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On‐Chip Manipulation of Protein‐Coated Magnetic Beads via Domain‐Wall Conduits
Author(s) -
Donolato Marco,
Vavassori Paolo,
Gobbi Marco,
Deryabina Maria,
Hansen Mikkel F.,
Metlushko Vitali,
Ilic Bojan,
Cantoni Matteo,
Petti Daniela,
Brivio Stefano,
Bertacco Riccardo
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201000146
Subject(s) - materials science , magnetic nanoparticles , magnetic field , chip , magnetic domain , nanotechnology , nanometre , domain wall (magnetism) , nanoscopic scale , nanoparticle , magnetization , composite material , physics , electrical engineering , engineering , quantum mechanics
Geometrically constrained magnetic domain walls (DWs) in magnetic nanowires can be manipulated at the nanometer scale. The inhomogeneous magnetic stray field generated by a DW can capture a magnetic nanoparticle in solution. On‐chip nanomanipulation of individual magnetic beads coated with proteins is demonstrated through the motion of geometrically constrained DWs in specially designed magnetic nanoconduits fully integrated in a lab‐on‐a‐chip platform.