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:
Aug. 23, 2022
Filed:
Jul. 20, 2005
Peter Lea, Toronto, CA;
Thomas G. Ewart, Toronto, CA;
Stuart X. Carmichael, Toronto, CA;
Claude Ricks, Barrie, CA;
Peter Lea, Toronto, CA;
Thomas G. Ewart, Toronto, CA;
Stuart X. Carmichael, Toronto, CA;
Claude Ricks, Barrie, CA;
SQI DIAGNOSTICS SYSTEMS INC., Toronto, CA;
Abstract
The present invention provides a method of making an assay device for conducting an assay to detect a concentration of an analyte in a sample fluid. The assay devices would typically have a substantially planar surface having a series of site specific immobilized calibration spot arrays containing pre-determined quantities of the analyte printed thereon. In addition, a series of site specific immobilized test spot arrays, including capture antibody for binding the analyte protein is printed on the assay device. The method involves first modifying the planar surface to provide hydrophobic binding sites, hydrophilic linking and covalent bonding sites. Then the method requires printing the series of site specific immobilized test spot arrays and the series of site specific immobilized calibration spot arrays on the substantially planar surface. Applying the sample fluid to the assay device is the next step followed by testing a sensitivity of the assay and modulating ratios of the hydrophobic, hydrophilic and covalent binding sites in order to optimize the sensitivity of the assay.