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.
On-Chip Manipulation of Protein-Coated Magnetic Beads via Domain-Wall Conduits
DONOLATO, MARCO;GOBBI, MARCO;CANTONI, MATTEO;PETTI, DANIELA;BRIVIO, STEFANO;BERTACCO, RICCARDO
2010-01-01
Abstract
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.File in questo prodotto:
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beads Adv_Mat_22_2706_2010.pdf
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