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Title:	Functional colloidal micro-sieves assembled and guided above a channel-free magnetic striped film
Author:	Martinez Pedrero, Fernando; Straube, Arthur; Johansen, Tom H.; Tierno, Pietro
Other authors:	Universitat de Barcelona
Abstract:	Colloidal inclusions in lab-on-a-chip devices can be used to perform analytic operations in a non-invasive fashion. We demonstrate here a novel approach to realize fast and reversible micro-sieving operations by manipulating and transporting colloidal chains via mobile domain walls in a magnetic structured substrate. We show that this technique allows one to precisely move and sieve non-magnetic particles, to tweeze microscopic cargos or to mechanically compress highly dense colloidal monolayers.
Subject(s):	-Col·loides -Nanotecnologia -Colloids -Nanotechnology
Rights:	(c) Martinez Pedrero, Fernando et al., 2015
Document type:	Article Article - Accepted version
Published by:	Royal Society of Chemistry
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