Single particle demultiplexer based on domain wall conduits
Single particle demultiplexer based on domain wall conduits
复制标题
基于畴壁导管的单粒子解复用器
DOI：
10.1063/1.4755785
复制
发表时间：
2012
影响因子：
4
通讯作者：
R. Bertacco
中科院分区：
文献类型：
--
作者：
A. Torti;V. Mondiali;A. Cattoni;M. Donolato;E. Albisetti;A. Haghiri;P. Vavassori;R. Bertacco
在芯片表面上携带分子或生物实体的微米和纳米尺寸的磁性颗粒的远程操纵对于未来生物学和医学中的芯片上应用至关重要。在本文中，我们提出了一种方法，用于在芯片上解复用的单个磁性粒子使用分叉的磁性纳米管道的传播的约束畴壁（DW）。我们表明，控制注入和传播的畴壁在分叉允许捕获，运输，和分拣两个预定义的路径之间的单个磁性粒子。这种构建块的n级级联允许实现各种复杂的分类设备，例如，一解多工器，用于在2n个路径之间进行受控排序。
The remote manipulation of micro and nano-sized magnetic particles carrying molecules or biological entities over a chip surface is of paramount importance for future on-chip applications in biology and medicine. In this paper, we present a method for the on-chip demultiplexing of individual magnetic particles using bifurcated magnetic nano-conduits for the propagation of constrained domain walls (DWs). We demonstrate that the controlled injection and propagation of a domain wall in a bifurcation allow capturing, transporting, and sorting a single magnetic particle between two predefined paths. The cascade of n levels of such building blocks allows for the implementation of a variety of complex sorting devices as, e.g., a demultiplexer for the controlled sorting among 2n paths.