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:
May. 17, 1988
Filed:
Jan. 14, 1985
Applicant:
Inventor:
Robert S Molday, Vancouver, CA;
Assignee:
University of British Columbia, Vancouver, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
424-3 ; 424132 ; 424147 ; 424493 ; 514-6 ; 514 59 ; 128653 ; 536 51 ;
Abstract
Colloidal sized particles comprising metal particle coated with a water soluble polysaccharide derivative. The derivative is such that when it is not coating the metal, it has at least one, and preferably a number, of pendant functional groups each of which has a positive charge in aqueous solution. The metal is preferably selected from the group consisting of gold, platinum, and silver, whereas the polysaccharide may usefully be selected from the group consisting of dextran and mannan. The particles can be used as markers for biologically active molecules, or for separating different types of such molecules.