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Biological sensing applications using Micro Magnetics' miniaturized magnetic tunnel junction field sensors

A group of researchers [1] at IBM, Columbia, and Stanford recently used Micro Magnetics' micron-size magnetic tunnel junction sensors to successfully detect single magnetic nanoparticles. The group's results demonstrate that the small active area and sensitivity of our SpinTJ (TM) devices make them an ideal fit
for use in the emerging applications area of "lab-on-a-chip" detectors. In addition, our SpinTJ sensors show great promise for a number of other cutting-edge biomagnetic applications.

Last year, researchers at Brown University [2] used our SpinTJ magnetic sensors to detect single superparamagnetic magnetic beads in solution. This result, published in Applied Physics Letters, was the first
successful usage of magnetic tunneling junction sensors in this biological application.

Contact Micro Magnetics for more information on the biological applications of our SpinTJ magnetic sensor
products.

References:

1. S.G. Grancharov et. al., J. Phys. Chem. B 109, p. 13030 (2005).

2. W. Shen et. al., Appl. Phys. Lett. 86, art. no. 253901 (2005).

For further information please contact:

Micro Magnetics, Inc.
617 Airport Road
Fall River, MA 02720
Phone: (508) 672-4489
Sales@micromagnetics.com
www.micromagnetics.com

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