper, we present our study on a new type of passive micromixer based on a washboard microfluidic configuration. Periodic geometrical barriers like washboard are built inside a microfluidic channel that alters the flow patterns transversely and vertically. The advantages of this type of mixer is its mixing barriers are at the bottom of the microfluidic channel, and it does not need a complex 2-D or 3-D configurations to perform mixing process. This micromixer can easily be fabricated by one step SU-8 photolithographic process and one molding process. Solutions to be squeezed vertically and laterally while encounter the periodic barriers. Thus, the laminar flow pattern is distorted to create mixing process. To study the mixing mechanism of the skew corrugated micromixer, we study the mixing efficiency of washboard structures at three different angles, including 30, 45, and 60 degrees. Finite element simulations are conducted to study the mixing pattern and efficiency. Simulation results suggested that a skew corrugated microchannel with 45o angle can provide highest mixing efficiency, and a 95% mixing efficiency can be achieved within 8 stage within a 2.38 mm long microchannel.

CONFERENCE-ARTICLE 0 Reads 0 Citations <strong>Concentration Generator With On Chip Vacuum Pump </strong> Chen Jie Published: 17 July 2017
The 7th International Multidisciplinary Conference on Optofluidics 2017, doi: 10.3390/optofluidics2017-04143
DOI See at publisher website ABS Show/hide abstract

We present an innovative concentration generator with on chip vacuum pump. The concentration generator is contained the microfluidic channel and self-priming microfluidic device. The microfluidic channel structure is made up from polypropylene which characteristic are ultra-thin (under than 100 um), cost effective, mass producible, rapid fabrication process.  The self-priming microfluidic device also has many feature, like thin residual layer (under than 100 um), on chip new pumping method, standing alone device, minimal manual operation, commercialize. In this paper, we propose the design of microchannel which generating concentration gradient, and introduce the fabrication process, simulation, and experimental result. Due to all the advantages, we think this concentration generator system can be used on biochip.

CONFERENCE-ARTICLE 0 Reads 0 Citations <strong>A washboard-type passive micromixer</strong> Chen Jie Published: 17 July 2017
The 7th International Multidisciplinary Conference on Optofluidics 2017, doi: 10.3390/optofluidics2017-04141
DOI See at publisher website ABS Show/hide abstract

In this paper, we present our study on a new type of passive micromixer based on a washboard microfluidic configuration. Periodic geometrical barriers like washboard are built inside a microfluidic channel that alters the flow patterns transversely and vertically. The advantages of this type of mixer is its mixing barriers are at the bottom of the microfluidic channel, and it does not need a complex 2-D or 3-D configurations to perform mixing process. This micromixer can easily be fabricated by one step SU-8 photolithographic process and one molding process. Solutions to be squeezed vertically and laterally while encounter the periodic barriers. Thus, the laminar flow pattern is distorted to create mixing process. To study the mixing mechanism of the skew corrugated micromixer, we study the mixing efficiency of washboard structures at three different angles, including 30, 45, and 60 degrees. Finite element simulations are conducted to study the mixing pattern and efficiency. Simulation results suggested that a skew corrugated microchannel with 45o angle can provide highest mixing efficiency, and a 95% mixing efficiency can be achieved within 8 stage within a 2.38 mm long microchannel.

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