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Microfluidic bypass for efficient passive regulation of droplet traffic

G. Cristobal, J.-P.Benoit,, M. Joanicot and A. Ajdari — Applied Physics Letters 89 (2006) 034104

publié le , mis à jour le

We propose a simple design for microfabricated junctions that allows an equal and regular
distribution of droplets between the two outlets of a T junction. It relies on establishing a connection
between the two outlets shortly after the junction to provide short-time memory to the device and
induce perfect alternation in the choice of the outlet. We experimentally demonstrate the benefits of
this simple passive device by a direct comparison to junctions without bypasses.

- Publié dans Applied Physics Letters