A Magnetic Biosensor System for Detection of E. coli

@article{Li2013AMB,
  title={A Magnetic Biosensor System for Detection of E. coli},
  author={Fuquan Li and J{\"u}rgen Kosel},
  journal={IEEE Transactions on Magnetics},
  year={2013},
  volume={49},
  pages={3492-3495}
}
This work describes a device for detecting E. coli bacteria by manipulating superparamagnetic beads to a sensing area and immobilizing them in a trapping well. The trapping well replaces the biochemical immobilization layer, which is commonly used in magnetic biosensor systems. A concept exploiting the volume difference between bare magnetic beads and magnetic bead-bioanalyte compounds is utilized to detect E. coli bacteria. Trapped beads are detected by the help of a tunnel magneto-resistive… CONTINUE READING

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