On-Chip Manipulation of Protein-Coated Magnetic Beads via Domain-Wall Conduits
On-Chip Manipulation of Protein-Coated Magnetic Beads via Domain-Wall Conduits
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DOI：
10.1002/adma.201000146
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发表时间：
2010-06-25
影响因子：
29.4
通讯作者：
Bertacco, Riccardo
中科院分区：
文献类型：
--
作者：
Donolato, Marco;Vavassori, Paolo;Bertacco, Riccardo
磁性纳米线中的几何约束磁畴壁（DW）可以在纳米尺度上进行操纵。DW产生的非均匀杂散磁场可以捕获溶液中的磁性纳米颗粒。通过在完全集成在芯片实验室平台中的专门设计的磁性纳米导管中的几何约束DW的运动来证明涂覆有蛋白质的单个磁珠的芯片上纳米操纵。
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.