The Dynamics of Spontaneous Capillary Flow in Confined and Open Microchannels

Capillary microfluidics or capillaries is gaining importance in the biotechnological domain. It combines the advantages of capillary actuation that does not require pumps or syringes to move the fluids, with low-cost fabrication, user-friendliness, portability and telemedicine compatibility. In this...

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Bibliographic Details
Published in:Sensors & transducers 2014-12, Vol.183 (12), p.123-123
Main Authors: Berthier, Jean, Gosselin, David, Villard, Noémie, Pudda, Catherine, Boizot, François, Costa, Guillaume, Delapierre, Guillaume
Format: Article
Language:English
Subjects:
Agreements
Capillarity
Capillary flow
Contact angle
Experiments
Fluid dynamics
Fluid flow
Fluids
Geometry
Pumps
Reynolds number
Spontaneous
Syringes
Telemedicine
Transducers
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Summary:Capillary microfluidics or capillaries is gaining importance in the biotechnological domain. It combines the advantages of capillary actuation that does not require pumps or syringes to move the fluids, with low-cost fabrication, user-friendliness, portability and telemedicine compatibility. In this work, we present expressions of the spontaneous capillary flow velocity in different geometrical configurations. It is shown that relatively large velocities - at the scale of microsystems - can be reached by capillary microflows. Consequently transport distances can be important.
ISSN:2306-8515
1726-5479