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首页> 外文期刊>Applied Physicsletters >Toward a magnetoresistive chip cytometer: Integrated detection of magnetic beads flowing at cm/s velocities in microfluidic channels
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Toward a magnetoresistive chip cytometer: Integrated detection of magnetic beads flowing at cm/s velocities in microfluidic channels

机译：迈向磁阻芯片细胞仪：集成检测微流体通道中以cm / s速度流动的磁珠

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摘要

This work describes an integrated device comprising microfluidic channels and incorporated spin-valve sensors sensitive enough to count, determine the magnetic orientation, flowing height, and speed of single micron-sized magnetic beads moving with velocities of 8-35 mm/s. Sensor signals of 3-100 μV_(p-p) correspond to bead moments at different directions indicating a physical rotation of the beads and a slow response (seconds) of the bead moment to magnetizing field changes.
机译：这项工作描述了一种集成设备，该设备包括微流体通道和并入的旋转阀传感器，其灵敏度足以计数，确定磁性方向，流动高度和以8-35 mm / s的速度运动的单个微米大小的磁珠的速度。 3-100μV_（p-p）的传感器信号对应于不同方向上的磁珠力矩，指示磁珠的物理旋转以及磁珠矩对磁化场变化的缓慢响应（秒）。

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  • 来源
    《Applied Physicsletters》 |2009年第3期|034104.1-034104.3|共3页
  • 作者

    J. Loureiro; R. Ferreira; S. Cardoso; P. P. Freitas; P. P. Freitas; C. Fermon; G. Arrias; M. Pannetier-Lecoeur; F. Rivadulla; J. Rivas;

  • 作者单位

    INESC-MN/Institute for Nanosciences and Nanotechnologies, R. Alves Redol 9, 1000-029 Lisbon, Portugal and Institute Superior Tecnico, Universidade Tecnica de Lisboa, 1049-001 Lisbon, Portugal;

    INESC-MN/Institute for Nanosciences and Nanotechnologies, R. Alves Redol 9, 1000-029 Lisbon, Portugal and Institute Superior Tecnico, Universidade Tecnica de Lisboa, 1049-001 Lisbon, Portugal;

    INESC-MN/Institute for Nanosciences and Nanotechnologies, R. Alves Redol 9, 1000-029 Lisbon, Portugal and Institute Superior Tecnico, Universidade Tecnica de Lisboa, 1049-001 Lisbon, Portugal;

    INESC-MN/Institute for Nanosciences and Nanotechnologies, R. Alves Redol 9, 1000-029 Lisbon, Portugal and Institute Superior Tecnico, Universidade Tecnica de Lisboa, 1049-001 Lisbon, Portugal;

    INESC-ID, R. Alves Redol 9, 1000-029 Lisbon, Portugal and Instituto Superior Tecnico, Universidade Tecnica de Lisboa, 1049-001 Lisbon, Portugal;

    DSM/IRAMIS/SPEC, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France;

    DSM/IRAMIS/SPEC, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France;

    DSM/IRAMIS/SPEC, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France;

    Dpto. Quimica-Fisica y Fisica Aplicada, Universidad de Santiago de Compostela, 15782-Santiago de Compostela, Spain;

    Dpto. Quimica-Fisica y Fisica Aplicada, Universidad de Santiago de Compostela, 15782-Santiago de Compostela, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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