bioassay

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bi·o·as·say

(bī′ō-ăs′ā′, -ă-sā′)

1. Determination of the strength or biological activity of a substance, such as a drug, by comparing its effects with those of a standard preparation on a test organism.

2. A test used to determine such strength or activity.

tr.v. bi·o·as·sayed, bi·o·as·say·ing, bi·o·as·says

To cause to undergo a bioassay.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

bioassay

(Biochemistry) a method of determining the concentration, activity, or effect of a change to substance by testing its effect on a living organism and comparing this with the activity of an agreed standard

(Biochemistry) (tr) to subject to a bioassay

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

bi•o•as•say

(n. ˌbaɪ oʊ əˈseɪ, -ˈæs eɪ; v. ˌbaɪ oʊ əˈseɪ)

n.

1. determination of the biological activity or potency of a substance, as a vitamin or hormone, by testing its effect on the growth of an organism.

v.t.

2. to subject to a bioassay.

[1910–15]

bioassay

Past participle: bioassayed
Gerund: bioassaying

Imperative
bioassay
bioassay

Present
I bioassay
you bioassay
he/she/it bioassays
we bioassay
you bioassay
they bioassay

Preterite
I bioassayed
you bioassayed
he/she/it bioassayed
we bioassayed
you bioassayed
they bioassayed

Present Continuous
I am bioassaying
you are bioassaying
he/she/it is bioassaying
we are bioassaying
you are bioassaying
they are bioassaying

Present Perfect
I have bioassayed
you have bioassayed
he/she/it has bioassayed
we have bioassayed
you have bioassayed
they have bioassayed

Past Continuous
I was bioassaying
you were bioassaying
he/she/it was bioassaying
we were bioassaying
you were bioassaying
they were bioassaying

Past Perfect
I had bioassayed
you had bioassayed
he/she/it had bioassayed
we had bioassayed
you had bioassayed
they had bioassayed

Future
I will bioassay
you will bioassay
he/she/it will bioassay
we will bioassay
you will bioassay
they will bioassay

Future Perfect
I will have bioassayed
you will have bioassayed
he/she/it will have bioassayed
we will have bioassayed
you will have bioassayed
they will have bioassayed

Future Continuous
I will be bioassaying
you will be bioassaying
he/she/it will be bioassaying
we will be bioassaying
you will be bioassaying
they will be bioassaying

Present Perfect Continuous
I have been bioassaying
you have been bioassaying
he/she/it has been bioassaying
we have been bioassaying
you have been bioassaying
they have been bioassaying

Future Perfect Continuous
I will have been bioassaying
you will have been bioassaying
he/she/it will have been bioassaying
we will have been bioassaying
you will have been bioassaying
they will have been bioassaying

Past Perfect Continuous
I had been bioassaying
you had been bioassaying
he/she/it had been bioassaying
we had been bioassaying
you had been bioassaying
they had been bioassaying

Conditional
I would bioassay
you would bioassay
he/she/it would bioassay
we would bioassay
you would bioassay
they would bioassay

Past Conditional
I would have bioassayed
you would have bioassayed
he/she/it would have bioassayed
we would have bioassayed
you would have bioassayed
they would have bioassayed

Collins English Verb Tables © HarperCollins Publishers 2011

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Noun 1. bioassay - appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard

bio-assay

assay - a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components; frequently used to test for the presence or concentration of infectious agents or antibodies etc.

immunoassay, immunochemical assay - identification of a substance (especially a protein) by its action as an antigen; "PSA in the blood can be measured with an immunochemical assay"

pregnancy test - a physiological test to determine whether a woman is pregnant

Verb 1. bioassay - subject to a bio-assay

assay - analyze (chemical substances)

Translations

bi·o·as·say

n. bioensayo, prueba de determinación de la potencia de una droga en animales.

English-Spanish Medical Dictionary © Farlex 2012

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References in periodicals archive ?

Keywords: Botanicals, Citrus, Bioassay, Insecticides, P.

Evaluation of Synthetic Insecticides and Essential Oils for the Management of Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)

parahaemolyticus challenge (bioassays one and two), a bioassay (4 d) was conducted to determine the [LC.sub.50] (lethal concentration, 50%) using animals weighing 528 [+ or -] 31.7 mg and 452 [+ or -] 50 mg.

Effect of medicinal plants on the survival of white shrimp (Penaeus vannamei) challenged with WSSV and Vibrio parahaemolyticus

The direct result of these efforts is a rapidly growing amount of in vitro bioassay data being generated for thousands of chemicals and stored in databases accessible to public users, allowing for new statistical and computational techniques to be developed.

Nonanimal Models for Acute Toxicity Evaluations: Applying Data-Driven Profiling and Read-Across

The method used most often worldwide is the mouse bioassay (MBA), where an extract of shellfish is injected intraperitoneally into a number of mice and death is the endpoint that determines whether the sample is safe to consume or not (Garthwaite, 2000; Stewart and McLeod, 2014).

Detection and Profiling of Diarrheic Marine Biotoxins in Shellfish by mRNA Analysis of Exposed Caco-2 Cells Using qRT-PCR and Multiplex Magnetic Bead-Based Assays

Following on our pioneering work on cosmetic human growth hormone and its efficacies on the intact skin, Regeron commercialized tens of cosmetic growth factors and developed their accompanying bioassay systems.

Reverse-Aging Biotechnology Regeron

PESHAWAR -- Ms Sadia, PhD Research scholar has submitted her thesis on ' PHYTOCHEMICAL EVALUATION AND BIOASSAY SCREENING OF BREBERIS LYCIUM ROYLE' to University of Peshawar, in partial fulfillment of the requirement for the award of Doctor of Philosophy (Ph.D ) in Biotechnology.

Ms. Sadia submits PhD thesis in Biotechnology

Traditionally, insecticide susceptibility tests in mosquito populations use the bioassay methodologies recommended by the World Health Organization (WHO), where mosquitoes are exposed to impregnated papers with known concentrations of an insecticide during a given time (WHO 2016).

A new methodology to evaluate entomopathogenic fungi and formulated insecticides to control adults of Aedes aegypti (Diptera: Culicidae)

An activity-based bioassay may serve this purpose, by functioning as a first-line screening tool, complementing the conventional targeted and untargeted analytical methods.

Activity-Based Detection of Cannabinoids in Serum and Plasma Samples

In the article titled "Establishment of a Consistent L929 Bioassay System for TNF-[alpha] Quantitation to Evaluate the Effect of Lipopolysaccharide, Phytomitogens, and Cytodifferentiation Agents on Cytotoxicity of TNF-[alpha] Secreted by Adherent Human Mononuclear Cells" [1], the figures were missing due to a publisher error.

Erratum to "Establishment of a Consistent L929 Bioassay System for TNF-[alpha] Quantitation to Evaluate the Effect of Lipopolysaccharide, Phytomitogens and Cytodifferentiation Agents on Cytotoxicity of TNF-[alpha] Secreted by Adherent Human Mononuclear Cells"

ABSTRACT: A series of biphenyl derivatives were synthesized and evaluated for brine shrimp lethal bioassay and antibacterial activities.

BRINE-SHRIMP LETHALITY BIOASSAY AND ANTIBACTERIAL ACTIVITY OF BIPHENYL ANALOGUES

Table 1: Incorporating New Technologies into Bioassay Development

CHI to Host Roundtable Discussions at Optimizing Bioassays for Biologics Conference