On-Chip Manipulation of Protein-Coated Magnetic Beads via Domain-Wall Conduits

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...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2010-06, Vol.22 (24), p.2706-2710
Main Authors: Donolato, Marco, Vavassori, Paolo, Gobbi, Marco, Deryabina, Maria, Hansen, Mikkel F., Metlushko, Vitali, Ilic, Bojan, Cantoni, Matteo, Petti, Daniela, Brivio, Stefano, Bertacco, Riccardo
Format: Article
Language:English
Subjects:
bio-nanotechnology
magnetic materials
magnetic nanoparticles
Magnetics
Microchip Analytical Procedures - methods
microfluidics
Microscopy
Microspheres
microstructures
Motion
Nanotechnology - instrumentation
Proteins - chemistry
Surface Properties
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Summary: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201000146