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Appl. Sci. 2016, 6(12), 385; doi:10.3390/app6120385

Microfluidic Fabrication Solutions for Tailor-Designed Fiber Suspensions

1,2,3,†
,
1,2,3
and
1,2,3,4,*
1
Laboratoire de Physique et Mécanique des Milieux Hétérogènes (PMMH), CNRS, ESPCI Paris, PSL Research University, 10 rue Vauquelin, 75005 Paris, France
2
Laboratoire de Physique et Mécanique des Milieux Hétérogènes (PMMH), University Pierre et Marie Curie, Sorbonne-Universités, 10 rue Vauquelin, 75005 Paris, France
3
Laboratoire de Physique et Mécanique des Milieux Hétérogènes (PMMH), Paris Diderot University, Université Sorbonne Paris Cité, 10 rue Vauquelin, 75005 Paris, France
4
Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo 060-0808, Japan
Current address: TOTAL SA, Avenue Larribau Pau CEDEX 64018, France.
*
Author to whom correspondence should be addressed.
Academic Editor: Francisco José Galindo Rosales
Received: 3 October 2016 / Revised: 14 November 2016 / Accepted: 15 November 2016 / Published: 30 November 2016
(This article belongs to the Special Issue Applications of Complex Fluids)
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Abstract

Fibers are widely used in different industrial processes, for example in paper manufacturing or lost circulation problems in the oil industry. Recently, interest towards the use of fibers at the microscale has grown, driven by research in bio-medical applications or drug delivery systems. Microfluidic systems are not only directly relevant for lab-on-chip applications, but have also proven to be good model systems to tackle fundamental questions about the flow of fiber suspensions. It has therefore become necessary to provide fiber-like particles with an excellent control of their properties. We present here two complementary in situ methods to fabricate controlled micro-fibers allowing for an embedded fabrication and flow-on-a-chip platform. The first one, based on a photo-lithography principle, can be used to make isolated fibers and dilute fiber suspensions at specific locations of interest inside a microchannel. The self-assembly property of super-paramagnetic colloids is the principle of the second fabrication method, which enables the fabrication of concentrated suspensions of more flexible fibers. We propose a flow gallery with several examples of fiber flow illustrating the two methods’ capabilities and a range of recent laminar flow results. View Full-Text
Keywords: micro-fluidics; fibers; fiber suspensions; fluid-structure interactions; flexible fibers micro-fluidics; fibers; fiber suspensions; fluid-structure interactions; flexible fibers
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Berthet, H.; du Roure, O.; Lindner, A. Microfluidic Fabrication Solutions for Tailor-Designed Fiber Suspensions. Appl. Sci. 2016, 6, 385.

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