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Home All Services Tests Viral assays Detailed antiviral activity test (CC50 & IC50)
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Detailed antiviral activity test (CC50 & IC50)

$150.00 – $1,000.00 / sample

In these panels of tests, each test compound is subjected to several assays to show its anti-viral activity. Check the details below for more about each test. Results are presented as half-maximal viral inhibitory concentration (IC50). Examination of different compounds together can also be done using synergy tests.

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SKU: N/A Categories: Tests, Viral assays Tags: Detailed antiviral bioassays (CCSO & ICSO), Foodborne Viruses Detection, Mechanism & Antiviral Activity, Quantitative viral load assay, Rapid antiviral bioassays, Viral Assays, Viruse Detection in Enviromental Samples and Vectors, Waterborne Viruses Detection
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Description

1. Antiviral assays

These assays are used to evaluate the virucidal efficacy of liquid, aerosol, trigger-spray microbicides intended for use on inanimate, nonporous environmental surfaces, treated surfaces and textiles, and Chemical, natural, and synthetic compounds. This practice may be employed with most viruses, which can be grown in cultured cells.

a.  Crystal Violet (CV) Assay

Crystal violet (CV) is one of the common methods used to detect cell viability. CV is a triarylmethane dye that can bind to ribose type molecules such as DNA in nuclei. Normally, dead adherent cells will detach from cell culture plates and will be removed from viable cell population during washing steps. CV staining can be used to quantify the total DNA of the remaining population and thus determine cell viability after treatment with virus and test compound. The CV staining is directly proportional to the cell biomass and can be measured at 570 nm.  Cytotoxicity of the test compounds is also determined concurrently on uninfected cells for comparison.

  • Results will be provided as half-maximal viral inhibitory concentration (IC50)

b. Plaque Reduction Assay

Plaque-based assay is a standard method used to determine virus concentration in terms of infectious dose. Viral plaque assays determine the number of plaque forming units (pfu) in a virus sample, which is one measure of virus quantity. A confluent monolayer of host cells is infected with the virus and the infected cell area will create a plaque (an area of infection surrounded by uninfected cells) which can be seen with an optical microscope. In plaque reduction assay, test compound is added in different concentrations to infected cells and number of formed plaques is counted and compared to controls (untreated infected cells). Finally, percentage reduction in plaques formation in comparison to control is recorded.

  • Results will be provided as half-maximal viral inhibitory concentration (IC50)

2. Antiviral Synergy Checkerboard Assays

Synergy measurement by checkerboard analysis is used to determine the impact on potency of the combination of drug/compound in comparison to their individual activities. This comparison is then represented as the Fractional Inhibitory Concentration (FIC) index value.

This test can be carried out by any of the early mentioned protocols:

  1. Crystal Violet (CV) Assay
  2. Antiviral Synergy Checkerboard Assays
  • Results will be provided as half-maximal viral inhibitory concentration (IC50) for each individual compound and for their combination(s)

You can also check our other services:

1- Mechanism of antiviral activity
2- Detection of foodborne viruses
3- Detection of waterborne viruses
4- Virus detection in environmental samples
5- Quantitative viral load assay
6- Rapid antiviral activity test
7- Assay on SARS-CoV-2 (COVID-19) 
Additional information
Test Type

Anti Viral Assays – Crystal Violet , Anti Viral Assays – Plaque Reduction , Synergy Chechkerboard Assays – Crystal Violet , Synergy Chechkerboard Assays – Plaque Reduction

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