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The mixing of fluids in microfluidics can be performed in various ways. One way is using micromixers with so-called folding flow techniques. Folding flow micromixers consist of a chain of elements. In each element the flow is folded upon itself, decreasing the length scale for mixing and thus reducing the mixing time. Other advantages of micromixers are the reduction of the quantities of fluids involved and stable environmental conditions. Folding flow micromixers are also less sensitive to clogging compared to split and recombine mixers. Micronit offers two types of folding flow Micromixers in the web store, the teardrop and swirl micromixer.

Teardrop Micromixer

The teardrop micromixer has a powder blasted channel pattern equipped with a teardrop mixing structure. This makes the teardrop mixer particularly suitable for fast and efficient mixing of fluids with relative low Reynolds numbers (Re <100). The flow is folded by the splitting and recombining of the channels in the micromixer.

Swirl Micromixer

The Swirl micromixer is used for mixing fluids with relatively high Reynolds numbers (Re >50). The powder blasted swirl structure causes fast and efficient mixing of the fluids. This is realised by using double swirl chambers that rapidly spirals down the fluid.

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Fields and applications

  • Analytical chemistry
  • Pharmaceutical industry
  • Biochemical analysis
  • High-throughput synthesis 
  • Chemical industry
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Choose your configuration

You can either get the teardrop or swirl mixer. Both are folding flow micromixers with a difference in Reynolds number. 

We can help

Our team is always ready and willing to answer any questions you may have.


Tailoring your device

Create your own micromixer using miproto in our web store if you require a different mixing principle.