Virotag® Reagents
Rapid, Direct, Biologically Relevant Virus Quantitation
The Virus Counter® platform and Virotag® reagents were specially developed to quantify viruses rapidly and with high specificity utilizing the Virus Counter® instrument. The reagents offer a biologically-relevant readout with versatility to address unique quantification needs. Virus samples stained with Virotag® reagents are quantified after a 30-minute incubation.
Virotag® DY reagents are based on a dual stain approach that uses fluorogenic dyes to detect virus particles. The reagent can be used for the quantification of all enveloped viruses. The Virotag® reagent product line is based on an antibody-driven recognition of virus particles. Antibodies selected in the Virotag® reagents are labeled with fluorophores and are highly specific for indicated viruses.
Virotag® AB and Virotag® DY Reagents
Use the Virotag® AB (antibody-based) and Virotag® DY (dye-based) reagents to label your virus samples and analyze on the Virus Counter® instrument. Enables real-time tracking of virus titer in your process:
- Optimize growth conditions
- Maximize yields
- Identify problems sooner
Target your specific virus with highly specific antibody-based reagents
| Enveloped Virus | Virotag® AB Reagent |
|---|---|
| Enveloped Virus (universal) | |
| Baculovirus | (Virotag BCVB) |
| Influenza A | (Virotag INVA) |
| Influenza B | (Virotag INVB) |
| Lentivirus | (Virotag VSVG*) |
* for VSV-G pseudotyped Lentivirus
Virotag® AB Reagent (Antibody-based Detection)
Virotag® AB Reagent – The Ideal Quantification Solution
Antibody-Based Virus Detection for Direct and Reliable Particle Quantification
Virotag® AB reagents enable direct, biologically specific detection of virus particles using fluorescently labeled antibodies. By targeting defined viral epitopes, the system delivers reliable and real-time particle counts to support confident decision-making.
The antibody-based approach complements established analytical methods by providing an additional, direct measurement of total virus particles, enabling a more comprehensive understanding of viral samples.
- Direct measurement of total virus particles
- Biologically specific detection via antibody binding
- Complements established analytical workflows
- Enables faster access to decision-relevant data
- Simple no-wash workflow for efficient sample processing
Virotag® Reagent Kits
| Code | |
AAV2-3 | for Adeno-Associated Virus Serotypes 2, 3 |
BCVB | for Baculovirus |
VSVG | for pseudo typed viruses such as Lentivirus or BacMam |
INVA | for Influenza A seasonal flu virus |
INVB | for Influenza B seasonal flu virus |
New - Virotag® DY Reagent (Universal Detection System)
Universal Detection
Virotag® DY Reagent
The Virotag® DY detection system is a ready-to-use, simple, and universal approach for virus quantification. This reagent is compatible with all enveloped viruses, with single or double-stranded DNA or RNA genome. This universal reagent is based on a dual strain approach that identifies intact virus particles by simultaneous detection of protein and nucleic acid signals. The use of fluorogenic dyes eliminates the need to wash.
- Universal detection method for enveloped viruses
- Detect and identify virus particles with a dual signal approach
- Ready-to-use reagent with a simple no-wash protocol
Related Assets
Rapid, Real Time Quantification of Lentivirus Particles Using Antibody-Based Detection on the Virus Counter® 3100 Platform
PDF | 113.4 KB
Meet the Virus Counter® Platform - Rapid, Direct, Biologically Relevant Virus Quantitation
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Rapid Total Particle Quantification for Viral Families With High Potential for Pathogenic Emergence
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