Detection of a single magnetic microbead using a miniaturized silicon Hall sensor

By P. Besse, G. Boero, M. Demierre, V. Pott, R. Popovic. 2002

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Magnetic bead handling on-chip: new opportunities for analytical applications (2004, methodology): “BesidesGMR sensors,measurements of singlemagnetic beads have been demonstrated using miniaturized silicon Hall sensors (Besse et al. 2002) and planar Hall effect sensors based on permalloy thin films (Ejsing et al. 2004).”
Micro-Hall devices: performance, technologies and applications (2003, methodology): “In our laboratory, we are developing devices and techniques for magnetometry [19], detection of magnetic microbeads [20], and magnetic resonance spectroscopy [21].”
The use of nanocrystals in biological detection (2004, background): “The detection limits may eventually be pushed down to the single molecule leve”
Design and Performance of GMR Sensors for the Detection of Magnetic Microbeads in Biosensors (2003, background): “0 Hall Sensor [10] 5.”
Pathogen detection: a perspective of traditional methods and biosensors. (2007, methodology): “…almost any detection method, e.g., optial, magnetic force microscopy, magnetoresistance (Bead Array ounter) (Baselt et al., 1998) and hall effect (Besse et al., 2002), O. Lazcka et al. / Biosensors and Bioe a a w a d f a i l t t ( n a t a t c fi t l 3 b d m i m a n w d t T t 3 s m ( d f e 2 f t…”