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Functional colloidal micro-sieves assembled and guided above a channel-free magnetic striped film

Journal Article


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.

UOW Authors


  •   Tierno, Pietro (external author)
  •   Martinez-Pedrero, Fernando (external author)
  •   Straube, Arthur V. (external author)
  •   Johansen, Tom H. (external author)

Publication Date


  • 2015

Citation


  • Martinez-Pedrero, F., Straube, A. V., Johansen, T. H. & Tierno, P. (2015). Functional colloidal micro-sieves assembled and guided above a channel-free magnetic striped film. Lab on a Chip: miniaturisation for chemistry, physics, biology, materials science and bioengineering, 15 (7), 1765-1771.

Scopus Eid


  • 2-s2.0-84924955961

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3839

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 1765

End Page


  • 1771

Volume


  • 15

Issue


  • 7

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.

UOW Authors


  •   Tierno, Pietro (external author)
  •   Martinez-Pedrero, Fernando (external author)
  •   Straube, Arthur V. (external author)
  •   Johansen, Tom H. (external author)

Publication Date


  • 2015

Citation


  • Martinez-Pedrero, F., Straube, A. V., Johansen, T. H. & Tierno, P. (2015). Functional colloidal micro-sieves assembled and guided above a channel-free magnetic striped film. Lab on a Chip: miniaturisation for chemistry, physics, biology, materials science and bioengineering, 15 (7), 1765-1771.

Scopus Eid


  • 2-s2.0-84924955961

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3839

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 1765

End Page


  • 1771

Volume


  • 15

Issue


  • 7