The Ames test is a biological assay to assess the mutagenic potential of chemical compounds.

Another setup commonly used for measuring chemotaxis and chemokinesis utilizes the under-agarose cell migration assay, whereby a layer of agarose gel is placed between a cell population and a chemoattractant.

A novel assay that mimics dry bacterial exposure to touch surfaces was developed because this test method is thought to more closely replicate real world touch surface exposure conditions.

In fact, the enzyme-linked immunosorbent assay ( ELISA ), which uses antibodies, is currently one of the most sensitive tests modern medicine uses to detect various biomolecules.

A subsequent review of these tests by the Federal Insecticide, Fungicide, and Rodenticide Act Scientific Advisory Panel points out that while " the negative results decrease the probability that the Cry9C protein is the cause of allergic symptoms in the individuals examined ... in the absence of a positive control and questions regarding the sensitivity and specificity of the assay, it is not possible to assign a negative predictive value to this "

Culture remains useful in selected circumstances and is currently the only assay approved for testing non-genital specimens.

Genotyping is the process of elucidating the genotype of an individual with a biological assay.

The basic idea of microfluidic biochips is to integrate assay operations such as detection,

Screening for PKU is done with bacterial inhibition assay ( Guthrie test ), immunoassays using fluorometric or photometric detection, or amino acid measurement using tandem mass spectrometry ( MS / MS ).

#" Elevated serum prolactin assay, when measured in the appropriate clinical setting at 10 to 20 minutes after a suspected event, is a useful adjunct for the differentiation of generalized tonic-clonic or complex partial seizure from psychogenic nonepileptic seizure among adults and older children ( Level B ).

The effort expended in separating a mass F of feed of assay xf into a mass P of product assay xp and waste of mass W and assay xw is expressed in terms of the number of separative work units needed, given by the expression SWU

This easy assay, which can be seen with the naked eye, without the aid of instruments, is possible because catalase has a very high specific activity, which produces a detectable response.

Bioassay ( commonly used shorthand for biological assay ), or biological standardization is a type of scientific experiment.

This is also known as the " all or none " response assay.

This assay is applied when the sample size is too small.

Since the assay does not involve the recording of concentration response curve, the sensitivity of the preparation is not taken into consideration.

A fasting serum insulin level of greater than the upper limit of normal for the assay used ( approximately 60 pmol / L ) is considered evidence of insulin resistance.

An example that is often used in teaching laboratories is a controlled protein assay.

The assay is a colorimetric assay in which a spectrophotometer can measure the amount of protein in samples by detecting a colored complex formed by the interaction of protein molecules and molecules of an added dye.

Bacterial lawns ( often of Serratia marcescens ) are also used extensively when as an assay method when using bacteriophage as tracers in studies of groundwater flow.

The data ( obtained from either of assay techniques used ) on which bioassay are based may be classified as quantal or graded response.

For cystic echinococcosis, imaging is the main method that is relied on for diagnosis while serology tests ( such as indirect hemogglutination, ELISA ( enzyme linked immunosorbent assay ), immunoblots or latex agglutination ) that use antigens specific for E. granulosus are used to verify the imaging results.

Commonly used tests include chromatography, immunologic assay and mass spectrometry.

A recombinant immunoblot assay is used to verify the immunoassay and the viral load is determined by a HCV RNA polymerase chain reaction.

DHFR has been used as a tool to detect protein-protein interactions in a protein-fragment complementation assay ( PCA ).

* Scintillation proximity assay, an assay used for biochemical development and screening

BERA is used primarily in biosensor applications in order to assay analytes that can interact with the immobilized cells by changing the cell membrane potential.

Fab and F ( ab ') 2 antibody fragments are used in assay systems where the presence of the Fc region may cause problems.

K562 is highly sensitive to lysis by human NK cells and, over the decades, the K562 < sup > 51 </ sup > Chromium-release assay has become the most commonly used assay to detect human NK functional activity.

The following table illustrates variability in reference ranges of prolactin between some commonly used assay methods, using a control group of healthy health care professionals ( 53 males, age 20 – 64 years, median 28 years ; 97 females, age 19 – 59 years, median 29 years ) in Essex, England:

In clinical settings, the haptoglobulin assay is used to screen for and monitor intravascular.

The technique for protein sequence determination relied upon the purification, sequencing, and cloning of the transporter protein in question, or expression cloning strategies in which transport function was used as an assay for cDNA species coding for that transporter.

* MTS assay, a biochemical cell assay used in research

In order to study the function of a lymphocyte by virtue of the proteins it generates, other scientific techniques like the ELISPOT or secretion assay techniques can be used.

A platelet aggregation assay will show an abnormal response to ristocetin with normal responses to the other agonists used.

MTT assay is used often in determining cell viability and has been validated for use by international organisations.

Reporter genes can also be used to assay for the expression of the gene of interest, which may produce a protein that has little obvious or immediate effect on the cell culture or organism.

The diagnosis can be confirmed in the laboratory by finding an absence or deficiency of the ATM protein in cultured blood cells, an absence or deficiency of ATM function ( kinase assay ), or mutations in both copies of the cell ’ s ATM gene.

Data produced by the Roadmap Epigenomics Project, which can be browsed and downloaded from the Human Epigenome Atlas, fall into five types that assay different aspects of the epigenome and outcomes of epigenomic states such as gene expression:

The diagnosis is definitively confirmed by liver biopsy with electron microscopy and assay of glucose-6-phosphatase activity in the tissue and / or specific gene testing, available in recent years.

However, at present the test of choice in adults to distinguish CML is an assay for the presence of the Philadelphia chromosome, either via cytogenetics and FISH, or via PCR for the BCR / ABL fusion gene.

Monitoring β-glucuronidase activity through the use of a GUS assay allows determination of the spatial and temporal expression of the gene in question.