dorsal/arxiv
View SchemaDynamic detection of a single bacterium: nonlinear rotation rate shifts of driven magnetic microsphere stages
| Authors | Brandon H. McNaughton, Rodney R. Agayan, Raoul Kopelman |
|---|---|
| Categories | |
| ArXiv ID | physics/0610144 |
| URL | https://arxiv.org/abs/physics/0610144 |
Abstract
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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"abstract": "We report on a new technique which was used to detect single Escherichia coli\nthat is based on the changes in the nonlinear rotation of a magnetic\nmicrosphere driven by an external magnetic field. The presence of one\nEscherichia Coli bacterium on the surface of a 2.0 micron magnetic microsphere\ncaused an easily measurable change in the drag of the system and, therefore, in\nthe nonlinear rotation rate. The straight-forward measurement uses standard\nmicroscopy techniques and the observed average shift in the nonlinear rotation\nrate changed by a factor of ~3.8.",
"arxiv_id": "physics/0610144",
"authors": [
"Brandon H. McNaughton",
"Rodney R. Agayan",
"Raoul Kopelman"
],
"categories": [
"physics.bio-ph"
],
"title": "Dynamic detection of a single bacterium: nonlinear rotation rate shifts of driven magnetic microsphere stages",
"url": "https://arxiv.org/abs/physics/0610144"
},
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