• The Aptima HBV Quant assay is a laboratory test designed to measure the amount of Hepatitis B Virus (HBV) DNA (deoxyribonucleic acid) in plasma or serum from patients with an HBV infection. (fda.gov)
  • Labs will be able to run their LDTs simultaneously with commercially available IVD assays, and results will release automatically to laboratory information systems. (genomeweb.com)
  • Maintain the quality of folate measurements and document continued laboratory proficiency in performing the folate microbiologic assay through an annual performance report. (cdc.gov)
  • The performance verification program follows the CLSI EP9-A2 guideline (Clinical Laboratory Standards Institute, 2002) and provides 40 samples per matrix to allow a comprehensive method comparison to the CDC CLIA-approved microbiologic assay. (cdc.gov)
  • The iGenix laboratory is purpose-built to support genomics-based drug development with services including DNA purification from clinical samples, targeted genotyping for clinical study participation or qualification, and custom/companion diagnostic assay development. (prweb.com)
  • Assays intended for use in the field, or other non-laboratory environments, may be intended to merely detect the presence of a particular molecule so that samples can be passed on for more serious investigation. (news-medical.net)
  • The IP available on Abcam's discovery platforms allows users to effortlessly take the same clone they are verifying in their laboratory assays and take it all the way into the clinic. (news-medical.net)
  • The company said that it also offers turnkey and custom assays performed in a CLIA-certified, CAP-accredited laboratory. (genomeweb.com)
  • They compared the sensitivity of the new assay technique, the timed prion seeding assay (tASA), to other currently available tests (two bioassays in laboratory rodents and three commercially available TSE rapid tests). (medicalnewstoday.com)
  • As with other NAA tests, the Xpert MTB/RIF assay should be interpreted along with clinical, radiographic, and other laboratory findings. (cdc.gov)
  • An assay is an investigative (analytic) procedure in laboratory medicine, pharmacology, environmental biology and molecular biology for qualitatively assessing or quantitatively measuring the presence, amount, or functional activity of a target entity (the analyte). (wikipedia.org)
  • Since the assay itself (the analytic step) gets much attention, steps that get less attention by the chain of users, i.e. the preanalytic and the post analytic steps, are often less stringently regulated and generally more prone to errors - e.g. preanalytic steps in medical laboratory assays may contribute to 32-75% of all lab errors. (wikipedia.org)
  • A chemosensitivity assay is a laboratory test that measures the number of tumor cells that are killed by chemotherapy. (wikipedia.org)
  • The assay is performed by DiaTech Oncology in its CLAI-certified, CAP-accredited laboratory. (wikipedia.org)
  • In the case of fire assaying of gold and platinum ores, the lengthy time required to carry out an assay generally is offset by carrying out large numbers of assays simultaneously, and a typical laboratory will be equipped with several fusion and cupellation furnaces, each capable of taking multiple samples, so that several hundred analyses per day can be carried out. (wikipedia.org)
  • The Fischer assay is a standardized laboratory test for determining the oil yield from oil shale to be expected from a conventional shale oil extraction. (wikipedia.org)
  • Assay Office is a heritage-listed mining laboratory at 167 Walsh Street, Mareeba, Shire of Mareeba, Queensland, Australia. (wikipedia.org)
  • Nuclease protection assay is a laboratory technique used in biochemistry and genetics to identify individual RNA molecules in a heterogeneous RNA sample extracted from cells. (wikipedia.org)
  • Egg hatch assay (EHA) is a laboratory tool used to determine a given parasite's resistance to extant drug therapy. (wikipedia.org)
  • Indirect immunoperoxidase assay (IPA) is a laboratory technique used to detect and tirate viruses that do not cause measurable cytopathic effects and cannot be measured by classical plaque assays. (wikipedia.org)
  • A wound healing assay is a laboratory technique used to study cell migration and cell-cell interaction. (wikipedia.org)
  • The first floor of the building held the assayers offices, vaults and safes, assaying and melting rooms (furnaces), laboratory and reagents storage. (wikipedia.org)
  • It offers a variety of specialist analytical services including nickel testing, antique silver dating, non-destructive compositional analysis, plating thickness measurement and a melt and assay service for scrap precious metal carried out in their fully independent on-site laboratory. (wikipedia.org)
  • The assay building was used as a laboratory for determining the level of metal contained within the ore and the level of impurities contained within the metal after smelting. (wikipedia.org)
  • DPPH has two major applications, both in laboratory research: one is a monitor of chemical reactions involving radicals, most notably it is a common antioxidant assay, and another is a standard of the position and intensity of electron paramagnetic resonance signals. (wikipedia.org)
  • The assay kits are all-inclusive systems, including optimized media for use during cell culture and in preparing test compound treatments, a LRH-1 reference agonist, luciferase detection reagents, and an assay plate. (prweb.com)
  • The assay reagents are automatically mixed with the separated DNA. (fda.gov)
  • 2018). To facilitate the use of common key reagents, CDC offers assay materials containing common key reagents for epidemiologic use in population surveys. (cdc.gov)
  • The invention relates to agglutination assays and related kits, reagents and devices. (google.com.au)
  • If the assay involves addition of exogenous reactants (the reagents), then their quantities are kept fixed (or in excess) so that the quantity (and quality) of the target is the only limiting factor for the reaction/assay process, and the difference in the assay outcome is used to deduce the unknown quality or quantity of the target in question. (wikipedia.org)
  • The present invention disclosure provides methods and compositions for a universal tag assay wherein a universal detector having detection probes is incubated with tagged molecules having identifier tags corresponding to targets, and hybridization of an identifier tag to a complementary detection probe. (google.com)
  • One of the more powerful methods for this purpose has been the radioligand binding assay (Yamamura et al, 1978). (springer.com)
  • A cleavable signal element for use in quantitative and qualitative assay devices and methods is described. (google.ca)
  • Assay devices comprising the cleavable signal elements are described, as are analytic methods adapted to their use. (google.ca)
  • In particular methods of assaying small analytes having few epitopes are disclosed, by means of using hub moieties to which multiple analytes may be bound by a first epitope, together with a further moiety capable of. (google.com.au)
  • Therefore methods that can stimulate fundamental steps of this process and provide a tool for testing potential therapeutic agents have been developed in the form of in vitro and in vivo assays. (news-medical.net)
  • In the meantime, many in vivo assay methods have been developed that permit better quantification, and are also much easier to perform. (news-medical.net)
  • Crude oil assay tests and testing methods listing. (intertek.com)
  • HA) and the hemagglutination inhibition assay (HI or HAI) were developed in 1941-42 by American virologist George Hirst as methods for quantitating the relative concentration of viruses, bacteria, or antibodies. (wikipedia.org)
  • HUMARA Assay is one of the most widely used methods to determine the clonal origin of a tumor. (wikipedia.org)
  • In comparison to the previous over-coated plate-based methods, SPA has a number of advantages that makes it more popular: Assay flexibility - the concentration of the components in the assay can be adjusted to suit the user due to the higher surface area design of the SPA beads, hence providing the user flexibility in designing assay. (wikipedia.org)
  • The thermofluor assay was the first high-throughput thermal shift assay and its utility and limitations has spurred the invention of a plethora of alternate methods. (wikipedia.org)
  • Although precursors can be found in earlier literature, most current assays are based on methods described by Garner and Revzin and Fried and Crothers. (wikipedia.org)
  • Large-Scale Interlaboratory Study to Develop, Analytically Validate and Apply Highly Multiplexed, Quantitative Peptide Assays to Measure Cancer-Relevant Proteins in Plasma. (cancer.gov)
  • Both the standard qualitative test interpretation (positive, negative, or indeterminate) and the quantitative assay measurements (Nil, TB, and Mitogen concentrations or spot counts) should be reported. (cdc.gov)
  • The Zika Virus NS1 ELISA assay is a highly sensitive and specific assay suitable for the quantitative detection of Zika Virus NS1 in a range of biological samples. (genengnews.com)
  • ATCC Cell Proliferation Assay kits are convenient and valuable tools for the quantitative evaluation of a cell population's response to external factors that affect cell viability and growth. (atcc.org)
  • The Emit 2000 Phenytoin Assay is a homogeneous enzyme immunoassay intended for use in the quantitative analysis of phenytoin in human serum or plasma. (bio-medicine.org)
  • Among them, in vitro assays have been quantitative and expeditious as initial approximations that warrant further confirmation in vivo . (news-medical.net)
  • On the other hand, older generation qualitative assays, especially bioassays, may be much more gross and less quantitative (e.g., counting death or dysfunction of an organism or cells in a population, or some descriptive change in some body part of a group of animals). (wikipedia.org)
  • If the cells do not have high intracellular potassium and low intracellular sodium, then (1) the cell membrane may not be intact, and/or (2) the sodium-potassium pump may not be operating well As with many kinds of viability assays, quantitative measures of physiological function do not indicate whether damage repair and recovery is possible. (wikipedia.org)
  • A hybridization assay comprises any form of quantifiable hybridization,[clarification needed] i.e. the quantitative annealing[clarification needed] of two complementary strands of nucleic acids, known as nucleic acid hybridization. (wikipedia.org)
  • The assay can be run as a high throughput assay, unlike quantitative Northern-blotting or the RNAse-protection assay, which are labor-intensive and thus difficult to perform on a large number of samples. (wikipedia.org)
  • INT or 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-phenyl-2H-tetrazolium is a popularly used tetrazolium salt (usually chloride), similar to tetrazolium chloride that on reduction produces a red formazan dye that can be used for quantitative redox assays. (wikipedia.org)
  • Fisherbrand™ Pacific Hemostasis FDP Assay is a fast, easy-to-use latex agglutination assay for use in measuring fibrinogen degradation products (FDP) in serum and urine. (fishersci.com)
  • 4 . The assay device of claim 1 wherein said analyte binding cleavable signal elements comprise a cleavable spacer and a signal responsive moiety, and wherein said signal responsive moiety is adapted to reflect or scatter incident light. (google.ca)
  • An assay is an analytical procedure capable of quantitatively or qualitatively determining the presence, concentration, or activity of a target analyte in a sample. (news-medical.net)
  • Having determined the target analyte of an assay, the specificity of the assay towards that molecule must be confirmed. (news-medical.net)
  • The dynamic range is the concentration range at which the response of the assay is directly proportional to the concentration of the target molecule, allowing the quantity of analyte present to be determined. (news-medical.net)
  • Molecules that interact with the target analyte are often employed in assays, and these must be ensured to not also interact with other molecules present in the sample. (news-medical.net)
  • The measured entity is generally called the analyte, the measurand or the target of the assay. (wikipedia.org)
  • The assay usually aims to measure an intensive property of the analyte and express it in the relevant measurement unit (e.g. molarity, density, functional activity in enzyme international units, degree of some effect in comparison to a standard, etc. (wikipedia.org)
  • Like other hybridization assays, it relies on complementarity, where the capture probe competes between the analyte and the tracer-a labelled oligonucleotide analog to the analyte. (wikipedia.org)
  • Despite hybridization-ligation assay's robustness, sensitivity and added specificity for the 3'-end of the oligonculeotide analyte, the hybridization-ligation assay is not specific for the 5' end of the analyte. (wikipedia.org)
  • As for the hybridization-ligation assay, the DLA is specific for the parent compound because the efficiency of ligation over a bulge loop is low, and thus the DLA detects the full-length analyte with both intact 5' and 3'-ends. (wikipedia.org)
  • citation needed] Single-analyte assays or low-to-mid-plex procedures typically predate the rise of their multiplex versions, which often require specialized technologies or miniaturization to achieve a higher degree of parallelization. (wikipedia.org)
  • ELISAs are a type of assay that is not multiplex per se because each assay detects a single analyte, but it is typically parallelized via microtiter plates to achieve high-throughput sample processing. (wikipedia.org)
  • This assay has a short assay time of only two hours, with specificity and sensitivity both in excess of 90%, even in regions endemic with Dengue. (genengnews.com)
  • One significant limitation of thermal assays lies in the specificity and validity of results in animals as models of human pain. (wikipedia.org)
  • The specificity of the hybridization-ligation assay for ligation at the 3'-end is particularly relevant because the predominant nucleases in blood are 3' to 5' exonucleases. (wikipedia.org)
  • The dual ligation hybridization assay (DLA) extends the specificity of the hybridization-ligation assay to a specific method for the parent compound. (wikipedia.org)
  • The enzyme recognizes all base substitutions and insertions/deletions, and cleaves the 3′ side of mismatched sites in both DNA strands with high specificity This assay has been used to identify and analyze mutations in a variety of organisms and cell types, as well as to confirm genome modifications following genome editing (using CRISPR/TALENs/zinc fingers). (wikipedia.org)
  • Variants of the competition assay are useful for measuring the specificity of binding and for measurement of association and dissociation kinetics. (wikipedia.org)
  • Key strengths of the MIP technology include its high specificity to the target and its scalability for high-throughput, multiplexed analyses where tens of thousands of genomic loci are assayed simultaneously. (wikipedia.org)
  • Thymidine Incorporation Assay BrdU offered by a company Thermo Fisher Scientific includes a nucleoside analog that is identified during active DNA synthesis by employing immunohistochemistry. (news-medical.net)
  • The transwell migration assay (a modification of the classical Boyden chamber assay) is frequently utilized to assess endothelial cell migration, which is one of the main in vitro assays in the repertoire of Thermo Fisher Scientific. (news-medical.net)
  • However, current enzyme assays typically involve in vitro reactions using prepared enzyme samples, which may not directly correlate with enzyme activity in a cell. (asbmb.org)
  • The RBC's used in HA and HI assays are typically from chickens, turkeys, horses, guinea pigs, or humans depending on the selectivity of the targeted virus or bacterium and the associated surface receptors on the RBC. (wikipedia.org)
  • Upon successful completion of an assay, (i.e. if the metallurgical content is found be equal or better than that claimed by the maker and it otherwise conforms to the prevailing law) the assay offices typically stamp a hallmark, or poinçon on the item to certify its metallurgical content. (wikipedia.org)
  • Metallurgical assay is typically completed in this way to ensure that an accurate assay is performed. (wikipedia.org)
  • Selection and amplification binding assay (SAAB) is a molecular biology technique typically used to find the DNA binding site for proteins. (wikipedia.org)
  • The toeprinting assay, also known as the primer extension inhibition assay, is a method used in molecular biology that allows you to examine the interactions between messenger RNA and ribosomes or RNA-binding proteins. (wikipedia.org)
  • eBioscience, an Affymetrix business, announced the availability of the PrimeFlow RNA Assay, a flow cytometry assay capable of simultaneously detecting RNA and proteins within millions of cells at single-cell resolution. (genomeweb.com)
  • ATP test Calcein AM Clonogenic assay Ethidium homodimer assay Evans blue Fluorescein diacetate hydrolysis/Propidium iodide staining (FDA/PI staining) Flow cytometry Formazan-based assays (MTT/XTT) Green fluorescent protein Lactate dehydrogenase (LDH) Methyl violet Propidium iodide, DNA stain that can differentiate necrotic, apoptotic and normal cells. (wikipedia.org)
  • The assay uses the protein annexin A5 to tag apoptotic and dead cells, and the numbers are then counted using either flow cytometry or a fluorescence microscope. (wikipedia.org)
  • CS1 maint: Multiple names: authors list (link) Darzynkiewicz, Z, Galkowski, D, Zhao, H. (2008) Analysis of apoptosis by cytometry using TUNEL assay. (wikipedia.org)
  • Examples: Propidium iodide Trypan blue 7-Aminoactinomycin D Mitochondrial activity or caspase assays: Resazurin and Formazan (MTT/XTT) can assay for various stages in the apoptosis process that foreshadow cell death. (wikipedia.org)
  • Micro-Culture Kinetic (MiCK) assay, developed by DiaTech Oncology, is a clinical pathology test that measures apoptosis induced in specific patient's cancer cells via chemotherapy. (wikipedia.org)
  • In molecular biology, an annexin A5 affinity assay is a test to quantify the number of cells undergoing apoptosis. (wikipedia.org)
  • This principle can be applied to many different reporter proteins and is also the basis for the yeast two-hybrid system , an archetypical PCA assay. (wikipedia.org)
  • General principle of the protein complementation assay: a protein is split into two (N- and C-terminal) halves and reconstituted by two interacting proteins (here called "bait" and "prey" because a bait protein can be used to find an interacting prey protein). (wikipedia.org)
  • When fluorescent proteins are reconstituted the PCA is called Bimolecular fluorescence complementation assay . (wikipedia.org)
  • With the PrimeFlow assay, researchers can now incorporate the simultaneous analysis of RNA transcripts and proteins to elevate their understanding of single-cell dynamics, the company said. (genomeweb.com)
  • Corning offers a variety of polystyrene surfaces for the binding or covalent immobilization of cells, proteins, nucleic acids, and other types of biomolecules for use in microplate-based assays. (corning.com)
  • The invention disclosed relates to an electrochemical assay which is particularly concerned with an assay for the presence of, or amount of, glycosylated haemoglobin in a blood sample, but which extends to a general assay for detecting the presence of, monitoring the level of or determining the concentration of compounds containing cis-diol groups, such as glycols, nucleic acid components, sugars, polyols, catechols and glycosylated proteins. (google.ca)
  • The concept underlying the SCGE assay is that undamaged DNA retains a highly organized association with matrix proteins in the nucleus. (wikipedia.org)
  • An overlay assay is a biological technique used to find proteins that bind to a protein of interest. (wikipedia.org)
  • The contribution of specific genes or proteins to the bacteria's ability to invade cells can be easily assayed using this method. (wikipedia.org)
  • Each method has its strengths and weaknesses but they all struggle with intrinsically disordered proteins without any clearly defined tertiary structure as the essence of a thermal shift assay is measuring the temperature at which a protein goes from well-defined structure to disorder. (wikipedia.org)
  • They were precisely quantified using highly sensitive digital PCR assays to analyze amplification of EGFR, MET, FGFR3, MYC, ERBB2, and MYCN genes at +3, +6, and +12 copies against a single well-characterized genomic background, the company said. (genomeweb.com)
  • iGenix today announced it has received CLIA approval for its first diagnostic assay created to run on the Illumina BeadXpress, a high-throughput genomic analysis platform manufactured by Illumina Inc. The pharmacogenomics assay certified was built as a "proof-of-principle" test for CLIA certification, and is one of several in the iGenix R&D pipeline. (prweb.com)
  • Genomic and proteomic assays: Cells can be assayed for activation of stress pathways using DNA microarrays and protein chips. (wikipedia.org)
  • Multiplex analysis Although each probe examines one specific genomic locus, multiple probes can be combined into a single tube for multiplexed assay that simultaneously examines multiple loci. (wikipedia.org)
  • While other detergents interfere with the assay at high concentration, the interference caused by SDS is of two different modes, and each occurs at a different concentration. (wikipedia.org)
  • Reliability - Assay-ready cells are cryopreserved at a highly functional state in the concentration you need, providing you with the reliable tools you need to perform, standardize, and reproduce your experiments. (atcc.org)
  • Additionally, assay design may differ depending on the parameter under investigation, such as the difference in determining the concentration of an enzyme in a sample compared with determining the activity of an enzyme in a sample. (news-medical.net)
  • Importantly, the assay must be sensitive enough that the molecule concentration falls within the dynamic range of the assay. (news-medical.net)
  • The invention disclosed relates to an electrochemical assay which is particularly concerned with an assay for the presence of, or amount of, glycosylated haemoglobin in a blood sample, but which extends to a general assay for detecting the presence of, monitoring the level of or determining the concentration. (google.ca)
  • A robust assay with direct monitoring of the product is facilitated with a convenient concentration working range minimising experimental associated with low concentrations. (hindawi.com)
  • The ligand-binding assay methodology quantified the concentration of the hormone in the test material by comparing the effects of the test sample to the results of varying amounts of known protein (ligand). (wikipedia.org)
  • Essential aspects of binding assays include, but are not limited to, the concentration level of reactants or products (see radioactive section), maintaining the equilibrium constant of reactants throughout the assay, and the reliability and validity of linked reactions. (wikipedia.org)
  • Assays for the Determination of Protein Concentration" (PDF). (wikipedia.org)
  • Interferon-Gamma Release Assays (IGRAs) are whole-blood tests that can aid in diagnosing Mycobacterium tuberculosis infection. (cdc.gov)
  • Interferon-γ release assays (IGRA) are medical tests used in the diagnosis of some infectious diseases, especially tuberculosis. (wikipedia.org)
  • Interferon-γ (IFN-γ) release assays rely on the fact that T-lymphocytes will release IFN-γ when exposed to specific antigens. (wikipedia.org)
  • As current assays are unable to examine clot formation in normal blood flow, clinicians have been left unsure as to the best way to approach treatment. (medscape.com)
  • Clonogenic assay of cells in vitro. (nih.gov)
  • Clonogenic assay or colony formation assay is an in vitro cell survival assay based on the ability of a single cell to grow into a colony. (nih.gov)
  • A clonogenic assay is a cell biology technique for studying the effectiveness of specific agents on the survival and proliferation of cells. (wikipedia.org)
  • I have heard of a LDH release assay (Lactate Dehydrogenase) can any one help me with a protocol for this assay? (bio.net)
  • Other variants of migration assays include under-agarose assay, Teflon fence assay, wound healing assay and phagokinetic track assay. (news-medical.net)
  • The sputum is mixed with the reagent that is provided with the assay, and a cartridge containing this mixture is placed in the GeneXpert machine. (cdc.gov)
  • MTT assays are usually done in the dark since the MTT reagent is sensitive to light. (wikipedia.org)
  • The MTS assay is often described as a 'one-step' MTT assay, which offers the convenience of adding the reagent straight to the cell culture without the intermittent steps required in the MTT assay. (wikipedia.org)
  • For general information on the Influenza SARS-CoV-2 Multiplex Assay, refer to the CDC Frequently Asked Questions about COVID-19 for Laboratories . (cdc.gov)
  • A multiplex assay is a type of assay used in research to simultaneously measure multiple analytes (dozens or more) in a single run/cycle of the assay. (wikipedia.org)
  • The ability to perform such multiplex assay experiments measuring large numbers of biomolecular analytes has been facilitated by the completion of the human genome sequence and that of many other model organisms. (wikipedia.org)
  • Strictly speaking, a multiplex assay is not necessarily high-throughput. (wikipedia.org)
  • When the execution of a single multiplex assay generates data for a large number of analytes (e.g., gene expression levels for all genes in the human genome), it is considered high-throughput. (wikipedia.org)
  • Binding Antibody Multiplex Assay (BAMA) can be run using multiple ligands to profile multiple antibody isotypes and subclasses. (wikipedia.org)
  • Accelerate discovery with consistent and reproducible assay tools. (corning.com)
  • It is a homogenous, highly sensitive, reproducible assay, and adaptable to high-throughput screening. (atcc.org)
  • It is also vital when seeding plates for assays, such as the plaque assay, because the plates need a known number of live replicating cells for the virus to attach to and replicate in, in order to get an accurate result. (wikipedia.org)
  • Plaque assay protocol" (PDF). (wikipedia.org)
  • The new OncoScan FFPE Assay Kit, utilizing Affymetrix' unique Molecular Inversion Probe (MIP) technology, is capable of analyzing small amounts of highly degraded DNA from FFPE samples quickly and affordably, providing a significant step forward in solid tumor cancer analysis. (aol.com)
  • He co-invented Molecular Inversion Probe assay and co-founded ParAllele BioScience to develop this multiplexed technology for genetic testing. (wikipedia.org)
  • Use the osteo assay surface to enhance bone cell differentiation, functional analysis, and tartrate acide phosphate (TRAP) activity research, along with many other drug discovery applications. (corning.com)
  • INDIGO's LRH-1 assay kits are cell-based genetic reporter assay systems. (prweb.com)
  • We offer expert capabilities for the preparation and characterization of assay-ready cells, either from authenticated ATCC cell lines or your own proprietary cell lines. (atcc.org)
  • Without the need for cell cultivation, maintenance, or counting, assay-ready cells give you the flexibility you need to perform your experiments when you want. (atcc.org)
  • Have confidence in your data-start your next experiment with fully characterized and authenticated assay-ready cell lines from ATCC. (atcc.org)
  • This key event that concludes the skin sensitization process is monitored in an in vitro assay, the human T cell priming assay (hTCPA). (springer.com)
  • Human T cell priming assay (hTCPA) for the identification of contact allergens based on naive T cells and DC-IFN-γ and TNF-α readout. (springer.com)
  • The assay essentially tests every cell in the population for its ability to undergo "unlimited" division. (nih.gov)
  • assaying the motility of each of said plurality of selected cell types upon a single substrate in a parallel fashion. (freepatentsonline.com)
  • Is a resazurin-based cell proliferation assay that is sensitive and non-toxic. (atcc.org)
  • A majority of endothelial cell assays utilize human umbilical vein endothelial cells or bovine aortic endothelial cells - not because these types of cells are good representatives of vascular conditions in vivo , but primarily because they are relatively easy to harvest from large blood vessels. (news-medical.net)
  • 24- or 96-multiwell BD FluoroBlok insert (with 3 μm pore size) coated with human fibronectin was developed by a company BD Biosciences, and also serves as a cell migration assay. (news-medical.net)
  • It is important to keep in mind that assay conditions can alter metabolic activity and thus tetrazolium dye reduction without affecting cell viability. (wikipedia.org)
  • Functional assays: Assays of cell function will be highly specific to the types of cells being assayed. (wikipedia.org)
  • For example, motility is a widely used assay of sperm cell function. (wikipedia.org)
  • For Cell-killing Particle assays, the surviving fraction of cells is used to approximate the Poisson Distribution of virus particles amongst cells and therefore determine the number of CKPs encountered by each cell. (wikipedia.org)
  • Secretion assay is a process used in cell biology to identify cells that are secreting a particular protein (usually a cytokine). (wikipedia.org)
  • One Cell Systems - Gel Microdrop (GMD) Secretion Assay technology. (wikipedia.org)
  • Cell culture assays are standardized by ASTM, ISO, and BSI (British Standards Institution. (wikipedia.org)
  • The assay starts with producing a tetraploid cell in which every chromosome exists fourfold. (wikipedia.org)
  • If a viable animal can be produced from an induced pluripotent stem cell using the tetraploid complementation assay, then the induced stem cells are deemed equivalent to embryonal stem cells. (wikipedia.org)
  • This is also called a scratch assay because it is done by making a scratch on a cell monolayer and capturing images at regular intervals by time lapse microscope. (wikipedia.org)
  • Several yeast cell lines have been developed for the YES and YAS assay, both proprietary and publicly available. (wikipedia.org)
  • In 1996, Lustig and Marc Kirschner invented a paracrine signaling assay and used it to identify Xnr1, which is part of a cell signaling pathway generating left-right asymmetry. (wikipedia.org)
  • Some of the benefits of using a secreted reporter molecule like MetLuc is its no-lysis protocol that allows one to be able to conduct live cell assays and multiple assays on the same cell. (wikipedia.org)
  • INDIGO offers both screening services and assay kits for the pharmaceutical, biotechnology, agri-business, nutriceutical industries, as well as government research agencies and academic researchers. (prweb.com)
  • Additionally, as described before, this assay produces a response in two discrete stages, allowing researchers to model both acute and tonic pain using a single noxious chemical. (wikipedia.org)
  • Through the development of RIA technology, researchers have been able to move beyond the use of radioactivity, and instead, use liquid- and solid-phase, competitive, and immunoradiometric assays. (wikipedia.org)
  • citation needed] The MiCK assay reveals which chemotherapeutic agent(s) will kill a specific patient's cancer cells. (wikipedia.org)
  • Intertek's crude oil assay laboratories provide clients with professional, independent, and impartial crude oil quality data needed to make beneficial commercial trading and refining feedstock decisions. (intertek.com)
  • Crude oil assay tests can vary in detail, depth, and scope, depending upon client requirements. (intertek.com)
  • Additional crude oil assay tests are available, depending upon client needs and requirements. (intertek.com)
  • A crude oil assay is the chemical evaluation of crude oil feedstocks by petroleum testing laboratories. (wikipedia.org)
  • The results of crude oil assay testing provide extensive detailed hydrocarbon analysis data for refiners, oil traders and producers. (wikipedia.org)