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用移动磁阱操控标记和未标记的磁性细胞。

Manipulation of magnetically labeled and unlabeled cells with mobile magnetic traps.

机构信息

Department of Physics, The Ohio State University, Columbus, Ohio, USA.

出版信息

Biophys J. 2010 Feb 3;98(3):412-7. doi: 10.1016/j.bpj.2009.10.036.

Abstract

A platform of discrete microscopic magnetic elements patterned on a surface offers dynamic control over the motion of fluid-borne cells by reprogramming the magnetization within the magnetic bits. T-lymphocyte cells tethered to magnetic microspheres and untethered leukemia cells are remotely manipulated and guided along desired trajectories on a silicon surface by directed forces with average speeds up to 20 microm/s. In addition to navigating cells, the microspheres can be operated from a distance to push biological and inert entities and act as local probes in fluidic environments.

摘要

在表面上制作离散微观磁性元件的平台通过重新编程磁位中的磁化来提供对流体载体细胞运动的动态控制。通过定向力将与磁性微球连接的 T 淋巴细胞和未连接的白血病细胞远程操纵并沿着硅表面的期望轨迹引导,平均速度高达 20 微米/秒。除了引导细胞之外,微球还可以远距离操作,推动生物和惰性实体,并在流体环境中充当局部探针。

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