ArticleMicrosystems & nanoengineering2026
Curvature-driven passive mixing in three-dimensional conical helix micromixers.
Article in Microsystems & nanoengineering, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
5 authors.
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Abstract
Passive microfluidic mixing is fundamentally constrained by the dominance of laminar flow, a limitation commonly addressed using embedded obstacles or surface modifications, often at the cost of increased fabrication complexity and hydraulic resistance. Here, we introduce a conical helix micromixer (CHM) that combines circular and helical microchannel topologies into a monolithic geometry capable of passively generating progressively intensified Dean vortices through continuously varying curvature. This curvature-driven mechanism induces strong transverse transport and achieves a mixing index (MI) > 95% in the first turn of the CHM across varying flow rates (1-2500 µL min
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Registered trials
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