Immunoassay. Medical search

A technique using antibodies for identifying or quantifying a substance. Usually the substance being studied serves as antigen both in antibody production and in measurement of antibody by the test substance.

Immunologic techniques based on the use of: (1) enzyme-antibody conjugates; (2) enzyme-antigen conjugates; (3) antienzyme antibody followed by its homologous enzyme; or (4) enzyme-antienzyme complexes. These are used histologically for visualizing or labeling tissue specimens.

Fluoroimmunoassay where detection of the hapten-antibody reaction is based on measurement of the increased polarization of fluorescence-labeled hapten when it is combined with antibody. The assay is very useful for the measurement of small haptenic antigens such as drugs at low concentrations.

An immunoenzyme test for the presence of drugs and other substances in urine and blood. The test uses enzyme linked antibodies that react only with the particular drug for which the sample is being tested.

Commercially prepared reagent sets, with accessory devices, containing all of the major components and literature necessary to perform one or more designated diagnostic tests or procedures. They may be for laboratory or personal use.

Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)

An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed.

The use of fluorescence spectrometry to obtain quantitative results for the FLUORESCENT ANTIBODY TECHNIQUE. One advantage over the other methods (e.g., radioimmunoassay) is its extreme sensitivity, with a detection limit on the order of tenths of microgram/liter.

Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indirectly to measure the binding of the unlabeled substance to a specific antibody or other receptor system. Non-immunogenic substances (e.g., haptens) can be measured if coupled to larger carrier proteins (e.g., bovine gamma-globulin or human serum albumin) capable of inducing antibody formation.

Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen.

Positive test results in subjects who do not possess the attribute for which the test is conducted. The labeling of healthy persons as diseased when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed)

Studies determining the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. For drugs and devices, CLINICAL TRIALS AS TOPIC; DRUG EVALUATION; and DRUG EVALUATION, PRECLINICAL are available.

Method of analyzing chemicals using automation.

Techniques used for determining the values of photometric parameters of light resulting from LUMINESCENCE.

Detection of drugs that have been abused, overused, or misused, including legal and illegal drugs. Urine screening is the usual method of detection.

The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B.

Chemical analysis based on the phenomenon whereby light, passing through a medium with dispersed particles of a different refractive index from that of the medium, is attenuated in intensity by scattering. In turbidimetry, the intensity of light transmitted through the medium, the unscattered light, is measured. In nephelometry, the intensity of the scattered light is measured, usually, but not necessarily, at right angles to the incident light beam.

Europium. An element of the rare earth family of metals. It has the atomic symbol Eu, atomic number 63, and atomic weight 152. Europium is used in the form of its salts as coatings for cathode ray tubes and in the form of its organic derivatives as shift reagents in NMR spectroscopy.

Antibodies produced by a single clone of cells.

The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.

The property of antibodies which enables them to react with some ANTIGENIC DETERMINANTS and not with others. Specificity is dependent on chemical composition, physical forces, and molecular structure at the binding site.

Immunoglobulins produced in response to VIRAL ANTIGENS.

A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds.

A class of immunoglobulin bearing mu chains (IMMUNOGLOBULIN MU-CHAINS). IgM can fix COMPLEMENT. The name comes from its high molecular weight and originally being called a macroglobulin.

Negative test results in subjects who possess the attribute for which the test is conducted. The labeling of diseased persons as healthy when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed)

Antibodies that are chemically bound to a substrate material which renders their location fixed.

Passive agglutination tests in which antigen is adsorbed onto latex particles which then clump in the presence of antibody specific for the adsorbed antigen. (From Stedman, 26th ed)

A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)

A system for verifying and maintaining a desired level of quality in a product or process by careful planning, use of proper equipment, continued inspection, and corrective action as required. (Random House Unabridged Dictionary, 2d ed)

A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods, techniques, and procedures used in diagnosis and therapy.

Diagnostic procedures involving immunoglobulin reactions.

Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.

Determination, by measurement or comparison with a standard, of the correct value of each scale reading on a meter or other measuring instrument; or determination of the settings of a control device that correspond to particular values of voltage, current, frequency or other output.

Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant & Hackh's Chemical Dictionary, 5th ed, p301, p499)

Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy.

Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).

Immunoglobulins produced in a response to BACTERIAL ANTIGENS.

Techniques used to carry out clinical investigative procedures in the diagnosis and therapy of disease.

Small uniformly-sized spherical particles, of micrometer dimensions, frequently labeled with radioisotopes or various reagents acting as tags or markers.

The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.

Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, environmental exposure and its effects, disease diagnosis, metabolic processes, substance abuse, pregnancy, cell line development, epidemiologic studies, etc.

The development and use of techniques and equipment to study or perform chemical reactions, with small quantities of materials, frequently less than a milligram or a milliliter.

Substances elaborated by viruses that have antigenic activity.

Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed.

An anticonvulsant that is used to treat a wide variety of seizures. It is also an anti-arrhythmic and a muscle relaxant. The mechanism of therapeutic action is not clear, although several cellular actions have been described including effects on ion channels, active transport, and general membrane stabilization. The mechanism of its muscle relaxant effect appears to involve a reduction in the sensitivity of muscle spindles to stretch. Phenytoin has been proposed for several other therapeutic uses, but its use has been limited by its many adverse effects and interactions with other drugs.

Concentration or quantity that is derived from the smallest measure that can be detected with reasonable certainty for a given analytical procedure.

Substances elaborated by bacteria that have antigenic activity.

Antibodies elicited in a different species from which the antigen originated. These antibodies are directed against a wide variety of interspecies-specific antigens, the best known of which are Forssman, Hanganutziu-Deicher (H-D), and Paul-Bunnell (P-B). Incidence of antibodies to these antigens--i.e., the phenomenon of heterophile antibody response--is useful in the serodiagnosis, pathogenesis, and prognosis of infection and latent infectious states as well as in cancer classification.

Substances of fungal origin that have antigenic activity.

Measurement of the polarization of fluorescent light from solutions or microscopic specimens. It is used to provide information concerning molecular size, shape, and conformation, molecular anisotropy, electronic energy transfer, molecular interaction, including dye and coenzyme binding, and the antigen-antibody reaction.

The first alpha-globulins to appear in mammalian sera during FETAL DEVELOPMENT and the dominant serum proteins in early embryonic life.

Form of radioimmunoassay in which excess specific labeled antibody is added directly to the test antigen being measured.

Sensitive assay using radiolabeled ANTIGENS to detect specific ANTIBODIES in SERUM. The antigens are allowed to react with the serum and then precipitated using a special reagent such as PROTEIN A sepharose beads. The bound radiolabeled immunoprecipitate is then commonly analyzed by gel electrophoresis.

In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.

Type species of CHLAMYDIA causing a variety of ocular and urogenital diseases.

Serum that contains antibodies. It is obtained from an animal that has been immunized either by ANTIGEN injection or infection with microorganisms containing the antigen.

The type (and only) species of RUBIVIRUS causing acute infection in humans, primarily children and young adults. Humans are the only natural host. A live, attenuated vaccine is available for prophylaxis.

A milky, product excreted from the latex canals of a variety of plant species that contain cauotchouc. Latex is composed of 25-35% caoutchouc, 60-75% water, 2% protein, 2% resin, 1.5% sugar & 1% ash. RUBBER is made by the removal of water from latex.(From Concise Encyclopedia Biochemistry and Molecular Biology, 3rd ed). Hevein proteins are responsible for LATEX HYPERSENSITIVITY. Latexes are used as inert vehicles to carry antibodies or antigens in LATEX FIXATION TESTS.

Techniques used to demonstrate or measure an immune response, and to identify or measure antigens using antibodies.

Antibodies reactive with HIV ANTIGENS.

A 60-kDa extracellular protein of Streptomyces avidinii with four high-affinity biotin binding sites. Unlike AVIDIN, streptavidin has a near neutral isoelectric point and is free of carbohydrate side chains.

A genus of REOVIRIDAE, causing acute gastroenteritis in BIRDS and MAMMALS, including humans. Transmission is horizontal and by environmental contamination. Seven species (Rotaviruses A thru G) are recognized.

Infections with bacteria of the genus CHLAMYDIA.

The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.

The application of medical knowledge to questions of law.

EPIDEMIOLOGIC STUDIES based on the detection through serological testing of characteristic change in the serum level of specific ANTIBODIES. Latent subclinical infections and carrier states can thus be detected in addition to clinically overt cases.

The clear, viscous fluid secreted by the SALIVARY GLANDS and mucous glands of the mouth. It contains MUCINS, water, organic salts, and ptylin.

Polysaccharides consisting of mannose units.

Sites on an antigen that interact with specific antibodies.

In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.

An enzyme isolated from horseradish which is able to act as an antigen. It is frequently used as a histochemical tracer for light and electron microscopy. Its antigenicity has permitted its use as a combined antigen and marker in experimental immunology.

Procedures for collecting, preserving, and transporting of specimens sufficiently stable to provide accurate and precise results suitable for clinical interpretation.

The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.

A form of fluorescent antibody technique utilizing a fluorochrome conjugated to an antibody, which is added directly to a tissue or cell suspension for the detection of a specific antigen. (Bennington, Saunders Dictionary & Encyclopedia of Laboratory Medicine and Technology, 1984)

The clear portion of BLOOD that is left after BLOOD COAGULATION to remove BLOOD CELLS and clotting proteins.

A method of measuring the effects of a biologically active substance using an intermediate in vivo or in vitro tissue or cell model under controlled conditions. It includes virulence studies in animal fetuses in utero, mouse convulsion bioassay of insulin, quantitation of tumor-initiator systems in mouse skin, calculation of potentiating effects of a hormonal factor in an isolated strip of contracting stomach muscle, etc.

Elements of limited time intervals, contributing to particular results or situations.

INFLAMMATION of any segment of the GASTROINTESTINAL TRACT from ESOPHAGUS to RECTUM. Causes of gastroenteritis are many including genetic, infection, HYPERSENSITIVITY, drug effects, and CANCER.

The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.

Incorrect diagnoses after clinical examination or technical diagnostic procedures.

The beta subunit of human CHORIONIC GONADOTROPIN. Its structure is similar to the beta subunit of LUTEINIZING HORMONE, except for the additional 30 amino acids at the carboxy end with the associated carbohydrate residues. HCG-beta is used as a diagnostic marker for early detection of pregnancy, spontaneous abortion (ABORTION, SPONTANEOUS); ECTOPIC PREGNANCY; HYDATIDIFORM MOLE; CHORIOCARCINOMA; or DOWN SYNDROME.

A specific protein in egg albumin that interacts with BIOTIN to render it unavailable to mammals, thereby producing biotin deficiency.

The taking of a blood sample to determine its character as a whole, to identify levels of its component cells, chemicals, gases, or other constituents, to perform pathological examination, etc.

Any technique by which an unknown color is evaluated in terms of standard colors. The technique may be visual, photoelectric, or indirect by means of spectrophotometry. It is used in chemistry and physics. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

A common inhabitant of the colon flora in human infants and sometimes in adults. It produces a toxin that causes pseudomembranous enterocolitis (ENTEROCOLITIS, PSEUDOMEMBRANOUS) in patients receiving antibiotic therapy.

Emission of LIGHT when ELECTRONS return to the electronic ground state from an excited state and lose the energy as PHOTONS. It is sometimes called cool light in contrast to INCANDESCENCE. LUMINESCENT MEASUREMENTS take advantage of this type of light emitted from LUMINESCENT AGENTS.

A measure of the binding strength between antibody and a simple hapten or antigen determinant. It depends on the closeness of stereochemical fit between antibody combining sites and antigen determinants, on the size of the area of contact between them, and on the distribution of charged and hydrophobic groups. It includes the concept of "avidity," which refers to the strength of the antigen-antibody bond after formation of reversible complexes.

A water-soluble, enzyme co-factor present in minute amounts in every living cell. It occurs mainly bound to proteins or polypeptides and is abundant in liver, kidney, pancreas, yeast, and milk.

Elements of the lanthanoid series including atomic number 57 (LANTHANUM) through atomic number 71 (LUTETIUM).

The complex formed by the binding of antigen and antibody molecules. The deposition of large antigen-antibody complexes leading to tissue damage causes IMMUNE COMPLEX DISEASES.

An acute infectious disease caused by the RUBELLA VIRUS. The virus enters the respiratory tract via airborne droplet and spreads to the LYMPHATIC SYSTEM.

Methods utilizing the principles of MICROFLUIDICS for sample handling, reagent mixing, and separation and detection of specific components in fluids.

The study of the structure, growth, function, genetics, and reproduction of viruses, and VIRUS DISEASES.

Infection with any of the rotaviruses. Specific infections include human infantile diarrhea, neonatal calf diarrhea, and epidemic diarrhea of infant mice.

Antibodies that react with self-antigens (AUTOANTIGENS) of the organism that produced them.

A glycoprotein hormone secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Thyrotropin stimulates THYROID GLAND by increasing the iodide transport, synthesis and release of thyroid hormones (THYROXINE and TRIIODOTHYRONINE). Thyrotropin consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the pituitary glycoprotein hormones (TSH; LUTEINIZING HORMONE and FSH), but the beta subunit is unique and confers its biological specificity.

Any of a variety of procedures which use biomolecular probes to measure the presence or concentration of biological molecules, biological structures, microorganisms, etc., by translating a biochemical interaction at the probe surface into a quantifiable physical signal.

A gonadotropic glycoprotein hormone produced primarily by the PLACENTA. Similar to the pituitary LUTEINIZING HORMONE in structure and function, chorionic gonadotropin is involved in maintaining the CORPUS LUTEUM during pregnancy. CG consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is virtually identical to the alpha subunits of the three pituitary glycoprotein hormones (TSH, LH, and FSH), but the beta subunit is unique and confers its biological specificity (CHORIONIC GONADOTROPIN, BETA SUBUNIT, HUMAN).

An analytical method for detecting and measuring FLUORESCENCE in compounds or targets such as cells, proteins, or nucleotides, or targets previously labeled with FLUORESCENCE AGENTS.

Proteins prepared by recombinant DNA technology.

Antigens produced by various strains of HEPATITIS A VIRUS such as the human hepatitis A virus (HEPATITIS A VIRUS, HUMAN).

Laboratory and other services provided to patients at the bedside. These include diagnostic and laboratory testing using automated information entry.

Immunologic techniques involved in diagnosis.

The interaction of two or more substrates or ligands with the same binding site. The displacement of one by the other is used in quantitative and selective affinity measurements.

Tests that are dependent on the clumping of cells, microorganisms, or particles when mixed with specific antiserum. (From Stedman, 26th ed)

Alkaloids found in OPIUM from PAPAVER that induce analgesic and narcotic effects by action upon OPIOID RECEPTORS.

Represents 15-20% of the human serum immunoglobulins, mostly as the 4-chain polymer in humans or dimer in other mammals. Secretory IgA (IMMUNOGLOBULIN A, SECRETORY) is the main immunoglobulin in secretions.

Antibodies found in adult RHEUMATOID ARTHRITIS patients that are directed against GAMMA-CHAIN IMMUNOGLOBULINS.

A class of chemicals derived from barbituric acid or thiobarbituric acid. Many of these are GABA MODULATORS used as HYPNOTICS AND SEDATIVES, as ANESTHETICS, or as ANTICONVULSANTS.

Immunologic method used for detecting or quantifying immunoreactive substances. The substance is identified by first immobilizing it by blotting onto a membrane and then tagging it with labeled antibodies.

Chromatographic techniques in which the mobile phase is a liquid.

C(23)-steroids with methyl groups at C-10 and C-13 and a five-membered lactone at C-17. They are aglycone constituents of CARDIAC GLYCOSIDES and must have at least one double bond in the molecule. The class includes cardadienolides and cardatrienolides. Members include DIGITOXIN and DIGOXIN and their derivatives and the STROPHANTHINS.

Identification of proteins or peptides that have been electrophoretically separated by blot transferring from the electrophoresis gel to strips of nitrocellulose paper, followed by labeling with antibody probes.

Immunoglobulins raised by any form of viral hepatitis; some of these antibodies are used to diagnose the specific kind of hepatitis.

A methyl xanthine derivative from tea with diuretic, smooth muscle relaxant, bronchial dilation, cardiac and central nervous system stimulant activities. Theophylline inhibits the 3',5'-CYCLIC NUCLEOTIDE PHOSPHODIESTERASE that degrades CYCLIC AMP thus potentiates the actions of agents that act through ADENYLYL CYCLASES and cyclic AMP.

Narrow pieces of material impregnated or covered with a substance used to produce a chemical reaction. The strips are used in detecting, measuring, producing, etc., other substances. (From Dorland, 28th ed)

3 beta,12 beta,14-Trihydroxy-5 beta-card-20(22)-enolide. A cardenolide which is the aglycon of digoxin. Can be obtained by hydrolysis of digoxin or from Digitalis orientalis L. and Digitalis lanata Ehrh.

A series of steps taken in order to conduct research.

Agents that induce NARCOSIS. Narcotics include agents that cause somnolence or induced sleep (STUPOR); natural or synthetic derivatives of OPIUM or MORPHINE or any substance that has such effects. They are potent inducers of ANALGESIA and OPIOID-RELATED DISORDERS.

Drugs obtained and often manufactured illegally for the subjective effects they are said to produce. They are often distributed in urban areas, but are also available in suburban and rural areas, and tend to be grossly impure and may cause unexpected toxicity.

An intermediate in the metabolism of DIAZEPAM to OXAZEPAM. It may have actions similar to those of diazepam.

Serologic tests based on inactivation of complement by the antigen-antibody complex (stage 1). Binding of free complement can be visualized by addition of a second antigen-antibody system such as red cells and appropriate red cell antibody (hemolysin) requiring complement for its completion (stage 2). Failure of the red cells to lyse indicates that a specific antigen-antibody reaction has taken place in stage 1. If red cells lyse, free complement is present indicating no antigen-antibody reaction occurred in stage 1.

Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.

A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection.

Analogs or derivatives of AMPHETAMINE. Many are sympathomimetics and central nervous system stimulators causing excitation, vasopressin, bronchodilation, and to varying degrees, anorexia, analepsis, nasal decongestion, and some smooth muscle relaxation.

Sensitive tests to measure certain antigens, antibodies, or viruses, using their ability to agglutinate certain erythrocytes. (From Stedman, 26th ed)

Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.

Polymerized forms of styrene used as a biocompatible material, especially in dentistry. They are thermoplastic and are used as insulators, for injection molding and casting, as sheets, plates, rods, rigid forms and beads.

An acute inflammation of the INTESTINAL MUCOSA that is characterized by the presence of pseudomembranes or plaques in the SMALL INTESTINE (pseudomembranous enteritis) and the LARGE INTESTINE (pseudomembranous colitis). It is commonly associated with antibiotic therapy and CLOSTRIDIUM DIFFICILE colonization.

The study of MAGNETIC PHENOMENA.

An opioid analgesic with actions and uses similar to those of MORPHINE, apart from an absence of cough suppressant activity. It is used in the treatment of moderate to severe pain, including pain in obstetrics. It may also be used as an adjunct to anesthesia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1092)

A glycoprotein that is secreted into the luminal surface of the epithelia in the gastrointestinal tract. It is found in the feces and pancreaticobiliary secretions and is used to monitor the response to colon cancer treatment.

The processes triggered by interactions of ANTIBODIES with their ANTIGENS.

An infant during the first month after birth.

Ligand-binding assays that measure protein-protein, protein-small molecule, or protein-nucleic acid interactions using a very large set of capturing molecules, i.e., those attached separately on a solid support, to measure the presence or interaction of target molecules in the sample.

A family of galactoside hydrolases that hydrolyze compounds with an O-galactosyl linkage. EC 3.2.1.-.

Those hepatitis B antigens found on the surface of the Dane particle and on the 20 nm spherical and tubular particles. Several subspecificities of the surface antigen are known. These were formerly called the Australia antigen.

An examination of chemicals in the blood.

An inactive metabolite of PROGESTERONE by reduction at C5, C3, and C20 position. Pregnanediol has two hydroxyl groups, at 3-alpha and 20-alpha. It is detectable in URINE after OVULATION and is found in great quantities in the pregnancy urine.

Controlled operation of an apparatus, process, or system by mechanical or electronic devices that take the place of human organs of observation, effort, and decision. (From Webster's Collegiate Dictionary, 1993)

Immunoglobulins produced in a response to PROTOZOAN ANTIGENS.

An enzyme that catalyzes the conversion of an orthophosphoric monoester and water to an alcohol and orthophosphate. EC 3.1.3.1.

The study of fluid channels and chambers of tiny dimensions of tens to hundreds of micrometers and volumes of nanoliters or picoliters. This is of interest in biological MICROCIRCULATION and used in MICROCHEMISTRY and INVESTIGATIVE TECHNIQUES.

The causative agent of venereal and non-venereal syphilis as well as yaws.

A complex of closely related aminoglycosides obtained from MICROMONOSPORA purpurea and related species. They are broad-spectrum antibiotics, but may cause ear and kidney damage. They act to inhibit PROTEIN BIOSYNTHESIS.

Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of an attribute to the disease is examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group.

Blood proteins that bind to THYROID HORMONES such as THYROXINE and transport them throughout the circulatory system.

Silicone polymers which consist of silicon atoms substituted with methyl groups and linked by oxygen atoms. They comprise a series of biocompatible materials used as liquids, gels or solids; as film for artificial membranes, gels for implants, and liquids for drug vehicles; and as antifoaming agents.

A major metabolite of PROCAINAMIDE. Its anti-arrhythmic action may cause cardiac toxicity in kidney failure.

Examination of urine by chemical, physical, or microscopic means. Routine urinalysis usually includes performing chemical screening tests, determining specific gravity, observing any unusual color or odor, screening for bacteriuria, and examining the sediment microscopically.

Partial proteins formed by partial hydrolysis of complete proteins or generated through PROTEIN ENGINEERING techniques.

A genus of small, circular RNA viruses in the family ASTROVIRIDAE. They cause GASTROENTERITIS and are found in the stools of several vertebrates including humans. Transmission is by the fecal-oral route and there are at least eight human serotypes. The type species is Human astrovirus.

The top portion of the pharynx situated posterior to the nose and superior to the SOFT PALATE. The nasopharynx is the posterior extension of the nasal cavities and has a respiratory function.

The process of observing, recording, or detecting the effects of a chemical substance administered to an individual therapeutically or diagnostically.

An infection of the SMALL INTESTINE caused by the flagellated protozoan GIARDIA LAMBLIA. It is spread via contaminated food and water and by direct person-to-person contact.

The specialty of ANALYTIC CHEMISTRY applied to assays of physiologically important substances found in blood, urine, tissues, and other biological fluids for the purpose of aiding the physician in making a diagnosis or following therapy.

An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.

Technique involving the diffusion of antigen or antibody through a semisolid medium, usually agar or agarose gel, with the result being a precipitin reaction.

Antigens associated with specific proteins of the human adult T-cell immunodeficiency virus (HIV); also called HTLV-III-associated and lymphadenopathy-associated virus (LAV) antigens.

A group of enzymes that catalyzes the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-galactosides. Deficiency of beta-Galactosidase A1 may cause GANGLIOSIDOSIS, GM1.

Inflammation of the UTERINE CERVIX.

Substances that are toxic to the intestinal tract causing vomiting, diarrhea, etc.; most common enterotoxins are produced by bacteria.

Immunological comparison of the proteins of chicken and rat liver ribosomes. (1/4669)

A comparison of the proteins of chicken and rat liver ribosomes using immunochemical techniques was undertaken. The procedures included quantitative precipitation, passive hemagglutination, and immunodiffusion on Ouchterlony plates. The results indicate that antisera specific for chicken or rat liver ribosomes recognize only about 20% of common determinants. While there are important reservations, the results suggest extensive differences in the proteins of rat and chicken liver ribosomes. Despite those differences, rat and chicken liver ribosomal proteins maintain some homologous sequences present in bacterial ribosomal proteins. An enriched antibody preparation against chicken 80 S ribosomes inhibited the poly(U)-directed synthesis of polyphenylalanine and the elongation factor G (EF-G)-catalyzed binding of [3H]GDP to Escherichia coli ribosomes. Thus, chicken liver ribosomes, like ribosomes from rat liver and yeast, must have proteins homologous with those of E. coli ribosomes. (+info)

Performance and specificity of monoclonal immunoassays for cyclosporine monitoring: how specific is specific? (2/4669)

BACKGROUND: Immunoassays designed for the selective measurement of cyclosporin A (CsA) inadvertently show cross-reactivity for CsA metabolites. The extent and clinical significance of the resulting overestimation is controversial. A comprehensive assessment of old and new methods in clinical specimens is needed. METHODS: In a comprehensive evaluation, CsA was analyzed in 145 samples with the new CEDIA assay and compared with the Emit assay with the old and new pretreatments, the TDx monoclonal and polyclonal assays, the AxSYM, and HPLC. All samples were from patients with liver and/or kidney transplants. RESULTS: The CEDIA offered the easiest handling, followed by the AxSYM, which showed the longest calibration stability. The TDx monoclonal assay provided the lowest detection limit and the lowest CVs. The mean differences compared with HPLC were as follows: Emit, 9-12%; CEDIA, 18%; AxSYM, 29%; and TDx monoclonal, 57%. The CycloTrac RIA paralleled the Emit results. In contrast to the mean differences, substantial (>200%) and variable overestimations of the CsA concentration were observed in individual patient samples. Metabolic ratios, estimates of the overall concentrations of several cross-reacting metabolites (nonspecific TDx polyclonal/specific reference method), correlated with the apparent biases of the various monoclonal assays. Metabolic ratios varied up to 10-fold, which translated into biases for individual samples between -7% and +174%. The higher the cross-reactivity of an assay was, the higher was the range of biases observed. The interindividual differences markedly exceeded other factors of influence (organ transplanted, hepatic function). CONCLUSION: Because assay bias cannot be predicted in individual samples, substantially erratic CsA dosing can result. The specificity of CsA assays for parent CsA remains a major concern. (+info)

Automated homogeneous immunoassay for gentamicin on the dimension clinical chemistry system. (3/4669)

BACKGROUND: Monitoring of the concentration of gentamicin in serum and plasma during therapy is widely recommended and practiced in hospitals. Our aim was to develop a homogeneous immunoassay based on particle-enhanced turbidimetric inhibition immunoassay technology to quantify gentamicin on the Dimension clinical chemistry system. METHODS: Assay performance was assessed on each of the Dimension models in a 15-instrument interlaboratory comparison study. A split-sample comparison (n = 1171) was also performed between the gentamicin methods on the Dimension system and the Abbott TDx analyzer, using multiple reagent and calibrator lots on multiple instruments. RESULTS: The Dimension method was linear to 25.1 micromol/L (12.0 microg/mL) with a detection limit of 0.63 micromol/L (0.3 microg/mL). Calibration was stable for 30 days. The within-run imprecision (CV) was <1.3%, and total imprecision ranged from 1.8% to 3.2% between 4.2 micromol/L (2.0 microg/mL) and 16.7 micromol/L (8.0 microg/mL) gentamicin. Linear regression analysis of the results on the Dimension method (DM) vs the Abbott TDx yielded the following equation: DM = 0.98TDx - 0.42; r = 0.987. Minimal interference was observed from structurally related compounds such as sagamicin, netilmicin, and sisomicin. CONCLUSION: The monoclonal antibody used in this method has similar reactivities toward the individual gentamicin subspecies C1, C1a, and C2, thus providing analytical recovery not significantly dependent on relative subspecies concentrations. (+info)

Serum IGF-binding protein-6 and prostate specific antigen in breast cancer. (4/4669)

OBJECTIVE: Recent studies have demonstrated the presence of the IGF-binding proteins (IGFBPs) and prostate specific antigen (PSA), an IGFBP protease. in human breast tissue. We sought to investigate the differences in serum IGFs, IGFBP-1, -3 and -6, and PSA between patients with surgically proven breast cancer and patients with benign breast disease. DESIGN AND METHODS: Concentrations of IGFs, IGFBP-1, -3 and -6, and PSA were determined in the sera from 57 patients with breast cancer (CA), and 46 women with benign breast disease (BBD) using immunoassays for IGFs and IGFBPs and an ultrasensitive ELISA for PSA. RESULTS: The mean (+/- S.E.M.) serum IGFBP-6 level in the CA group, 127 (16) ng/ml, was statistically significantly lower than in the BBD group, 157 (10) ng/ml (P = 0.016). Patients with CA had an elevated geometric mean serum PSA level of 0.018 (range: 0.0015-0.107) ng/ml, compared with 0.007 (range: 0.0015-0.019) ng/ml in women with BBD (P = 0.025). Mean serum IGFBP-1 concentrations were significantly lower in the CA group, 16 (2) ng/ml, versus 37 (4) ng/ml in the BBD group (P = 0.001). Mean serum IGFBP-3 concentrations were also lower in the CA group versus the BBD group, at 1981 (65) ng/ml, versus 2603 (140) ng/ml (P = 0.002) respectively. In the CA group, statistically significant correlations between PSA and IGFBP-6 (r = 0.413; P = 0.001), and between PSA and IGFBP-1 (r = -0.329; P = 0.021) were seen. Differences in IGF-I and -II between the two groups were not statistically significant. CONCLUSION: Lower serum concentrations of IGFBP-6, -3 and -1, but higher PSA concentrations were seen in the breast cancer group, and collectively these would suggest that there is an increase in bioavailable IGF-I in breast cancer. (+info)

Differential immunodiagnosis between cystic hydatid disease and other cross-reactive pathologies. (5/4669)

We assessed an Echinococcus granulosus hydatid fluid antigen-ELISA (EgHF-ELISA) as a serologic prescreening test for E. granulosus infections, supplemented by more specific confirmatory tests, including arc-5 immunoprecipitation and antigen B subunit 8-kD immunoblotting. The diagnostic sensitivity of the EgHF-ELISA was 91%. With regard to the test specificity of the EgHF-ELISA (overall = 82%), we observed relatively frequent cross-reactions in tumor patients (6%) and in patients with other parasitic diseases. Cestode-related cross-reactivity can be resolved by the complementary use of E. multilocularis-specific antigens or Taenia solium cysticercosis-specific immunoblotting. Immunoblotting based upon the detection of antibody reactivity to the 8-kD antigen of EgHF, or if appropriately detectable, to the 29-kD and 34-kD bands exhibited a 91% diagnostic sensitivity and an overall specificity of 97% or 94%, respectively. Thus, immunoblotting provided a 99% discrimination between seropositive pre-operative cystic hydatid disease cases and cross-reactive non-cestode parasitic infections or malignancies. (+info)

An immunoluminometric assay for N-terminal pro-brain natriuretic peptide: development of a test for left ventricular dysfunction. (6/4669)

Measurement of plasma levels of brain natriuretic peptide (BNP) has been used to assess left ventricular dysfunction and prognosis. Levels of the N-terminus of the precursor of BNP (NT-proBNP) have been reported to be elevated to a greater extent than BNP in left ventricular dysfunction. We have devised a non-radioactive sensitive and specific assay for NT-proBNP based on a competitive ligand binding principle. The chemiluminescent label 4-(2-succinimidyloxycarbonylethyl)phenyl-10-methylacridinium 9-carboxylate fluorosulphonate was used to label peptides representing domains in the middle and C-terminal sections of NT-proBNP. Assay of the C-terminal section of NT-proBNP (amino acids 65-76) in patients with proven left ventricular dysfunction [left ventricular wall motion index median 0.9 (range 0.3-1.4)] revealed elevated values [median 639 (386-911) fmol/ml] compared with normal controls [left ventricular wall motion index of 2 in all, NT-proBNP median 159 (120-245) fmol/ml, P<0.001]. Measurement of the middle section of NT-proBNP (amino acids 37-49) was not a discriminating test. It is thus possible to derivatize small peptides with a methyl acridinium label and preserve immunodetection with specific antibodies. Such methodology may allow non-radioactive immunoluminometric assays to be devised. (+info)

Endometrial evaluation is not predictive for in vitro fertilization treatment. (7/4669)

PURPOSE: The main purpose of this study was to evaluate ovarian function by clomiphene citrate (CC) challenge test in a group of tubal infertile women and to study endometrial morphological maturation in the early luteal phase of CC-stimulated cycles as compared to in vitro fertilization (IVF) treatment outcome. METHODS AND RESULTS: Four women presented with strongly retarded, proliferative endometrium in the luteal phase. Of these, three presented with impaired ovarian function, high basal follicle-stimulating hormone, and high follicle-stimulating hormone levels after clomiphene stimulation on cycle day 10. In the remaining 30 women, showing an in-phase endometrium after CC stimulation, a comparison of six morphological characteristics did not reveal any significant differences between the 14 women who did become pregnant and the 16 who did not. No significant differences in endometrial thickness were observed between the groups. Significant differences were found when comparing estradiol and progesterone area under the curve during the luteal phase (P < 0.001 and P < 0.01, respectively) between those who did and those who did not become pregnant. CONCLUSIONS: Luteal endometrium morphology was not a sharp instrument to detect differences between women who did and women who did not become pregnant following IVF treatment, while ovarian function, as measured by hormonal markers, seemed to be a more reliable prognostic factor for IVF treatment outcome. (+info)

Malignant transformation of human prostatic epithelium is associated with the loss of androgen receptor immunoreactivity in the surrounding stroma. (8/4669)

The cellular pathways involved in the pathogenesis of hormone resistance remain unclear. Studies evaluating the role of changes in human androgen receptor (hAR) expression in the progression of prostatic tumors have been inconclusive. Androgenic influence over prostatic growth is mediated via the regulation of interactions between stromal and epithelial cells. We hypothesized that neoplastic transformation of the prostate would be associated with alterations in hAR expression in the adjacent stroma. Using immunohistochemical techniques, we determined hAR positivity in the epithelium and adjacent stroma of sections from 17 benign and 39 malignant prostatic glands. We found that whereas the expression of the receptor decreased in both cellular compartments as the tissues dedifferentiated, the depletion was more pronounced in the stromal nuclei (P<0.0001). However, in sections from both untreated and hormone-resistant prostate cancer tissues, although heterogeneity of hAR expression in malignant epithelia was increased, there appeared to be a unique field effect around the cancerous prostate glands that resulted in a decreased expression of the receptor in the adjacent benign glands and its total loss in the surrounding stroma. The loss of hAR in the stroma adjacent to malignant prostatic epithelium may play an important role in prostate cancer progression. Furthermore, the similarity of the lack of stromal hAR expression in newly diagnosed and hormone-resistant prostate cancer (P = 0.85) may be an indication that the mechanisms responsible for the acquisition of hormone independence are established early in the malignant transformation process. (+info)

SERS-based immunoassay[edit]. SERS-based immunoassay is a novel technique for detection of low abundance biomarkers. Using ... Early detection of pancreatic cancer biomarkers was accomplished using SERS-based immunoassay approach.[43] This technology has ... "Multiplex detection of pancreatic cancer biomarkers using a SERS-based immunoassay". IOP Nanotechnology. Bibcode:2017Nanot.. ...

https://en.wikipedia.org/wiki/Surface_enhanced_Raman_spectroscopy

Immunoassay. *Boronate affinity chromatography. In the United States, HbA1c testing laboratories are certified by the National ...

https://en.wikipedia.org/wiki/Hemoglobin_A1C

The unit count will often still remain in use.[clarify] Such a change has happened with the immunoassay standards for prolactin ... Ekins R (1991). "Immunoassay standardization". Scand J Clin Lab Invest Suppl. 205: 33-46. doi:10.3109/00365519109104600. PMID ... Wicher JT (1991). "Calibration is the key to immunoassay but the ideal calibrator is unattainable". Scand J Clin Lab Invest ...

https://en.wikipedia.org/wiki/International_unit

That Tjien Ngo (1988). Nonisotopic immunoassay. Plenum Press. p. 71. F. Yamagishi; T. Stanford; C. van Ast (2001). "Biosensors ...

https://en.wikipedia.org/wiki/Trinder_glucose_activity_test

An important practical relevance of the phenomenon is as a type of interference that plagues certain immunoassays and ... Tate, Jill; Ward, Greg (2004-05-01). "Interferences in Immunoassay". The Clinical Biochemist Reviews. 25 (2): 105-120. ISSN ... Miller, James (April 2004). "Interference in immunoassays: avoiding erroneous results" (PDF). CLI Online. CLI. Retrieved 3 ... Blocking antibody Schiettecatte, Johan; Anckaert, Ellen; Smitz, Johan (2012-03-23). "Interferences in Immunoassays". Advances ...

https://en.wikipedia.org/wiki/Hook_effect

In the heterogeneous immunoassay the separation step will wash away the free substrate unable to bind due to HAMA blocking; ... Darwish, IA (2006). "Immunoassay Methods and their Applications in Pharmaceutical Analysis: Basic Methodology and Recent ... Tate, J; Ward, G (2004). "Interferences in immunoassay". Clin Biochem Rev. 25 (2): 105-20. PMC 1904417. PMID 18458713.. ... HAMA interferences can give false positive or negative immunoassay results. HAMA bridging interference produces artificially ...

https://en.wikipedia.org/wiki/Human_anti-mouse_antibody

Sarah Tiplady (2013). "7.3: Lateral Flow and Consumer Diagnostics". The Immunoassay Handbook. pp. 533-536. Retrieved 2013-10-17 ... "Chapter 7.4: Consumer Diagnostics-Clearblue Pregnancy and Fertility Testing". The Immunoassay Handbook. pp. 537-540. Retrieved ...

https://en.wikipedia.org/wiki/Clearblue

Kricka, Larry J (1993). "Ultrasensitive immunoassay techniques". Clinical Biochemistry. 26 (5): 325-331. doi:10.1016/0009-9120( ...

https://en.wikipedia.org/wiki/CSPD_(molecule)

Furthermore, immunoassays on thiol-ene "synthetic paper" micropillar scaffolds have shown to generate a superior fluorescence ... Guo, W; Vilaplana, L; Hansson, J; Marco, P; van der Wijngaart, W (2020). "Immunoassays on thiol-ene synthetic paper generate a ... Silzel J. W., Cercek B., Dodson C., Tsay T., Obremski R. J. (1998). "Mass-sensing, multianalyte microarray immunoassay with ... Ekins RP (1989). "Multi-analyte immunoassay". J Pharm Biomed Anal. 7 (2): 155-68. doi:10.1016/0731-7085(89)80079-2. PMID ...

https://en.wikipedia.org/wiki/Antibody_microarray

A new avidin-biotin ELISA assay for its measurement". Journal of Immunoassay. 13 (1): 47-60. doi:10.1080/15321819208019824. ... using immunoassays such as nephelometry or particle-enhanced turbidimetry. It is a more expensive test than serum creatinine ( ... "Adult cystatin C reference intervals determined by nephelometric immunoassay". Clinical Biochemistry. 40 (13-14): 1084-7. doi: ...

https://en.wikipedia.org/wiki/Cystatin_C

Mills E, Potts A, Plumb G, Lambert N, Morgan M (1997). "Development of a rapid dipstick immunoassay for the detection of peanut ... In these tests, peanut allergens are measured in foods by immunoassay with human IgE antibodies. In 2003 a monoclonal antibody- ... Keating MU, Jones RT, Worley NJ, Shively CA, Yunginger JW (July 1990). "Immunoassay of peanut allergens in food-processing ... Yeung JM, Collins PG (1996). "Enzyme immunoassay for determination of peanut proteins in food products". Journal of AOAC ...

https://en.wikipedia.org/wiki/Ara_h1

Examples of these methods are the MSIA (mass spectrometric immunoassay), developed by Randall Nelson in 1995, and the SISCAPA ( ... 1995). "Mass Spectrometric Immunoassay". Analytical Chemistry. 67 (7): 1153-1158. doi:10.1021/ac00103a003. ISSN 0003-2700. PMID ... Generally, proteins may be detected by using either antibodies (immunoassays) or mass spectrometry. If a complex biological ... The lower limit of detection with conventional immunoassay technology is the upper femtomolar range (10−13 M). Digital ...

https://en.wikipedia.org/wiki/Proteomics

... and immunoassay test kits. New field analytical methods are fast developing. However, some have used standard laboratory ... Immunoassay and Enzymatic Assays". "Technologies for Cleaning up Contaminated Sites" (PDF). 2015-01-27. http://www.triadcentral ...

https://en.wikipedia.org/wiki/Triad_(environmental_science)

Method: Microparticle Enzyme Immunoassay. Beckman Coulter provides the equipment and reagents used in the 2009-2011 CDC manuals ... Method: Microparticle Enzyme Immunoassay. Lab 18 TSH - Thyroid Stimulating Hormone. 1999-2000. ...

https://en.wikipedia.org/wiki/Thyroid_function_tests

Immunoassay of human aldose reductase". Biochemical Pharmacology. 46 (1): 21-8. doi:10.1016/0006-2952(93)90343-U. PMID 8347133 ...

https://en.wikipedia.org/wiki/AKR1B1

Both heterogeneous immunoassays (antigens interacting with immobilized antibodies) and homogeneous immunoassays (antigens ... have been incorporated onto DMF immunoassay platforms. The incorporation of magnetic bead-based assays onto a DMF immunoassay ... Shamsi MH, Choi K, Ng AH, Wheeler AR (February 2014). "A digital microfluidic electrochemical immunoassay". Lab on a Chip. 14 ( ... The advanced fluid handling capabilities of digital microfluidics (DMF) allows for the adoption of DMF as an immunoassay ...

https://en.wikipedia.org/wiki/Digital_microfluidics

Assay Immunoassay Hoskins, W. M.; Craig, R. (1962-01-01). "Uses of Bioassay in Entomology". Annual Review of Entomology. 7 (1 ...

https://en.wikipedia.org/wiki/Bioassay

September 2017). "Immunoassay for human serum erythroferrone". Blood. 130 (10): 1243-1246. doi:10.1182/blood-2017-04-777987. ... Erythroferrone levels in blood have been shown by immunoassay to be higher after blood loss or erythropoetin administration. ...

https://en.wikipedia.org/wiki/Erythroferrone

... fluorescent immunoassay products (Sofia); and (5) molecular diagnostic products. These products include assays such as QuickVue ... Quidel's core competencies and capabilities include immunoassay development, automated manufacturing, monoclonal antibody ...

https://en.wikipedia.org/wiki/Quidel_Corporation

Shamsi MH, Choi K, Ng AH, Wheeler AR (February 2014). "A digital microfluidic electrochemical immunoassay". Lab on a Chip. 14 ( ... magnetic microparticles in the fluids replaced the typical fluorescence-based detection of droplets in the immunoassay of ...

https://en.wikipedia.org/wiki/Droplet-based_microfluidics

Surround optical-fiber immunoassay (SOFIA). *XENPAK. References[edit]. *^ "Optical Fiber". www.thefoa.org. The Fiber Optic ...

https://en.wikipedia.org/wiki/Fibre_optic

The photoacoustic immunoassay labels and detects target proteins using nanoparticles that can generate strong acoustic signals ... Zhao Y, Cao M, McClelland JF, Lu M (2016). "A photoacoustic immunoassay for biomarker detection". Biosensors and Bioelectronics ...

https://en.wikipedia.org/wiki/Photoacoustic_effect

Fluorescence polarization immunoassay is widely used. This test is slower and has a lower sensitivity than digoxin immunoassay ... and their detection by digoxin immunoassays". Clinical Chemistry. 42 (10): 1654-8. doi:10.1093/clinchem/42.10.1654. PMID ...

https://en.wikipedia.org/wiki/Oleandrin

Another identification mechanism is through immunoassay. Abbott Labs' AxSYM is an immunoassay device utilizing Fluorescence ... Polarization Immunoassay (FPIA) technology that can determine the presence and quantify salicylates. The introduction of a ...

https://en.wikipedia.org/wiki/Salicylate_testing

Use of enzymes in immunoassay techniques. Analyst, 109: 533-547. Gugerli, P. and Gehriger, W. (1980). Enzyme-linked ... Laboratory techniques in biochemistry and molecular biology practice and theory of enzyme immunoassays, volume 15, Elsevier ...

https://en.wikipedia.org/wiki/Potato_virus_Y

The photoacoustic immunoassay labels and detects target proteins using nanoparticles that can generate strong acoustic signals ... "A photoacoustic immunoassay for biomarker detection". Biosensors and Bioelectronics. 85: 261-66. doi:10.1016/j.bios.2016.05.028 ...

https://en.wikipedia.org/wiki/Photoacoustic_spectroscopy

In the 1970s, the discovery of monoclonal antibodies led to the development of the relatively simple and cheap immunoassays, ... Yalow RS, Berson SA (July 1960). "Immunoassay of endogenous plasma insulin in man". Journal of Clinical Investigation. 39 (7): ...

https://en.wikipedia.org/wiki/Pregnancy_test

2007 Dec 12;605(1):70-9. Nelson R, Krone J, Bieber A. Mass spectrometric immunoassay. Anal Chem. 1995 Ackermann BL. Hybrid ... Serum thyroglobulin: a model of immunoassay imperfection. 2006;(8):12-4. Hoofnagle AN, Roth MY. Improving the Measurement of ... "mass spectrometric immunoassay",) in which antibodies are used to enrich target proteins, which are analyzed intact by MS; and ... including conventional immunoassays (e.g., ELISA assays). Elimination of such autoantibody interferences drove the adoption of ...

https://en.wikipedia.org/wiki/Stable_isotope_standards_and_capture_by_anti-peptide_antibodies

Evaluation of the Abbott AxSYM Immunoassay Analyser - Agnes D'Souza, M. J. Wheeler, Great Britain. Medical Devices Agency (6S)- ... Smith, J; Osikowicz, G (October 1993). "Abbott AxSYM random and continuous access immunoassay system for improved workflow in ... Evaluation of the Abbott AxSYM immunoassay analyser. Medical Devices Agency. 1996. ISBN 9781858395388. ...

https://en.wikipedia.org/wiki/Abbott_AxSYM

Yalow, RS; Berson, SA (1960). "Immunoassay of endogenous plasma insulin in man". J Clin Invest. 39 (7): 1157-75. doi:10.1172/ ...

https://en.wikipedia.org/wiki/Solomon_Berson

Mass spectrometric immunoassay (MSIA) is a method that uses antibodies to analyze protein differences in biological samples.[1] ... 1995). "Mass Spectrometric Immunoassay". Analytical Chemistry. 67 (7): 1153-1158. doi:10.1021/ac00103a003. ISSN 0003-2700. PMID ... Retrieved from "https://en.wikipedia.org/w/index.php?title=Mass_spectrometric_immunoassay&oldid=758985804" ...

https://en.wikipedia.org/wiki/Mass_spectrometric_immunoassay

Definition Immunoassays are chemical tests used to detect or quantify a specific substance, the analyte, in a blood or body ... Law, B. Immunoassay: A Practical Guide. London: Taylor and Francis, 1996.. Wild, D., ed. Immunoassay Handbook, 2nd Ed. London: ... Chemiluminescent immunoassay- An immunoassay in which the label is a molecule that emits light when excited by a chemical ... Enzyme immunoassay- An immunoassay using an enzyme as the label. The enzymatic reaction product is measured to determine the ...

https://www.encyclopedia.com/medicine/divisions-diagnostics-and-procedures/medicine/immunoassay

Multi-step assays are often called separation immunoassays or heterogeneous immunoassays. Some immunoassays can be carried out ... Immunoassays can be run in a number of different formats. Generally, an immunoassay will fall into one of several categories ... Immunoassays come in many different formats and variations. Immunoassays may be run in multiple steps with reagents being added ... "The Immunoassay Handbook", 3rd Edition, David Wild, Ed., Elsevier,2008 Immunoassay at the US National Library of Medicine ...

https://en.wikipedia.org/wiki/Immunoassay

An enzyme immunoassay is any of several immunoassay methods that use an enzyme bound to an antigen or antibody. These may ... include: Enzyme-linked immunosorbent assay (ELISA) Enzyme multiplied immunoassay technique (EMIT) This article includes a list ...

https://en.wikipedia.org/wiki/Enzyme_immunoassay

Immunoassays are chemical tests used to detect or quantify a specific substance, the analyse, in a blood or body fluid sample, ...

http://www.skf.com/au/industry-solutions/medical-health-care/campaign-sites/lab-automation/applications/immunoassay-analyzer/index.html

Migratory detection immunoassay. US4978502 *. Dec 15, 1987. Dec 18, 1990. Dole Associates, Inc.. Immunoassay or diagnostic ... Three Layered Dry Phase Immunoassay Device. A light emitting immunoassay device in accordance with the present invention was ... The immunoassay devices are preferably held or positioned by use of a holding assembly such as a test strip holder known in the ... Multi-spot enzyme immunoassay method. US4818677 *. Dec 3, 1987. Apr 4, 1989. Monoclonal Antibodies, Inc.. Membrane assay using ...

http://www.google.com/patents/US5942407?dq=6,921,985

A thin layer of constant thickness of a liquid specimen for immunoassay is thus receivable between the complementary surfaces. ... Apparatus for performing an immunoassay, comprises in combination a reaction tube closed at its bottom, and in the reaction ... A further object of the present invention is to provide an element for immunoassay which can perform immunoassay with a small ... Solid phase immunoassay with carriers matching the shape of sample wells. US6207463. 20 Oct 1995. 27 Mar 2001. Labsystems Oy. ...

http://www.google.ca/patents/US4495151

horseradish peroxidase and b-galatosidase.Enzyme Immunoassay (EIA) • In enzyme immunoassays (EIA). ... Immunoassays that require separation of the bound Ab-Ag* complex are referred to as being heterogeneous immunoassays. • ... Those that do not require separation are referred to as homogeneous immunoassays.Heterogeneous and Homogeneous Immunoassays ... Immunoassays use one or more select antibodies to detect analytes of interest. ...

https://www.scribd.com/presentation/246739772/BBiomedicina

Immunoassays are analytical techniques that are widely used to detect and quantitate the concentration of a protein, metabolite ... Immunoassays are analytical techniques that are widely used to detect and quantitate the concentration of a protein, metabolite ... Homogeneous immunoassays do not require a physical separation step.. *Antigens present in excess concentrations can produce ... Immunoassays are also the mainstays in research, for example, understanding the pathophysiology of medical disorders in order ...

http://www.els.net/WileyCDA/ElsArticle/refId-a0001135.html

Membrane-based immunoassay method. US5432057 *. 28 Aug 1992. 11 Jul 1995. Syva Company. Simultaneous calibration heterogeneous ... Simultaneous calibration heterogeneous immunoassay. US5354692 *. 8 Sep 1992. 11 Oct 1994. Pacific Biotech, Inc.. Analyte ... Simultaneous calibration heterogeneous immunoassay. US5308775 *. 15 Sep 1992. 3 May 1994. Abbott Laboratories. Assay devices ... Simultaneous calibration heterogeneous immunoassay. US4540659 *. 16 Jul 1982. 10 Sep 1985. Syva Company. Simultaneous ...

http://www.google.ca/patents/US4849338

Immunoassay using magnetic particle. EP0420186A3 *. Sep 26, 1990. Jul 31, 1991. Fujirebio Inc.. Immunoassay using magnetic ... Metal sol particle immunoassay. US4342739 *. Jan 8, 1980. Aug 3, 1982. Fuji Photo Film Co., Ltd.. Novel material for ... Laser magnetic immunoassay method and method by a magnetophoresis apparatus therefor. US5238811 *. Apr 27, 1992. Aug 24, 1993. ... A method of immunoassay comprising the steps of reacting an antigen with an antibody, one of which is the biologically active ...

http://www.google.com/patents/US4177253?dq=%22Meaning-based+advertising+and+document+relevance+determination%22

... described according to their kinetics and structure only a few have turned out to be marker enzymes in the enzyme immunoassay ( ... Porstmann B., Porstmann T. (1988) Chromogenic Substrates for Enzyme Immunoassay. In: Ngo T.T. (eds) Nonisotopic Immunoassay. ... 5-tetramethylbenzidine as an Ames test negative chromogen for horse-radish peroxidase in enzyme-immunoassay, J. of Immunoassay ... Cox, C., 1983, NAD labeled immunoassays, Trends in Anal. Chem., 2: 129-131.CrossRefGoogle Scholar ...

https://link.springer.com/chapter/10.1007/978-1-4684-5466-6_3

... Leading medical CMO to provide high-precision, ... is proud to announce the opening of the companys first lateral flow immunoassay (LFI) production facility. Co-located within ...

https://www.prnewswire.com/news-releases/web-industries-opens-new-lateral-flow-immunoassay-lfi-manufacturing-facility-300255960.html

Immunoassay Cellular System is a no-wash bioluminescent immunoassay that measures levels of target analytes in cell lysates ... Lumit™ Immunoassay vs. Western Blot Lumit™ Immunoassays are easier and much faster than traditional Western blots while ... The Lumit™ Immunoassay Cellular System is a no-wash bioluminescent immunoassay that measures target analytes directly in cell ... How the Lumit™ Immunoassay Cellular System Works Lumit™ Immunoassay Cellular Systems include Lumit™ Secondary Antibodies ( ...

https://www.promega.com/products/immunoassay-elisa/lumit-immunoassays/lumit-immunoassay-cellular-systems/

Worldwide, IMMULITE systems have been chosen for various types of immunoassay testing due to their flexible platforms and ... The IMMULITE chemiluminescent immunoassay system is designed for ease of use, reliability, high-performance assays and fully ... Access Immunoassay System. 8. Access 2 Immunoassay System. 9. ADVIA Centaur Immunoassay System. 10. AIA - 600 II Immunoassay ... Immulite 1000 Immunoassay System. 2. Immulite 2000 Advanced Immunoassay System. 3. Immulite 2500 SMS. 4. Immulite PAP. 5. ...

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R&D Systems™ Quantikine™ Immunoassay Control Set 919 for Human Total IL-18. Immunoassay control set for Human Interleukin 18 ... R&D Systems™ Quantikine Immunoassay Control Group 10 Control for Human High Sensitivity IL-1 beta, IL-4, IL-7, IL-8, IL-10, IL- ... R&D Systems™ Quantikine Immunoassay Control Group 8 Control for Human CXCL6/GCP-2, CXCL8/IL-8, CXCL10/IP-10, CXCL11/I-TAC, ... R&D Systems™ Quantikine Immunoassay Control Group 9 Control for Human AgRP, Carbonic Anhydrase IX, CD23/Fc epsilon RII, FGF-19 ...

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... ,ARUP Laboratories is a national reference laboratory and a worldwide leader ... Access Immunoassay System. 4. Access 2 Immunoassay System. 5. ADVIA Centaur Immunoassay System. 6. AIA - 600 II Immunoassay ... AIA - 360 Immunoassay Analyzer. 8. AIA - 1800 Immunoassay Analyzer. 9. Immulite Chemiluminescent Immunoassay System. 10. ...

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Using the advantages of both instrumental analysis and immunoassay, we support you to construct an advanced quality control ... SmartAssay test kits are complete immunoassays for analyzing pesticide residue, including all required reagents. These kits ...

http://www.horiba.com/us/en/analysis-based-on/immunochemistry/immunoassay/

... method to efficiently express high levels of a recombinant untagged NT-proBNP for use as a calibrator in NT-proBNP immunoassays ... In such immunoassays, the purified analyte is also the calibration material. (see The Immunoassay Handbook, edited by David ... protein is capable of functioning as a calibrator in immunoassays specific for NT-proBNP such as those immunoassays disclosed ... 3. The purified NT-BNP of claim 2 capable of functioning as a calibrator in an immunoassay specific for NT-BNP. 4. A series of ...

http://www.freepatentsonline.com/y2004/0152128.html

Some of the major factors to consider when designing a highly parallel multiplex immunoassay are variability, sample collection ... Variability between immunoassay kits. Multiplex immunoassay kits, even from the same manufacturer, may not give identical ... Multiplex immunoassays and enzyme-linked immunosorbent assays (ELISA) are used to determine and analyze the presence of an ... Multiplex immunoassays can be differentiated by the surface to which the antigens or antibodies are attached. These surfaces ...

https://www.news-medical.net/life-sciences/Designing-a-Multiplex-Immunoassay-Factors-to-Consider.aspx

The immunoassay of claim 9, wherein the sample is taken from a human. 12. The immunoassay of claim 11, wherein the antibody is ... 2. The immunoassay of claim 1, wherein the sample is a human sample. 3. The immunoassay of claim 2, wherein the antibody is ... 4. The immunoassay of claim 3, wherein the antibody is attached to a solid support. 5. The immunoassay of claim 4, wherein the ... 8. The immunoassay of claim 7, wherein R7 is 2,4-dinitrophenyl. 9. The immunoassay of claim 3, wherein the protecting group is ...

http://www.freepatentsonline.com/7276347.html

Switching to an automated immunoassay platform. Switching from an ELISA format to Gyrolab immunoassay technology should not ... Home Magazine BioPerspectives Automating and Miniaturizing Immunoassays: Continuing the Progress to Maximum Productivity ... Transferring immunoassays from traditional standard formats such as ELISA onto an automated platform like Gyrolab offers ... Miniaturizing immunoassays can deliver tremendous savings in sample volumes, animal use, and reagent consumption. Although ...

https://www.genengnews.com/magazine/automating-and-miniaturizing-immunoassays-continuing-the-progress-to-maximum-productivity-2/

An improved microscale diffusion immunoassay utilizing multivalent reactants is disclosed. In particular, a method for ... Microscale diffusion immunoassay. US20020090644. 14 Feb 2000. 11 Jul 2002. Weigl Bernhard H.. Microscale diffusion immunoassay ... The present invention relates to immunoassays, and, more particularly, to improved microscale diffusion immunoassays utilizing ... Flow injection immunoassays have taken advantage of specific flow conditions (see U. de Alwis and G. S. Wilson, Anal. Chem. 59 ...

http://www.google.co.uk/patents/US7550267

Browse 352 market data tables and 40 figures spread through 305 pages and in-depth TOC on "Immunoassay Market" ... This segment is also expected to grow at the highest CAGR during the forecast period, owing to the increase in immunoassay ... Based on region, the global immunoassay market is dominated by North America, followed by Europe, Asia, and the Rest of the ... In Vitro Diagnostic (IVD) Market [Instruments, Reagents & Data Management Systems] [Technique (Immunoassay, Clinical Chemistry ...

https://pitchengine.com/pitches/7985e954-9aa1-4779-8658-f9dcbcfccba8

Immunoassay and Other Bioanalytical Techniques describes the strength and the versatility of these methods in a wide range of ... including multiplexed immunoassays. It presents standard and innovative applications of immunochemical and related methods, ...

https://www.routledge.com/Immunoassay-and-Other-Bioanalytical-Techniques/Emonah2/p/book/9780367389666

The present invention is directed to a membrane-based immunoassay method for an analyte of interest having at least two ... Immunoassay, 13 127-131 (1990).. 4. Bangs, L., "New Developments In Particle-Based Tests and Immunoassays," J. Int. Fed. Clin. ... Immunoassay, 13 127 131 (1990).. 8. *. Bangs, L., New Developments In Particle Based Tests and Immunoassays, J. Int. Fed. Clin ... "Latex Immunoassays," J. Clin. Immunoassay, 13 127-131 (1980) both of which are incorporated herein by reference. Various ...

http://www.google.com.au/patents/US5395754

Immunoassays are presently used worldwide for the rapid screening of drugs. Despite the fact that they are a highly valuable ... Schütz H. Drogenscreening mit Immunoassays. Pharmazie in unserer Zeit 1999;28:320-328.PubMedCrossRefGoogle Scholar ... Immunoassays are presently used worldwide for the rapid screening of drugs. Despite the fact that they are a highly valuable ... Effect of glutaraldehyde (Urin Aid) on detection of abused drugs in urine by immunoassay. Clin Chem 1994;40:1605, 1606.PubMed ...

https://link.springer.com/article/10.1385/FSMP:2:2:75

... applications and companies active in the industry , Biokit, Carolina Liquid ... Analysis of Automated Immunoassay Analyzers Market applications and companies active in the industry , Biokit, Carolina Liquid ... The emergence of automation in the medical sector is one of the many drivers that will fuel automated immunoassay analyzers ... India is one of those regions that is likely to observe exponential growth in automated immunoassay analyzers market. In India ...

https://www.openpr.com/news/1648273/analysis-of-automated-immunoassay-analyzers-market-applications-and-companies-active-in-the-industry-biokit-carolina-liquid-chemistries-corporation-inova-dx-luminex-corporation-meril-life-sciences-ortho-clinical-diagnostics-randox-laboratories-si.html

See also changes related to Immunoassay, or pages that link to Immunoassay or to this page or whose text contains "Immunoassay" ... Immunosorbent technique [r]: Sensitive immunoassay that uses an enzyme linked to an antibody or antigen as a marker for the ... Retrieved from "http://en.citizendium.org/wiki?title=Immunoassay/Related_Articles&oldid=100394252" ...

http://en.citizendium.org/wiki/Immunoassay/Related_Articles

New Mass Spectrometric Immunoassay Consumables Enable Large Biomolecule Analysis Proprietary microcolumn technology enhances ... The new Thermo Scientific Mass Spectrometric Immunoassay (MSIA) provides a robust technology designed to purify target proteins ... New Thermo Scientific Mass Spectrometric Immunoassay Consumables Enable Large Biomolecule Analysis (Photo: Business Wire) ... New Thermo Scientific Mass Spectrometric Immunoassay Consumables Enable Large Biomolecule Analysis (Photo: Business Wire) ...

https://www.businesswire.com/news/home/20140616005427/en/Mass-Spectrometric-Immunoassay-Consumables-Enable-Large-Biomolecule

An example of a qualitative assay is an immunoassay test for pregnancy. (encyclopedia.com)
The purpose of an immunoassay is to measure (or, in a qualitative assay, to detect) an analyte. (encyclopedia.com)
Enzyme Linked Immunosorbent Assay (ELISA) is an application of solid phase heterogeneous sandwich immunoassay that combines enzyme-antibody label reagent with a solid phase bound antibody. (scribd.com)
The molecule detected by the immunoassay is often referred to as an "analyte" and is in many cases a protein, although it may be other kinds of molecules, of different sizes and types, as long as the proper antibodies that have the required properties for the assay are developed. (wikipedia.org)
Immunoassays may be run in multiple steps with reagents being added and washed away or separated at different points in the assay. (wikipedia.org)
It shows (a) how miniaturizing immunoassays can deliver significant savings in sample volumes and (b) how the Gyrolab platform secures smooth assay/method transfer between key entities such as pharma companies, CROs, and CMOs, even those on different continents. (genengnews.com)
Although reducing assay volumes in manual ELISA immunoassays is possible, it is tedious to carry out and challenging to maintain assay performance. (genengnews.com)
These may include: Enzyme-linked immunosorbent assay (ELISA) Enzyme multiplied immunoassay technique (EMIT) This article includes a list of related items that share the same name (or similar names). (wikipedia.org)
ELISA method development and the design of our assay validations are tailored to meet both client and regulatory requirements, and we are experienced in working with clients on the generation and qualification of critical immunoassay reagents. (criver.com)
On the basis of technique the market is segmented into enzyme-linked immunosorbent assay (ELISA), Radioimmunoassay (RIA), chemiluminescence immunoassays (CLIA) and others. (openpr.com)
Diagnostic accuracy of the immunoassay was assessed against a whole spike protein-based recombinant immunofluorescence assay (rIFA) by receiver operating characteristic (ROC) analyses. (nih.gov)
To find the best assay for your needs, choose from popular immunoassay categories below or contact our field application specialists (FAS) , who can answer your questions and provide you with individualized immunoassay support, including information about new immunoassay technologies. (thermofisher.com)
All our immunoassay systems feature standardized test menus, assay protocols, instrument processes and reference ranges. (beckmancoulter.com)
FirePlex NHP Key Cytokines - Immunoassay Panel (ab239455) contains all the reagents you need to run a 16-plex assay: antibody conjugated particles, non-human primate (NHP) Core Reagents and Protein Standard Mix. (abcam.com)
the most common types are enzyme-linked immunosorbent assay (ELISA) and enzyme-multiplied immunoassay technique (EMIT). (thefreedictionary.com)
Enzyme immunoassay (EIA) and enzyme-linked immunosorbent assay (ELISA) have become household names for medical laboratories, manufacturers of in vitro diagnostic products, regulatory bodies, and external quality assessment and proficiency-testing organizations. (thefreedictionary.com)
The BED IgG-Capture Enzyme Immunoassay (BED assay) is a commercially available and widely used test for recent HIV infection. (nih.gov)
The assay is designed for use on all Roche immunoassay systems for low-, mid- and high-volume testing environments. (rttnews.com)

Some immunoassays can be carried out simply by mixing the reagents and sample and making a physical measurement. (wikipedia.org)
Radioactive isotopes can be incorporated into immunoassay reagents to produce a radioimmunoassay (RIA). (wikipedia.org)
SmartAssay test kits are complete immunoassays for analyzing pesticide residue, including all required reagents. (horiba.com)
Novel conjugates of protected aldehyde active metabolites of cyclophosphamide including reagents and immunogens thereof and monoclonal antibodies generated by these immunogens, said reagents and immunogens useful in immunoassays for the monitoring of the active metabolites of cyclophosphamide in patients being treated with cyclophosphamide. (freepatentsonline.com)
Among the various products and services available, the reagents and kits segment accounted for the largest share of the immunoassay market in 2014. (pitchengine.com)
This segment is also expected to grow at the highest CAGR during the forecast period, owing to the increase in immunoassay tests conducted due to rising aging population, rising number of chronic diseases, increased variety of reagents and the analytical techniques employed, trends like the high-growth at-home testing market, and accessibility to a wide range of reagents. (pitchengine.com)
In Vitro Diagnostic (IVD) Market [Instruments, Reagents & Data Management Systems] [Technique (Immunoassay, Clinical Chemistry, Molecular Diagnostics, Haematology) & Applications (Diabetes, Infectious Diseases, Cancer & Cardiology)] Systems, End Users] - Forecast To 2017. (pitchengine.com)
Global Immunoassay Reagents and Devices Market accounted to USD 16.25 billion in 2016 growing at a CAGR of 7.8% during the forecast period of 2017 to 2024. (openpr.com)
The global immunoassay reagents market is segmented on the basis of product type, technique, application, end-user, and geography. (openpr.com)
On the basis of product type the global immunoassay reagents market is segmented into reagents, analyzers, software and services. (openpr.com)
On the basis of application the global immunoassay reagents markt is segmented into infectious diseases, endocrinology, cardiology, oncology and others. (openpr.com)
The Global Immunoassay Reagents and Devices Market Report contains an in-depth profiling of the key market players, along with the recent developments (new product launches, partnerships, agreements, collaborations, and joint ventures) and strategies adopted by them to sustain and strengthen their positions in the market. (openpr.com)
In 2017, the reagents and kits segment accounted for the largest share of the immunoassays market. (webnewswire.com)
GenScript offers a broad range of protein detection and immunoassay products, including ONE-HOUR Western™ Detection System, Express™ ELISA Kits, Protein A ELISA Kit, cell lys ate products and related reagents for protein analysis that support your research. (genscript.com)
This guideline addresses components for harmonizing and assessing the quality of immunoassay systems for several commonly used dose-response indicator categories, e.g., radioisotopes, enzymes, fluorescence, luminescence, reagents, and experimental components criteria essential to characterizing an immunoassay. (clsi.org)
As an IVD kit manufacturer developing commercial immunoassays or a researcher developing non-commercial kits, you require the most reliable, sensitive reagents available. (neogen.com)

MARLBOROUGH, Mass. , April 28, 2016 /PRNewswire/ -- Web Industries, Inc., innovative provider of precision contract manufacturing and converting services, is proud to announce the opening of the company's first lateral flow immunoassay (LFI) production facility. (prnewswire.com)
I think 'Multiplex Flow Immunoassay' simply refers to the scientific method used in performing an ANA test. (healingwell.com)
Lateral Flow Immunoassay for Rapid Detection of Grapevine Leafroll-Associated Virus. (harvard.edu)
To further verify the result, we developed a multi-target lateral flow immunoassay strip (msLFIA) with staking pad design to obtain on-site rapid response for clinical diagnosis of PJI. (nature.com)
In addition, we developed a multi-target lateral flow immunoassay strip (msLFIA) with staking pad design to obtain on-site rapid response for clinical diagnosis of PJI, which the multi-target design is used to increase specificity and the stacking pad design is to enhance detection sensitivity. (nature.com)
Web Industries, Inc., a provider of precision contract manufacturing and converting services, opened the company's first lateral flow immunoassay production facility co-located within the company's existing location in Boston, Massachusetts . (areadevelopment.com)

The purpose of this study is to demonstrate the ability of the Strep A Fluorescent Immunoassay Analyzer to accurately detect a throat swab specimen for the presence or absence of Strep A when compared to culture. (clinicaltrials.gov)
This benchtop immunoassay analyzer fits labs with space constraints and delivers fast, reliable results. (beckmancoulter.com)
This immunoassay analyzer gives technologists the benefit of ease of use without sacrificing throughput. (beckmancoulter.com)
ResearchMoz added Latest Research Report titled ' Global Chemiluminescence immunoassay analyzer Industry 2015: Market Forecasts for Liquefied Natural Gas (LNG), Oil Storage, Pipelines and Gas Processing ' to it's Large Report database. (sbwire.com)
Albany, NY -- ( SBWIRE ) -- 02/08/2016 -- The Global Chemiluminescence immunoassay analyzer Industry Report 2015 is a professional and in-depth study on the current state of the Chemiluminescence immunoassay analyzer industry. (sbwire.com)
The Chemiluminescence immunoassay analyzer market analysis is provided for the international markets including development trends, competitive landscape analysis, and key regions development status. (sbwire.com)
The Chemiluminescence immunoassay analyzer industry development trends and marketing channels are analyzed. (sbwire.com)
The Freedom EVOlyzer is a new enzyme immunoassay (EIA) analyzer that offers fully automated microplate processing. (thefreedictionary.com)

Qualitative immunoassays are often used to detect antigens on infectious agents and antibodies that the body produces to fight them. (encyclopedia.com)
For example, immunoassays are used to detect antigens on Hemophilus, Cryptococcus , and Streptococcus organisms in the cerebrospinal fluid (CSF) of meningitis patients. (encyclopedia.com)
An immunoassay is a test that uses immunocomplexing when antibodies and antigens are brought together. (scribd.com)
Most, though not all, immunoassays involve chemically linking antibodies or antigens with some kind of detectable label. (wikipedia.org)
Immunoassays employ a variety of different labels to allow for detection of antibodies and antigens. (wikipedia.org)
Multiplex immunoassays can be differentiated by the surface to which the antigens or antibodies are attached. (news-medical.net)
For the detection and quantitation of antibodies or antigens an immunoassay has to fulfill three basic requirements: highly specific, highly sensitive, and reproducible. (springer.com)
Antigen Quantification: Measurement of Multivalent Antigens by Solid-Phase Immunoassay (R.G. Hamilton). (booktopia.com.au)
RSV antigens were detected by rapid enzyme immunoassay in the nasal aspirates of 6. (thefreedictionary.com)

Immunoassays are chemical tests used to detect or quantify a specific substance, the analyte, in a blood or body fluid sample, using an immunological reaction. (encyclopedia.com)
In other words, in some immunoassays, the analyte may be an antibody rather than an antigen. (wikipedia.org)
Multiplex immunoassays and enzyme-linked immunosorbent assays (ELISA) are used to determine and analyze the presence of an analyte in a sample through the binding of complimentary antigen-antibody pairs. (news-medical.net)
The present invention is directed to a membrane-based immunoassay method for an analyte of interest having at least two sterically separate antigenic sites. (google.com.au)
Our microfluidic method facilitates hands-free saliva analysis by integrating sample pretreatment (filtering, enrichment, mixing) with electrophoretic immunoassays to quickly measure analyte concentrations in minimally pretreated saliva samples. (pnas.org)
The invention concerns a method for the detection of an analyte in a sample liquid by an enzyme-immunoassay in which an enzyme-labelled compound is partitioned between a solid and a liquid phase and the amount of enzyme label in the liquid phase outside the solid phase is determined as a measure of the. (google.co.uk)
Based on the sandwich immunoassay principle, a test strip was made of a nitrocellulose membrane dotted with monoclonal antibodies against VCO1 as analyte capture molecules. (hindawi.com)

The IMMULITE chemiluminescent immunoassay system is designed for ease of use, reliability, high-performance assays and fully integrated operation. (bio-medicine.org)

K-Blue Advanced Plus is a one-bottle stabilized chromogenic substrate for use with horseradish peroxidase immunoassays. (neogen.com)

Key players in the immunoassay market include are Roche Diagnostics (Switzerland), Siemens Healthcare (Germany), Abbott Laboratories (U.S.), Beckman Coulter (U.S.), Ortho Clinical Diagnostics (U.S.), and bioMérieux (France). (pitchengine.com)
The unique dashboard view of the players in the immunoassay interference blocker market allows readers to understand the key strategies implemented by individual players and their performance in the immunoassay interference blocker market featuring the focus areas of the immunoassay interference blocker market players. (bccresearch.com)
Additionally, the competitive structure of prominent players in the immunoassay interference blocker market is also discussed in the study. (bccresearch.com)

Immunoassays that require separation of the bound Ab-Ag* complex are referred to as being heterogeneous immunoassays. (scribd.com)
Heterogeneous immunoassays require a physical separation between antibody‐bound and free analytes. (els.net)
Schematic representation of competitive limited‐reagent (a) and immunometric excess‐reagent (b) heterogeneous immunoassays. (els.net)
Multi-step assays are often called separation immunoassays or heterogeneous immunoassays. (wikipedia.org)
Photophysics of Heterogeneous Immunoassays (O.S. Khahil). (booktopia.com.au)

Immuno modules -These modules are designed for solid phase immunoassays. (thermofisher.com)
Immunochemical Considerations in the Analysis of Data from Non-Competitive Solid-Phase Immunoassays (J.H. Peterman). (booktopia.com.au)
Considerations of the Interpretation of the Specificity of Monoclonal Antibodies Determined in Solid-Phase Immunoassays (F.J. Stevens). (booktopia.com.au)

Immunoassays which employ enzymes are referred to as enzyme immunoassays (EIAs), of which enzyme-linked immunosorbent assays (ELISAs) and enzyme multiplied immunoassay technique (EMIT) are the most common types. (wikipedia.org)
The first article in this two-article series ( Automating and Miniaturizing Immunoassays: Starting the Switch to Maximum Productivity ) describes the Gyrolab™ immunoassay technology platform, focusing on its ability to save time during biopharma development and to generate higher-quality data compared with traditional enzyme-linked immunosorbent assays (ELISAs). (genengnews.com)

The simplest immunoassay method measures the quantity of precipitate, which forms after the reagent antibody (precipitin) has incubated with the sample and reacted with its respective antigen to form an insoluble aggregate. (encyclopedia.com)
Miniaturizing immunoassays can deliver tremendous savings in sample volumes, animal use, and reagent consumption. (genengnews.com)
Immunoassay analyzers are used to identify and detect the concentration of specific substances in a sample, usually using an antibody as a reagent. (beckmancoulter.com)

Immunoassays are analytical techniques that are widely used to detect and quantitate the concentration of a protein, metabolite, or drug in a biological sample. (els.net)
Immunoassay analyses reduce costs by providing real-time data, thus reducing the time spent waiting for analytical results and the amount of material that has to be excavated. (cpeo.org)
The analytical applicability of the presented immunoassay is verified by CRP measurements in human blood serum samples. (mdpi.com)
Analytical Comparison of the Architect Syphilis TP and Liaison Treponema Automated Chemiluminescent Immunoassays and Their Performance in a Reverse Syphilis Screening Algorithm. (harvard.edu)
The mass spec immunoassay (MSIA) workflow was developed to provide a simple, automated process for purification of targeted analytes for downstream detection using multiple analytical techniques, such as mass spectrometry. (tecan.com)
CAMBRIDGE, Mass., July 21, 2011 /PRNewswire/ -- Quanterix Corporation, an in-vitro diagnostics (IVD) company providing life science researchers and IVD labs single molecule technology with unprecedented sensitivity and precision, announced that the analytical performance of AccuPSA™, a fifth-generation digital immunoassay for Prostate Specific Antigen (PSA), demonstrated a robust 2-log improvement in sensitivity over today's ultrasensitive third-generation assays for measuring PSA in patients following radical prostatectomy. (mdtmag.com)

Immunoassays may be qualitative (positive or negative) or quantitative (amount measured). (encyclopedia.com)
Quantitative immunoassays are performed by measuring the signal produced by the indicator reaction. (encyclopedia.com)
A newer approach to immunoassays involves combining real-time quantitative polymerase chain reaction (RT qPCR) and traditional immunoassay techniques. (wikipedia.org)
The microengraving immunoassay is based on intaglio printing, in which a glass slide is temporarily sealed to the array of nanowells to capture proteins secreted by confined cells in both a multiplexed and quantitative manner. (mdpi.com)
Intended as an aid in the in the diagnosis of myocardial infarction, the electrochemiluminescence (ECL) immunoassay is used for the in vitro quantitative determination of TnT-hs in human serum and plasma, the company said. (rttnews.com)

This high growth can be attributed to time-effectiveness and cost effectiveness provided by mass spectrometry as compared to the enzyme assays and immunoassays technology. (prnewswire.com)
Because of the complexity and long time commitments involved in the development of such assays, particularly highly specific or efficient assays and immunoassays, many pharmaceutical companies, biotechs, and academic institutions have found that it becomes a bottleneck, holding up valuable research. (genscript.com)

Mass spectrometric immunoassay ( MSIA ) is a method that uses antibodies to analyze protein differences in biological samples. (wikipedia.org)
The new Thermo Scientific Mass Spectrometric Immunoassay (MSIA) provides a robust technology designed to purify target proteins, peptides and therapeutic antibodies in a simplified way for downstream mass spectrometric analysis. (businesswire.com)
Discover the benefits of automation in the mass spec immunoassay (MSIA) workflow. (tecan.com)

Schematic representation of a homogeneous immunoassay in which, when present, the sample antigen binds to the antibody, thereby allowing access of a substrate to the active site of an enzyme labelled with the antigen. (els.net)

With the completion of this acquisition, Abbott strengthened its diagnostics portfolio and established itself as a leading player in the point-of-care testing and immunoassays market. (marketsandmarkets.com)

On the basis of technology, the immunoassay market is segmented into ELISA, rapid tests, western blotting, enzyme-linked immunospot (ELISPOT), immuno-PCR, and other immunoassay technologies. (webnewswire.com)

Immunoassay is the method of choice for measuring analytes normally present at very low concentrations that cannot be determined accurately by other less expensive tests. (encyclopedia.com)
Immunoassays use one or more select antibodies to detect analytes of interest. (scribd.com)
Analytes in biological liquids such as serum or urine are frequently measured using immunoassays for medical and research purposes. (wikipedia.org)

On these grounds, automated immunoassay analyzers market size from infectious diseases will collect a revenue of more than USD 7 billion by 2024. (openpr.com)
The increasing incidence of chronic and infectious diseases, technological advancements in immunoassay instruments and introduction of novel automated systems, and growth in the biotechnology and biopharmaceutical industries are some the major factors driving the growth of this market. (webnewswire.com)
BioCheck is a provider of high quality enzyme immunoassay research services and products, and a leading provider of immunoassay kits for cardiac and tumor biomarkers, infectious diseases, thyroid function, steroids, and fertility hormones. (thefreedictionary.com)

Multiplex immunoassays are useful in cases of limited sample volume or time. (news-medical.net)
By taking advantage of the Luminex ® technology, we have developed two multiplex immunoassays to monitor protein targets of depletion or retention. (sigmaaldrich.com)

Unfortunately, the available commercial immunoassays are labour intensive, require large sample volumes, and have practical limitations, such as low stability and high production costs. (mdpi.com)

The recent study by Fact.MR on global Chemiluminescence Immunoassays (CLIA) market offers a 5-year forecast between 2020 and 2025. (bccresearch.com)
The study analyzes crucial trends that are currently determining the growth of the global chemiluminescence immunoassays (CLIA) market. (bccresearch.com)
The study also provides dynamics that are responsible for influencing the future status of the global chemiluminescence immunoassays (CLIA) market over the forecast period. (bccresearch.com)
A detailed assessment of the global chemiluminescence immunoassays (CLIA) market value chain analysis, business execution, and supply chain analysis across the regional markets has been covered in the report. (bccresearch.com)
A list of prominent companies operating in the global chemiluminescence immunoassays (CLIA) market along with their product portfolio enhances the reliability of this comprehensive research study. (bccresearch.com)
The study offers a comprehensive analysis on diverse features including production capacities, demand, product developments, revenue generation and sales in the global chemiluminescence immunoassays (CLIA) market across the globe. (bccresearch.com)
A comprehensive estimate on the global chemiluminescence immunoassays (CLIA) market has been provided through an optimistic as well as a conservative scenario, taking into account the sales of global chemiluminescence immunoassays (CLIA) devices during the forecast period. (bccresearch.com)
The global chemiluminescence immunoassays (CLIA) market has been analyzed for each market segment, in terms of value (US$ Mn). (bccresearch.com)
Market estimates at global and regional levels for global chemiluminescence immunoassays (CLIA) is available in terms of "US$ Mn" for value, along with market attractiveness evaluation in the report. (bccresearch.com)
Key sections have been elaborated in the global chemiluminescence immunoassays (CLIA) market report, which have helped to deliver projection on the regional markets. (bccresearch.com)
These chapters include the regional macros (economic and business environment outlook), which are expected to have a momentous influence on the growth of global chemiluminescence immunoassays (CLIA) market during the forecast period. (bccresearch.com)
Country-specific valuation on demand for global chemiluminescence immunoassays (CLIA) has been offered for each regional market, along with the market scope estimate and forecast, price index, and impact analysis of dynamics of prominence in regions and countries. (bccresearch.com)
The report sheds light on the leading manufacturers of global chemiluminescence immunoassays (CLIA) devices along with their detailed profiles. (bccresearch.com)
Essential and up-to-date data information related to the market performers, who are principally engaged in the production of global chemiluminescence immunoassays (CLIA) devices, has been brought with the help of a detailed dashboard view. (bccresearch.com)
Company presence is mapped and presented through the matrix for all the prominent players thus providing the readers with actionable insights, which helps in thoughtfully presenting market status, and predicting the competition level in global chemiluminescence immunoassays (CLIA) market. (bccresearch.com)

This report analyzes the worldwide markets for Immunoassay Systems in US$ Million by the following product segments - Enzyme Immunoassay Systems, Fluorescence Immunoassay Systems, Chemiluminescence Immunoassay Systems, Radio Immunoassay Systems, and Nephelometric Immunoassay Systems. (mdtmag.com)

2019. Designing a Multiplex Immunoassay: Factors to Consider . (news-medical.net)
The PMR report on immunoassay interference blocker market examines the historical and current market scenario and offers a forecast for the period, 2019-2029. (bccresearch.com)

The use of the automated immunoassay analyzers for cardiac ailments, endocrine diseases, and cancer has observed a rise since the last few years, owing to the accurate and speedy diagnosis capability of the product. (openpr.com)
Enzyme immunoassay in the diagnosis of Lyme borreliosis. (prohealth.com)
This innovative multiplex immunoassay is a powerful alternative to ELISAs and VNTs for veterinary diagnosis of flavivirus-related diseases. (hindawi.com)
LAB Maastricht UMC+ in the Netherlands has a long history with myasthenia gravis, using gold standard immunoassays to enable accurate diagnosis and provide the information necessary to allow effective treatment. (tecan.com)

To carry out vital activities like analysis and evaluation of test results, this product is prominently used in various diagnostic laboratories, subject to which automated immunoassay analyzers market share from diagnostic laboratories will exhibit the highest annual growth rate over the coming timeframe. (openpr.com)
For instance, in July 2015, the company launched its Elecsys HTLV-I/II immunoassay test which detects antibodies against Human T-lymphotropic virus I or II infection in routine diagnostic samples and donated samples. (marketsandmarkets.com)
We have partnered with an international manufacturer of diagnostic products and services to better understand how scientists around the world, involved in the development of immunoassays, source the suppliers and critical raw materials they need. (biotechniques.com)
To validate the diagnostic accuracy of a Euroimmun SARS-CoV-2 IgG and IgA immunoassay for COVID-19. (nih.gov)

Drug‐of‐abuse immunoassay testing on a chemistry analyser versus a microchip array. (els.net)
Thyrotropin (TSH), free thyroxine (fT4) and testosterone assays have been used as a probe to evaluate the performances of a new modular chemiluminescence (CL) immunoassay analyser, the Abbott Architect™ i 2000. (degruyter.com)

There are a variety of detectors used in immunoassays such as enzymes, fluorophores, luminescent tags, electrochemical reactions and immunosensors. (els.net)
Hence, we have developed a simple, cost effective, and label-free electrochemical immunoassay for the measurement of CRP in a drop of serum sample using an immunosensor strip made up of a screen printed carbon electrode (SPE) modified with anti-CRP functionalized gold nanoparticles (AuNPs). (mdpi.com)
A new homogeneous electrochemical immunoassay strategy was developed for ultrasensitive detection of carcinoembryonic antigen (CEA) based on target-induced proximity hybridization coupled with rolling circle amplification (RCA). (rsc.org)

Immunoassay control set for Human Interleukin 18 protein levels. (fishersci.com)
The instant application discloses a protein calibrator for use in the NT-proBNP immunoassays disclosed in application Ser. (freepatentsonline.com)
0002] This invention relates to the expression and purification of proteins, more particularly to the expression and purification of a protein calibrator used for standardization of an immunoassay, and most particularly to the expression and purification of NT-BNP used to calibrate standards in an immunoassay which measures the concentration of NT-proBNP in bodily fluids. (freepatentsonline.com)
Sensitive immunoassay that uses an enzyme linked to an antibody or antigen as a marker for the detection of a specific protein, especially an antigen or antibody. (citizendium.org)
b) Multiplex Immunoassay Protein Standard Mix, such as ab221503 . (abcam.com)
A novel immunoassay that identifies and quantifies blood levels of the PAM4 protein may detect early-stage pancreatic cancer, according to study findings presented ahead of the 2010 Gastrointestinal Cancers Symposium. (healio.com)
Microengraving is a novel immunoassay forcharacterizing multiple protein secretions from single cells. (mdpi.com)
Our study directly validates that protein secretion rates can be quantified by the microengraving immunoassay. (mdpi.com)

Immunoassay using antibody-enzyme conjugates. (springer.com)

Enzyme (EIA) immunoassay was developed as an alternative to radioimmunoassay (RIA). (encyclopedia.com)
Radioimmunoassay, enzyme and non-enzyme-based immunoassays. (springer.com)

According to Global Market Insights, Inc., "Worldwide automated immunoassay analyzers market having had a revenue of USD 8 billion in 2016, will collect a revenue of USD 25 billion by 2024 with an annual growth rate of more than 15% over 2017-2024. (openpr.com)
Pertaining to the same, U.S. dominated North America automated immunoassay analyzers market share in 2016, by accounting for 90% of the regional contribution. (openpr.com)
2016) Immunoassay. (springer.com)

Dona, V., 1985, Homogeneous colorimetric enzyme inhibition immunoassay for cortisol in human serum with Fab anti-glucose-6-phosphate dehydrogenase as a label modulator, J. Immunol. (springer.com)

The researchers used the PAM4-serum enzyme immunoassay for the detection and quantification of PAM4 in the serum of 68 patients who had surgical resection of pancreatic cancer and compared them with 19 healthy participants. (healio.com)
Immunoassay determinations of the serum levels of certain proteins or carbohydrates serve as tumor markers. (cms.gov)

We offer two basic categories of services: 1) Immunoassay development service for drug compound discovery and 2) immunoassay development service for therapeutic antibody detection. (genscript.com)

This invention relates to an element for immunoassay. (google.ca)
The present invention relates to immunoassays, and, more particularly, to improved microscale diffusion immunoassays utilizing multivalent reactants. (google.co.uk)

The emergence of automation in the medical sector is one of the many drivers that will fuel automated immunoassay analyzers market. (openpr.com)
The deployment of automation in the current and forthcoming product portfolio will lead to consumers giving preference to automated immunoassay analyzers, which is likely to boost automated immunoassay analyzers industry size noticeably. (openpr.com)
Speaking of which, automated immunoassay analyzers industry share from hospitals is slated to generate considerable revenue by 2024. (openpr.com)
India is one of those regions that is likely to observe exponential growth in automated immunoassay analyzers market. (openpr.com)
In addition, the government has also been promoting public & private partnerships to provide excellent medical service mainly across rural areas, which consequentially, will fuel Asia Pacific automated immunoassay analyzers market share considerably. (openpr.com)
These analyzers have been gaining prominence among consumers subject to the requirement of monitoring therapeutic drugs, which is likely to augment automated immunoassay analyzers industry size substantially. (openpr.com)
The emergence of software based technological advancements in instruments to perform multiple tests at the same time is also bound to favorably enhance the automated immunoassay analyzers industry growth. (openpr.com)
The United States has been one of lucrative business avenues for automated immunoassay analyzers market. (openpr.com)
The U.S. government is also promoting the usage of automated products by implementing supportive regulatory norms, which will significantly propel U.S. automated immunoassay analyzers market share. (openpr.com)
Chemiluminescence, basically a chemical reaction, constitutes one of the lucrative product segments of automated immunoassay analyzers industry. (openpr.com)
Beckman Coulter offers a variety of scalable immunoassay analyzers and assays, all of which can help optimize your laboratory's uptime, reliability and performance. (beckmancoulter.com)
Extend the services of your core laboratory with our range of immunoassay analyzers and comprehensive portfolio of assays. (beckmancoulter.com)

Immunoassay methods are common and commercially available. (cpeo.org)

An immunoassay is a biochemical test that measures the presence or concentration of a macromolecule or a small molecule in a solution through the use of an antibody (usually) or an antigen (sometimes). (wikipedia.org)
EDITOR-The paper by Lehmann et al 1 confirms the view that stool immunoassay for Helicobacter pylori is a non-invasive, cheap, and reliable test for assessing H pylori infection in unselected patients. (bmj.com)
Enzyme immunoassay (EIA) test kits are also available for RDX and TNT. (cpeo.org)
The purpose of the investigation reported here was a comparative evaluation of these two enzyme immunoassay test kits for the detection of C trachomatis endocervical infections. (thefreedictionary.com)

Under optimal conditions, the present immunoassay measures CRP in a linear range from 0.4-200 nM (0.047-23.6 µg mL −1 ), with a detection limit of 0.15 nM (17 ng mL −1 , S/N = 3) and sensitivity of 90.7 nA nM −1 , in addition to a good reproducibility and storage stability. (mdpi.com)
HIV incidence estimation using the BED capture enzyme immunoassay: systematic review and sensitivity analysis. (nih.gov)

6. The immunoassay of claim 5, wherein the solid support is nanoparticles. (freepatentsonline.com)
This paper describes an application of Rubpy dye-doped silica nanoparticles (RSNPs) as signal reporter in a dot fluorescence immunoassay strip for rapid screening of Vibrio cholera O1 (VCO1). (hindawi.com)
Magnetic nanoparticles (MNPs) are commonly used for contrast enhancement in magnetic resonance imaging, as magnetic carriers in automated immunoassays instruments, or for cell concentration at the bench. (nsti.org)

For this reason, RIA has been largely replaced in routine clinical laboratory practice by enzyme immunoassay. (encyclopedia.com)
Whether you run dozens or thousands of tests per day, you can rely on the same innovation and quality in our immunoassay instruments and systems that you know and trust from the rest of our total laboratory solution portfolio. (beckmancoulter.com)
This immunoassay system supports the expansion needs of your growing laboratory. (beckmancoulter.com)

Immunoassays measure the formation of antibody-antigen complexes and detect them via an indicator reaction. (encyclopedia.com)
In some cases, an immunoassay may use an antigen to detect for the presence of antibodies, which recognize that antigen, in a solution. (wikipedia.org)
Immunoassay tests are designed to detect specific chemicals by measuring the chemicals' response to specific antibodies. (cpeo.org)
Using the conventional monoplex immunoassay ELISA technique as a benchmark, the procedure was used to detect several grapevine and tree fruit viruses. (nih.gov)

This report explicates on vital dynamics such as the drivers, restraints and opportunities for key market players along with key stakeholders as well as emerging players associated with the development of chemiluminescence immunoassays (CLIA). (bccresearch.com)

Persistence Market Research (PMR) recently published a report on the immunoassay interference blocker market that provides readers with an overall market outlook with the help of an extensive market analysis. (bccresearch.com)
The PMR study helps companies in this landscape gain a complete idea of the market and aid in taking key business decisions with the help of vital findings and exclusive insights into the immunoassay interference blocker market. (bccresearch.com)
The PMR report offers an assessment of the key dynamics of the immunoassay interference blocker market which includes market drivers, industry trends, and opportunities held by the market. (bccresearch.com)
The PMR report is divided in key sections that allows the report audience to gain a detailed understanding of individual aspects of the report on the immunoassay interference blocker market. (bccresearch.com)
How much will the immunoassay interference blocker market value in the 2029? (bccresearch.com)
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PMR's study on immunoassay interference blocker market begins with an executive summary that sheds light on the various immunoassay interference blocker market aspects covered in the report. (bccresearch.com)
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This product is the result of years of R&D aimed at creating the most powerful immunoassay interference blocker in the market. (biospace.com)

Anatomy5

Organisms8

Diseases7

Chemicals and Drugs65

Analytical, Diagnostic and Therapeutic Techniques and Equipment64

Phenomena and Processes9

Disciplines and Occupations6

Anthropology, Education, Sociology and Social Phenomena1

Technology, Industry, Agriculture6

Information Science1

Named Groups2

Health Care10

Immunological comparison of the proteins of chicken and rat liver ribosomes. (1/4669)

Performance and specificity of monoclonal immunoassays for cyclosporine monitoring: how specific is specific? (2/4669)

Automated homogeneous immunoassay for gentamicin on the dimension clinical chemistry system. (3/4669)

Serum IGF-binding protein-6 and prostate specific antigen in breast cancer. (4/4669)

Differential immunodiagnosis between cystic hydatid disease and other cross-reactive pathologies. (5/4669)

An immunoluminometric assay for N-terminal pro-brain natriuretic peptide: development of a test for left ventricular dysfunction. (6/4669)

Endometrial evaluation is not predictive for in vitro fertilization treatment. (7/4669)

Malignant transformation of human prostatic epithelium is associated with the loss of androgen receptor immunoreactivity in the surrounding stroma. (8/4669)

Immunoassay

Immunoenzyme Techniques

Fluorescence Polarization Immunoassay

Enzyme Multiplied Immunoassay Technique

Reagent Kits, Diagnostic

Sensitivity and Specificity

Enzyme-Linked Immunosorbent Assay

Fluoroimmunoassay

Radioimmunoassay

Cross Reactions

False Positive Reactions

Evaluation Studies as Topic

Autoanalysis

Luminescent Measurements

Substance Abuse Detection

Immunoglobulin G

Nephelometry and Turbidimetry

Europium

Antibodies, Monoclonal

Reproducibility of Results

Antibody Specificity

Antibodies, Viral

Gas Chromatography-Mass Spectrometry

Immunoglobulin M

False Negative Reactions

Antibodies, Immobilized

Latex Fixation Tests

Digoxin

Quality Control

Reference Standards

Serologic Tests

Feces

Calibration

Indicators and Reagents

Fluorescent Antibody Technique

Antibodies

Antibodies, Bacterial

Clinical Laboratory Techniques

Microspheres

Reference Values

Biological Markers

Microchemistry

Antigens, Viral

Chromatography, High Pressure Liquid

Phenytoin

Limit of Detection

Antigens, Bacterial

Antibodies, Heterophile

Antigens, Fungal

Fluorescence Polarization

alpha-Fetoproteins

Immunoradiometric Assay

Radioimmunoprecipitation Assay

Predictive Value of Tests

Chlamydia trachomatis

Immune Sera

Rubella virus

Latex

Immunologic Techniques

HIV Antibodies

Streptavidin

Rotavirus

Chlamydia Infections

Thyroxine

Forensic Medicine

Seroepidemiologic Studies

Saliva

Mannans

Epitopes

Polymerase Chain Reaction

Horseradish Peroxidase

Specimen Handling

Pregnancy

Fluorescent Antibody Technique, Direct

Serum

Biological Assay

Time Factors

Gastroenteritis

Rabbits

Diagnostic Errors