Apparatus and method for homogeneous immunoassay
First Claim
1. Apparatus for providing an immunoassay of a binding reaction between an ligand and an antiligand, includinga spatial pattern formed by a predetermined known spatially periodic array of stripes of antiligand material and with the stripes having a predetermined width and spacing,ligand material dispersed to interact with the spatially periodic array of stripes of antiligand material for producing a binding reaction between the ligand and the antiligand in the spatial pattern of stripes,means for labeling the binding reaction with a particular physical characteristic,a source of input energy and with the input energy at a particular spectrum for interacting with the particular physical characteristic of the labeled binding reaction,means for scanning the spatial pattern with the input energy at the particular spectrum for producing output energy having amplitude levels formed by a substantially random background component and a periodic component representing the labeled binding reaction, andmeans responsive to the output energy for detecting the periodic component representing the labeled binding reaction and for producing an output signal in accordance with the labeled binding reaction.
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Abstract
Apparatus and method for an immunoassay of a binding reaction between a ligand and an antiligand which are typically an antigen and an antibody, including a spatial pattern formed by a spatial array of separate regions of antiligand material, and ligand material dispersed to interact with the spatial array of separate regions of antiligand material for producing a binding reaction between the ligand and the antiligand in the spatial patterns and with the bound complexes labeled with a particular physical characteristic. A source of input energy and with the input energy at a particular spectrum for interacting with particular physical characteristic of the labeled binding reaction. Scanning the spatial pattern with the input energy at the particular spectrum for producing output energy having amplitude levels formed by a substantially random background component and a non-random component representing the labeled bound complexes, and the non-random component representing the labeled bound complexes detected to produce an output signal in accordance with the labeled binding reaction.
321 Citations
67 Claims
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1. Apparatus for providing an immunoassay of a binding reaction between an ligand and an antiligand, including
a spatial pattern formed by a predetermined known spatially periodic array of stripes of antiligand material and with the stripes having a predetermined width and spacing, ligand material dispersed to interact with the spatially periodic array of stripes of antiligand material for producing a binding reaction between the ligand and the antiligand in the spatial pattern of stripes, means for labeling the binding reaction with a particular physical characteristic, a source of input energy and with the input energy at a particular spectrum for interacting with the particular physical characteristic of the labeled binding reaction, means for scanning the spatial pattern with the input energy at the particular spectrum for producing output energy having amplitude levels formed by a substantially random background component and a periodic component representing the labeled binding reaction, and means responsive to the output energy for detecting the periodic component representing the labeled binding reaction and for producing an output signal in accordance with the labeled binding reaction.
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25. Apparatus for providing an immunoassay of a binding reaction between a ligand and an antiligand, including
a spatial pattern formed by a predetermined known spatial array of separate areas of antiligand material, ligand material dispersed to interact with the spatial array of separate areas of antiligand material for producing a binding reaction between the ligand and the antiligand in the spatial pattern, means for labeling the binding reaction with a particular physical characteristic, a source of input energy and with the input energy at a particular spectrum for interacting with the particular physical characteristic of the labeled binding reaction, means for scanning the spatial pattern with the input energy at the particular spectrum for producing output energy having amplitude levels formed by a substantially random background component and a non-random component representing the labeled binding reaction, and means responsive to the output energy for detecting the non-random component representing the labeled binding reaction and for producing an output signal in accordance with the labeled binding reaction.
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49. A method for providing an immunoassay of a binding reaction between a ligand and an antiligand including the following steps,
providing a spatial pattern formed by a predetermined known spatial array of separate areas of antiligand material, providing a ligand material dispersed to interact with the spatial array of separate areas of antiligand material for producing a binding reaction between the ligand and the antiligand in the spatial pattern, labeling the binding reaction with a particular physical characteristic, providing input energy at a particular spectrum for interacting with the paticular physical characteristic of the labeled binding reaction, scanning the spatial pattern with the input energy at the particular spectrum for producing output energy having amplitude levels formed by a substantially random background component and a non-random component representing the labeled binding reaction, and detecting the non-random component representing the labeled binding reaction and for producing an output signal in accordance with the labeled binding reaction.
Specification