| US 7,572,593 B2 | ||
| Test cell for magnetic immunoreaction assay and method for producing same | ||
| Hiroshi Sawa, Nagoya (Japan); Masanori Nagai, Nagoya (Japan); Yoshinori Sugiura, Nagoya (Japan); Shigenori Hamaoka, Fukuoka (Japan); Kentaro Iwanaga, Anjo (Japan); Keiji Enpuku, Fukuoka (Japan); and Kohji Yoshinaga, Kitakyushu (Japan) | ||
| Assigned to Inoac Corporation, Aichi-ken (Japan) | ||
| Filed on Mar. 24, 2005, as Appl. No. 11/87,648. | ||
| Claims priority of application No. 2004-093246 (JP), filed on Mar. 26, 2004. | ||
| Prior Publication US 2005/0214934 A1, Sep. 29, 2005 | ||
| Int. Cl. G01N 33/53 (2006.01) | ||
| U.S. Cl. 435—7.1 [435/7.4; 435/7.9; 435/174; 436/501; 424/94.1] | 4 Claims |
| 1. A test cell,
consisting of a magnetically permeable resin material and a plastic film laminated on at least one face of the magnetically
permeable resin material,
wherein the magnetically permeable resin material comprises a concave portion member and a bottom surface member formed in
the concave portion,
wherein the magnetically permeable resin material and the plastic film have 30 ppb or less of magnetic metal content,
wherein the magnetically permeable resin material and the plastic film have a quantity of total residual magnetism of 15 pT
or less under a magnetic field of 0.1 T at a distance between the sample and a SQUID (superconducting quantum interference
device) sensor of 1.5 mm, and
wherein magnetic signals generated from an immunoreaction assay sample deposited on one surface of the test cell are detectable
from the other surface of the test cell by using the SQUID sensor after removal of the plastic film,
wherein the magnetically permeable resin material is poly(methyl methacrylate).
|