Microstripes for transport and separation of magnetic particles

被引：26

作者：

Donolato, Marco ^{[1
,2
]}

Dalslet, Bjarke Thomas ^{[1
]}

Hansen, Mikkel Fougt ^{[1
]}

机构：

[1] Tech Univ Denmark, DTU Nanotech, Dept Micro & Nanotechnol, DK-2800 Lyngby, Denmark

[2] CIC NanoGUNE Consolider, San Sebastian 20009, Spain

来源：

BIOMICROFLUIDICS | 2012年 / 6卷 / 02期

关键词：

DOMAIN-WALL CONDUITS; BEADS;

D O I：

10.1063/1.4704520

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

We present a simple technique for creating an on-chip magnetic particle conveyor based on exchange-biased permalloy microstripes. The particle transportation relies on an array of stripes with a spacing smaller than their width in conjunction with a periodic sequence of four different externally applied magnetic fields. We demonstrate the controlled transportation of a large population of particles over several millimeters of distance as well as the spatial separation of two populations of magnetic particles with different magnetophoretic mobilities. The technique can be used for the controlled selective manipulation and separation of magnetically labelled species. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4704520]

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