The fabrication of high sensitive spin-valve sensor for magnetic bead detection

2004 ◽  
Vol 201 (8) ◽  
pp. 1961-1964 ◽  
Author(s):  
Hyun Jong Kim ◽  
Sung Ho Jang ◽  
Kyu Hwan Oh ◽  
Tae Song Kim ◽  
Kwang Youn Kim
Keyword(s):  
Spin Valve ◽  
Magnetic Bead

Detection of single micron-sized magnetic bead and magnetic nanoparticles using spin valve sensors for biological applications

2003 ◽  
Vol 93 (10) ◽  
pp. 7557-7559 ◽  
Author(s):  
Guanxiong Li ◽  
Vikram Joshi ◽  
Robert L. White ◽  
Shan X. Wang ◽  
Jennifer T. Kemp ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Spin Valve ◽  
Magnetic Bead ◽  
Biological Applications

Magnetic Spin Valve Sensors with Different Geometry to Magnetic Bead Detection for Biosensor Application

2007 ◽  
Vol 1032 ◽  
Author(s):  
Jeong Dae Suh ◽  
Myung Ae Chung
Keyword(s):  
Magnetic Beads ◽  
Spin Valve ◽  
Magnetic Bead ◽  
Highly Sensitive ◽  
Magnetic Spin ◽  
Biosensor Application ◽  
Detection Of Biomolecules ◽  
Meander Line ◽  
Cross Type ◽  
Line Type

AbstractWe have demonstrated the use of highly sensitive spin valve sensors for the detection of micron magnetic beads. By using a ring type, cross type, and meander line type sensors, we were able to detect the presence of 2.8 μm size magnetic beads in real time by direct measurement of magnetic dipole fields from magnetic beads. The sensitivity of the ring, cross and meander line sensors were obtained about 50 μV/Oe, 7 μV/Oe, 30 μV/Oe and sensor output signals of 50 μV , 30 μV, 90 μV were obtained in an external applied field of 10 Oe and 1 mA sense current. Our results shows that ring, cross, and meander line shape spin valve sensors are very promising candidates for the detection of biomolecules with magnetic labels.

scholarly journals Optimization of planar Hall effect sensor for magnetic bead detection using spin-valve NiFe/Cu/NiFe/IrMn structures

2009 ◽  
Vol 187 ◽  
pp. 012056 ◽  
Author(s):  
Bui Dinh Tu ◽  
Le Viet Cuong ◽  
Do Thi Huong Giang ◽  
Tran Mau Danh ◽  
Nguyen Huu Duc
Keyword(s):  
Hall Effect ◽  
Spin Valve ◽  
Magnetic Bead ◽  
Planar Hall Effect ◽  
Hall Effect Sensor

On-chip manipulation and magnetization assessment of magnetic bead ensembles by integrated spin-valve sensors

2002 ◽  
Vol 91 (10) ◽  
pp. 7445 ◽  
Author(s):  
L. Lagae ◽  
R. Wirix-Speetjens ◽  
J. Das ◽  
D. Graham ◽  
H. Ferreira ◽  
...  
Keyword(s):  
Spin Valve ◽  
Magnetic Bead ◽  
On Chip

Optimization of spin-valve parameters for magnetic bead trapping and manipulation

2010 ◽  
Vol 322 (21) ◽  
pp. 3236-3239 ◽  
Author(s):  
Wendy R. Altman ◽  
John Moreland ◽  
Stephen E. Russek ◽  
Victor M. Bright
Keyword(s):  
Spin Valve ◽  
Magnetic Bead

The Annealing Effect of Spin-Valve-Like Ferromagnetic Tunnel Junction

1999 ◽  
Vol 23 (1_2) ◽  
pp. 49-51 ◽  
Author(s):  
H. Kikuchi ◽  
K. Kobayashi ◽  
M. Sato
Keyword(s):  
Tunnel Junction ◽  
Spin Valve ◽  
Annealing Effect
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