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Magic microfluidic T-junctions: Valving and bubbling

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  • Wang, Liqiu
  • Zhang, Yuxiang
  • Cheng, Lin

Abstract

We develop and characterize a simple microfluidic component: a T-junction of two microfluidic channels conveying a gas and a liquid into the junction. It can either microvalve the two fluids or microbubble the gas with its functions switchable and controlled by the inlet pressure ratio of the two fluids. For the microvalving, it requires no actuating, moving and sealing components. Instead, the flow channels and the mechanisms of supplying the two fluids into them provide all these functions automatically. For microbubbling, it generates indistinguishable (monodispersed) bubbles steadily and stably with their size and generation frequency well-controlled.

Suggested Citation

  • Wang, Liqiu & Zhang, Yuxiang & Cheng, Lin, 2009. "Magic microfluidic T-junctions: Valving and bubbling," Chaos, Solitons & Fractals, Elsevier, vol. 39(4), pages 1530-1537.
    • Handle: RePEc:eee:chsofr:v:39:y:2009:i:4:p:1530-1537
    DOI: 10.1016/j.chaos.2007.06.020
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    References listed on IDEAS

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    3. Erik Winfree & Furong Liu & Lisa A. Wenzler & Nadrian C. Seeman, 1998. "Design and self-assembly of two-dimensional DNA crystals," Nature, Nature, vol. 394(6693), pages 539-544, August.
    4. J.-P. Raven & P. Marmottant & F. Graner, 2006. "Dry microfoams: formation and flow in a confined channel," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 51(1), pages 137-143, May.
    5. Andreas Terfort & Ned Bowden & George M. Whitesides, 1997. "Three-dimensional self-assembly of millimetre-scale components," Nature, Nature, vol. 386(6621), pages 162-164, March.
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    Cited by:

    1. Chen, Xueye & Lv, Honglin & Zhang, Yaolong, 2022. "A novel study on separation of particles driven in two steps based on standing surface acoustic waves," Chaos, Solitons & Fractals, Elsevier, vol. 162(C).

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