单个细菌的动态检测：驱动磁性微球载物台的非线性旋转速率漂移
Dynamic detection of a single bacterium: nonlinear rotation rate shifts of driven magnetic microsphere stages
摘要：
我们报告了一种新的技术，这是用于检测单一的大肠杆菌，是基于在一个外部磁场驱动的磁性微球的非线性旋转的变化。在2.0微米的磁性微球表面上存在一种大肠杆菌细菌，导致了系统阻力的容易测量的变化，因此，在非线性旋转速率。直接测量使用标准显微镜技术，并且观察到的非线性旋转速率的平均偏移改变了约3.8倍。
英文摘要：
We report on a new technique which was used to detect single Escherichia coli that is based on the changes in the nonlinear rotation of a magnetic microsphere driven by an external magnetic field. The presence of one Escherichia Coli bacterium on the surface of a 2.0 micron magnetic microsphere caused an easily measurable change in the drag of the system and, therefore, in the nonlinear rotation rate. The straight-forward measurement uses standard microscopy techniques and the observed average shift in the nonlinear rotation rate changed by a factor of ~3.8.
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