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Class 436/538 - Separation of immune complex from unbound antigen or antibody


Subclass of Class 436 - Chemistry: analytical and immunological testing
Definition: Subject matter in which excess antigen or antibody is separated
No. of patents: 518
Last issue date: 06/07/2011


1                      
NumberTitleIssue Date
7955867High throughput cell-based assays, methods of use and kits
In the present invention cells are placed in a multiwell plate and grown. When the assay is to be performed, one uses gravity to wash away any unbound ligands rather than vacuum or centrifugation. The cells are then examined to detect the bound ligand. To perform th...
06/07/2011
7429458Methods of using bioelastomers
Bioelastomers are disclosed for use in methods of binding compounds including immunoassay methods, in biosensors and methods or regenerating biosensors, and in methods for targeting the delivery of a compound to a particular location within an animal subjects. In ge...
09/30/2008
7402399Receptor tyrosine kinase signaling pathway analysis for diagnosis and therapy
The invention provides a method for determining the activation status of receptor tyrosine kinase (RTK) pathways in either cell samples or patient samples by measuring receptor dimerization and relative amounts of protein-protein complexes or activated effector prot...
07/22/2008
7390626Methods and kit for diagnosing tick borne illnesses
ELISA, Western Blot, and a peptide-based ELISA were applied to clinical specimens from patients with clinical symptoms of tick borne diseases, including Lyme disease. Peptides from different components of Borrelia during different cycles, including peptides f...
06/24/2008
7371584Multi-functional and configurable assay
Novel magnetic assay methods and systems. According to a preferred embodiment, a chromatographic medium is provided that is designed to be contacted with a test solution having activated magnetic particles such that the solution flows bilaterally thereacross. A magn...
05/13/2008
7364906Products and methods for single parameter and multiparameter phenotyping of cells
A method of single parameter and multiparameter characterizing of cells, particularly immunophenotyping of cells, is provided. The method preferably uses antibody-coated microspheres which are adapted to bind to specific types of cells. One or more sets of coated mi...
04/29/2008
7361480Method and means for detecting gluten-induced diseases
The invention is directed to a method of detecting gluten-induced diseases such as e.g. celiac disease and dermatitis herpetiformis. Said diseases are indicated by the presence of autoantibodies against tissue transglutaminase tTG in the blood The test is carried ou...
04/22/2008
7354773Method and apparatus for preparing cell samples for intracellular antigen detection using flow cytometry
A method and apparatus for preparing biological cell samples for intracellular analysis. The invention is based upon the recognition that many of the steps of the conventional methods for such sample preparation can be eliminated, leading to a process that readily l...
04/08/2008
7354614Diagnostic device
A diagnostic device 1 for performing an immunochromatographic analysis of a sample is disclosed. The diagnostic device 1 comprises a porous substrate 10 for performing the analysis and a pre-filter 30 to remove solid components, such as s...
04/08/2008
7354776Method of processing and testing powdered samples using immunochromatographic strip tests
A method and kit for processing and testing powdered samples are provided herein. The powdered sample is combined with a fluid to produce a slurry or liquid suspension, and the slurry is contacted with an immunochromatographic test strip containing detectable reagen...
04/08/2008
7354733Method for sorting and separating living cells
We disclose methods of sorting or separating mixtures of living cells (e.g., eukaryotic, prokaryotic, mammalian, pathogenic, bacterial, viral, etc.). We perform our methods by activating cell-selective photophoric labels, which photosensitize and chemically reduce a...
04/08/2008
7351589Products and methods for single parameter and multiparameter phenotyping of cells
A method of single parameter and multiparameter characterizing of cells, particularly immunophenotyping of cells, is provided. The method preferably uses antibody coated microspheres which are adapted to bind to specific types of cells. One or more sets of coated mi...
04/01/2008
7348185Method and apparatus for capturing target substance
A method for capturing a target substance in a sample, comprising the steps of preparing particles capable of capturing the target substance in a dispersed state in a fluid, aggregating the particles, and allowing the particles to capture the target substance in the...
03/25/2008
7344849Assay
The present invention relates to assay methods for the determination of cobalamin or vitamin B12 in a body fluid and in particular to assay methods for the metabolically active pool of cobalamin, comprising contacting a cell free sample of a body fluid wi...
03/18/2008
7338809Method for assaying whole blood
In a method for measuring an analyte, which comprises a reaction step of forming a reaction system including a sample containing whole blood, a first substance carried by a solid carrier and specifically binding to an analyte contained in the sample and a second sub...
03/04/2008
7335470Compilations of nucleic acids and arrays and methods of using them
In one aspect the invention provides compilations of nucleic acids, articles of manufacture, e.g., arrays, and methods for the detection of chromosomal abnormalities, such as a chromosomal aneuploidies, deletions, amplifications, and the like, and the diagnosis or p...
02/26/2008
7320893Lipoprotein fingerprinting methods using metal ion chelate salts
Methods are disclosed which separate and identify lipoproteins in biological samples. An ultracentrifuge density gradient is used to separate lipoprotein fractions. The fractions are visualized, resulting in a lipoprotein profile. The fractions can be further analyz...
01/22/2008
7314763Fluidics-based assay devices
A fluidics-based assay device for detecting the presence or quantity of an analyte residing in a test sample is provided. The device utilizes a self-calibrated magnetic binding assay format (e.g., sandwich, competitive, etc.) that includes detection probes capable o...
01/01/2008
7309723Redox polymer nanoparticles
The invention provides nanoparticles comprising one or more redox-active species, methods of making such nanoparticles, and methods for using such nanoparticles, for example, as diagnostic agents for the detection of various analytes. ...
12/18/2007
7309615High quantum yield acridinium compounds and their uses in improving assay sensitivity
The present invention relates to hydrophilic, high quantum yield acridinium compounds. It has been discovered that the placement of electron-donating groups in the acridinium ring system increases the amount of light that is emitted by the corresponding acridinium c...
12/18/2007
7291473Screening process for atopic dermatitis
The present invention provides a process of screening patients for atopic dermatitis. The process includes the step of determining, in sera of the patient, the presence of antibodies against nuclear antigens such as transcription co-activator p75, wherein the presen...
11/06/2007
7285424Membrane-based assay devices
A membrane-based assay device for detecting the presence or quantity of an analyte residing in a test sample is provided. The device utilizes a self-calibrated magnetic binding assay format (e.g., sandwich, competitive, etc.) that includes detection probes capable o...
10/23/2007
7271009Multi-analyte diagnostic test for thyroid disorders
Immunological assays for several biological markers for thyroid disorders in a biological sample are performed in a single test with a combination of sandwich-type, sequential competitive, and serological assays by the use of particles classified into groups that ar...
09/18/2007
7252961Competitive immunoassay using complexed analyte derivatives
The invention relates to a method for the detection of an analyte in a competitive immunoassay in the presence of an analyte derivative and first and second receptor molecules, and to a kit for carrying out this detection method. ...
08/07/2007
7232690Method and device for detecting and isolating pharmacological compounds being contained in substance mixtures
A process for isolating and/or identifying at least one active chemical substance from a mixture of active and inactive chemical substances, is characterized by the steps: a) adding a target to said mixture and forming a complex of...
06/19/2007
7205159Diagnostic testing process and apparatus
A method and apparatus for use in a flow through assay process is disclosed. The method is characterised by a “pre-incubation step” in which the sample which is to be analysed, (typically for the presence of a particular protein), and a detection analyte (typica...
04/17/2007
7193066Preparation of highly pure toxin fragments
Toxin derivatives are prepared by proteolytic treatment of holotoxin, and their toxicity is reduced by contacting the preparation with a ligand, which can be a metal or an antibody or another ligand. This ligand selectively binds to the toxin but not to the toxin de...
03/20/2007
7192784Method of measurement in chromatography
A substantial amount of a marker reagent associated with a measurement is measured in a marker reagent measurement area, and the substantial amount of the marker reagent is reflected by a result obtained in a reaction result measurement area where a reaction with a ...
03/20/2007
7179592Size-exclusion-based extraction of affinity ligands and active compounds from natural samples
The invention encompasses an improved, rapid, size-exclusive method for screening for small molecular weight ligands that bind specifically to a protein target, using size-exclusion separation, ultrafiltration, and mass spectrometry. ...
02/20/2007
7176036Electroactive microspheres and methods
Methods and devices for electrochemical detection of a specific binding pair member utilizing a microsphere with an incorporated electroactive marker, wherein a member of the specific binding pair to be detected is bound, directly or through one or more intermediate...
02/13/2007
7173125Triphosphate oligonucleotide modification reagents and uses thereof
Hydrazino, oxyamino and carbonyl-based monomers and methods for incorporation into oligonucleotides during enzymatic synthesis are provided. Modified oligonucleotides are provided that incorporate the monomers provided herein. Immobilized oligonucleotides and oligon...
02/06/2007
7169618Magnetic particles and methods of producing coated magnetic particles
An improved method for separating materials is provided, using colloidal, magnetizable aggregates, optionally silanized, and coated with a one or more layers of novel polysaccharide derivatives. Materials separated by the aggregates of the invention include inorgani...
01/30/2007
7169278Apparatus and separation media for separating particles in free-flow electrophoresis
A free-flow electrophoresis (FFE) apparatus and separation medium for separating particles therefore, includes a separation chamber with a dosage pump for conveying medium, electrodes for applying an electric field in the medium and sample injection points for addin...
01/30/2007
7169275Method for separating particles in free flow electrophoresis
A method for separating particles in free-flow electrophoresis FFE includes conveying a separation medium using a dosage pump into a separation chamber; releasing the separation medium via outlets; applying an electrical field in the separation medium; coupling a pa...
01/30/2007
7169563Method for producing and screening mass-coded combinatorial libraries for drug discovery and target validation
Methods for identifying a member of a mass-coded molecular library, which is a ligand for a biomolecule and binds to the biomolecule at the binding site of a known second ligand for the biomolecule are described. The methods includes contacting a mass-coded molecula...
01/30/2007
7166477Muscle sample prepared for prion assay
A method of preparing a sample of muscle tissue and of assaying the prepared sample to determine the presence of prions in the sample is disclosed. The muscle tissue is homogenized and mixed with a complexing agent which forms a complex with a higher specific gravit...
01/23/2007
7160464Methods for removal, purification, and concentration of viruses and methods of therapy based thereupon
The invention is based on the discovery that certain membranes, which include side chains or molecular “brushes” having, for example, tertiary amino functional groups, can be used as highly effective filters to capture viruses/virus particles from liquids withou...
01/09/2007
RE39457Liquid specimen container and attachable testing modules
A biological fluid collection container comprising a cup member, a lid assembly removably mounted to the cup member comprising a housing with a downwardly extending cylindrical skirt, a luer lock with a throughgoing bore extending from one side of the lid housing. A...
01/02/2007
7153701Method for quantitatively detecting antigen
A method for quantitatively detecting an antigen which comprises (1) a first step of providing an Fab′ antibody having a uniform isoelectric point, said antibody forming an immune complex with an antigen in an analytical sample and being modified by adding an amin...
12/26/2006
7151000Method of concentrating proteins from serum
A sample is prepared from blood in a manner which makes it possible to further analyze proteins in the sample, e.g. to detect prions in the sample. Blood is extracted, allowed to clot and subjected to separation processing (e.g. centrifugation) to obtain serum. The ...
12/19/2006
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