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Chem Soc Rev. 2010 Mar;39(3):1073-95. doi: 10.1039/b909366b. Epub 2009 Dec 1.

Nanofluidics, from bulk to interfaces.

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1
Laboratoire de Physique de la Matière Condensée et des Nanostructures, Université Lyon 1 and CNRS, UMR 5586, 43 Bvd. du 11 Nov. 1918, 69622 Villeurbanne Cedex, France. lyderic.bocquet@univ-lyon1.fr

Abstract

Nanofluidics has emerged recently in the footsteps of microfluidics, following the quest for scale reduction inherent to nanotechnologies. By definition, nanofluidics explores transport phenomena of fluids at nanometer scales. Why is the nanometer scale specific? What fluid properties are probed at nanometric scales? In other words, why does 'nanofluidics' deserve its own brand name? In this critical review, we will explore the vast manifold of length scales emerging for fluid behavior at the nanoscale, as well as the associated mechanisms and corresponding applications. We will in particular explore the interplay between bulk and interface phenomena. The limit of validity of the continuum approaches will be discussed, as well as the numerous surface induced effects occurring at these scales, from hydrodynamic slippage to the various electro-kinetic phenomena originating from the couplings between hydrodynamics and electrostatics. An enlightening analogy between ion transport in nanochannels and transport in doped semi-conductors will be discussed (156 references).

PMID:
20179826
DOI:
10.1039/b909366b

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