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首页> 外文期刊>Japanese journal of applied physics >Simple Microfluidic Continuous Concentration of Microparticles with Different Dielectric Constants Using Dielectrophoretic Force in a V-Shaped Electrode Array
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Simple Microfluidic Continuous Concentration of Microparticles with Different Dielectric Constants Using Dielectrophoretic Force in a V-Shaped Electrode Array

机译:在V形电极阵列中利用介电泳力对具有不同介电常数的微粒进行简单的微流体连续浓缩

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摘要

We show here that the viscous drag and dielectrophoretic force generated in a V-shaped ladder electrode array in a microfluidic channel cause both attracted and repelled microparticles to move to the electrodes at the centre of the channel. Both Bacillus spores and 1-μm polystyrene spheres in a flow concentrated at the edges of V-shaped electrodes to which a 20Vpp 1 MHz AC voltage was applied. The results indicated the advantages of this simple setup for concentrating microparticles regardless of their dielectric constants, which is essential for highly precise cell separation and analysis.
机译:我们在这里显示,在微流体通道中的V形梯形电极阵列中产生的粘性阻力和介电泳力会导致吸引和排斥的微粒都移动到通道中心的电极。流中的芽孢杆菌孢子和1-μm聚苯乙烯球都集中在V型电极的边缘,向其施加20Vpp 1 MHz AC电压。结果表明,不管介电常数如何,这种用于浓缩微粒的简单设置均具有优势,这对于高度精确的细胞分离和分析至关重要。

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  • 来源
    《Japanese journal of applied physics》 |2010年第9issue1期|p.097002.1-097002.5|共5页
  • 作者

    Masahito Hayashi; Kenji Yasuda;

  • 作者单位

    Kanagawa Academy of Science and Technology, Kawasaki 213-0012, Japan;

    rnInstitute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda, Tokyo 101-0062, Japan;

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  • 正文语种 eng
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