The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2009
Filed:
Aug. 29, 2007
Yukari Hataoka, Osaka, JP;
Yukari Hataoka, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The present invention provides an immunological assay suitable to be carried out on a chip. After an antigen-antibody complex in which an antigen to be measured and an antibody have bound to each other was obtained in a reaction chamber, the reaction chamber is washed using a sample solution and thereby the antigen-antibody complex and the antibody that has not bound to the antigen to be measured are separated from each other. According to the present invention, the reaction chamber can be washed to an extent that allows a signal reflecting the amount of the antigen to be measured to be detected with accuracy comparable to the case of using a wash solution without using a wash solution that is typified by Tris-HCl buffer that does not contain any antigens to be measured such as protein. Thus, it is not necessary to supply a wash solution from the outside of the chip or to allow a wash solution to be retained on the chip beforehand. Accordingly, an immunological assay can be carried out easily on a chip.