A DNA array sensor utilizing magnetic microbeads and magnetoelectronic detection

By M. Miller, P. Sheehan, R. Edelstein, C. Tamanaha, L. Zhong, S. Bounnak, L. Whitman, R. Colton. 2001

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Magnetoresistive-based biosensors and biochips. (2004, methodology): “GMR strip 5 £ 80 2.8 m m1 ,100 Yes [17, 22 ] GMR serpentine 200 (d) 2.8 m m1 0 .1000 Yes [23] Figure 4. Magnetic label signal measurement for spin valve and Hall cross sensors.”
Design and Performance of GMR Sensors for the Detection of Magnetic Microbeads in Biosensors (2003, methodology): “As discussed previously [13], this field has a maximum value”
Magnetic bead handling on-chip: new opportunities for analytical applications (2004, methodology): “A research group at the Naval Research Laboratory, Washington DC (Baselt et al. 1998; Edelstein et al. 2000; Miller et al. 2001; Rife et al. 2003), followed by others (Coehoorn and Prins 2003; Graham et al. 2003), have developed a microsystem for the capture and detection of micron-sized,…”
Magnetic sensors and their applications (2006, background): “The presence of the beads was detected by giant magnetoresistance (GMR) magnetoelectronic sensors embedded in the chip [70].”