BIOSENSING METHOD USING COATED MAGNETIC FINE PARTICLES AND BIOSENSING APPARATUS FOR BIOSENSING METHOD
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United States of America Patent
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Issued Date -
Dec 23, 2010
app pub date -
Dec 1, 2008
filing date -
Dec 3, 2007
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Abandoned
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Abstract
An object of the present invention is to provide a novel biosensing method as the novel application development of the magnetic particles in the biosensing. In an affinity reaction of biosensing, ligands are immobilized to magnetic fine particles and the magnetic fine particles are forced to reaction fields of the affinity reaction by magnetic guiding so as to bring the affinity reaction, which is the velocity controlling factor in the sensing, to high rates. According to the present invention, coated magnetic fine particles with having both of the high dispersion performance and high magnetic responsibility as the above described magnetic fine particles and the affinity reaction occurs quickly and in high density such that the present invention makes it possible to obtain relatively large signals within significantly short time duration when compared to the conventional art.
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