Miles Laboratories, Inc.

Thomas M Li

John F Burd

Robert T Buckler

Jeffrey L Benovic

Robert J Carrico

James P Albarella

Alfred C Greenquist

Bert Walter

Richard J Tyhach

Patricia A Rupchock

A homogeneous specific binding assay device, a method for its preparation, and a method for its use in determining a ligand, such as antigen, hapten, or antibody, in, or the ligand binding capacity of, a liquid sample. The test device comprises a solid carrier member, such as a fibrous web matrix, e.g., paper, or a polymeric film or gel, incorporated with reagents for a homogeneous specific binding assay system which produces a detectable response, usually an electromagnetic radiation signal, that is a function of the presence or amount of the ligand in or the ligand binding capacity of the sample. Useful homogeneous specific binding assay systems include those involving enzyme substrate labels, enzyme prosthetic group labels, and enzyme labels. The detectable response preferably is a luminescent, fluorescent, spectrophotometric, or colorimetric response, which is measurable by visual observation or instrument means.

Multilayer homogeneous specific binding assay device

Immunoassay method and reagent means for determining theophylline in biological fluids such as serum. The antibody employed in the method is prepared from an immunogen comprising theophylline coupled at its 9-position to an immunogenic carrier material.

#3B theophylline immunoassay employing 9-theophylline reagents

Theophylline immunogens, antibodies prepared therefrom, labeled theophylline conjugates, synthetic intermediates, and the use of such antibodies and labeled conjugates in immunoassays for determining theophylline. The immunogens comprise theophylline coupled at its 9-position to an immunogenic carrier material. Likewise, the labeled conjugates and synthetic intermediates are 9-position derivatives of theophylline or synthetic precursors thereof. The antibody and labeled reagents are particularly useful in homogeneous nonradioisotopic immunoassays for measuring theophylline in biological fluids such as serum.

Theophylline immunogens, antibodies, labeled conjugates, and related

Intermediates in the preparation of 9-position derivatives of theophylline useful in synthesizing theophylline immunogens and labeled conjugates. The labeled conjugates and the antibodies produced against the immunogens are particularly useful in homogeneous nonradioisotopic immunoassay for measuring theophylline in biological fluids such as serum.

6-[N-(.omega.-Carboxyalkyl)amino]-1,3-dimethyl-5-formamidouracils

Immunogen conjugates comprising N-aminoalkyl derivatives of iodothyronines, e.g., thyroxine and its lower alkyl esters, coupled to an immunogenic carrier material, and antibodies raised against such immunogen conjugates.

Iodothyronine immunogens and antibodies

N-Aminoalkyl derivatives of iodothyronines, e.g., thyroxine and its lower alkyl esters, immunogen conjugates comprising the derivatives coupled to an immunogenic carrier material, and antibodies raised against such immunogen conjugates.

N-Aminoalkyl iodothyronine derivatives

A homogeneous specific binding assay method and reagent means for determining a ligand, such as a hapten, antigen or antibody, in, or the ligand binding capacity of, a liquid medium employing a labeled conjugate which upon enzymatic cleavage produces a detectable indicator product. The improvement comprises employing as the label component in the labeled conjugate, a residue having the formula:

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Elkhart, IN, United States of America

Thomas M Li