Encyclopedia of Microfluidics and Nanofluidics

Living Edition
| Editors: Dongqing Li

Centrifugal Microfluidics

  • Jens Ducrée
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27758-0_203-2

Synonyms

Definition

Centrifugal microfluidic technologies use the inertial pseudo forces experienced in a rotating reference frame to transport and manipulate fluids, overwhelmingly liquids, through networks of microchannels and chambers on substrates which are often in the format of a disk. These density-dependent pseudo forces are the centrifugal force scaling with the square of the frequency of rotation, the Euler force which is associated with an accelerated rotational motion, and the Coriolis force acting on flows through rotating channels. Unit operations such as valving, routing, metering, and mixing often result from the interplay of the rotational forces, capillary flow control, and/or siphon-like structures. Centrifugal microfluidic systems typically comprise a polymeric substrate with the size of a compact disk incorporating a planar microchannel network and an actuation unit...

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Biomedical Diagnostics Institute (BDI), National Centre for Sensor ResearchDublin City UniversityDublinIreland