Patent ID: 7682797

Claim:
A method for identifying the source of a biological material comprising individual-specific antibodies, the method comprising: forming a two dimensional array comprising multiple antigens attached to a surface of a solid support in a preselected pattern such that identities and locations of the multiple antigens are known, wherein forming the array comprises attaching a first subset of antigens configured for obtaining an antibody profile and a second subset of at least one antigen configured for assaying for a selected analyte in a sample of a biological material having individual-specific antibodies and wherein attaching the second subset of at least one antigen comprises attaching at least one drug; obtaining a sample of a biological material having individual-specific antibodies and contacting the array with the sample to bind at least a portion of the individual-specific antibodies to the multiple antigens of the array, to form immune complexes; washing the array containing the immune complexes; detecting the immune complexes; identifying the immune complexes on the first subset of antigens, to obtain an antibody profile of the biological material; and comparing the obtained antibody profile with an antibody profile from a known individual thereby identifying the source of the biological material.