A new way to measure viscosity in droplet-based microfluidics for high throughput analysis

Abstract : In this work, we propose a new way to measure viscosity of samples in a microfluidic device. By analysing the shape of droplets after an expansion, we can measure the viscosity of the phase inside the droplet knowing the surface tension between the two liquids, the flow rate, the geometry of the channel and the viscosity of the continuous phase. This work paves the road for future high throughput studies in the framework of digital microfluidics.
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Estelle André, Nicolas Pannacci, Christine Dalmazzone, Annie Colin. A new way to measure viscosity in droplet-based microfluidics for high throughput analysis. Soft Matter, Royal Society of Chemistry, 2019, 15 (3), pp.504-514. ⟨10.1039/C8SM02372G⟩. ⟨hal-02060636⟩

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