Magic microfluidic T-junctions: Valving and bubbling

Liqiu Wang, Yuxiang Zhang, Lin Cheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1530-1537
Number of pages8
JournalChaos, Solitons and Fractals
Issue number4
Publication statusPublished - 28 Feb 2009
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • General Mathematics
  • General Physics and Astronomy
  • Applied Mathematics


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