Name: InstaTiter P24 Test Cassette
SKU: IT - P24
Availability: InStock

Product Overview

The Instanosis InstaTiter p24 Test Cassette is a patent-pending, first-of-its-kind lateral flow immunoassay engineered for the semi-quantitative estimation of lentiviral physical titers and HIV-1 p24 capsid protein concentrations in cell culture supernatants. Designed as a more efficient alternative to traditional multi-hour ELISA protocols, this advanced testing cassette delivers clear, reliable visual results in just 10 minutes. By enabling immediate point-of-use verification of viral vector presence and semi-quantitative titer, the InstaTiter cassette optimizes workflows across cell and gene therapy research, vector development, and downstream bioprocessing applications without requiring complex laboratory instrumentation.

Technical Specifications & Key Data

This specialized lateral flow cassette is optimized to deliver robust analytical performance across rigorous laboratory, research, and bioprocessing environments:

Target Analyte: p24 protein (HIV-based viral vector or virus-like particles physical titer).
Assay Architecture: Lateral flow immunoassay.
Analytical Sensitivity Window: The detection limit of the cassette is $10^4$ TU/mL, with a quantitative range extending up to $10^7$ TU/mL.
Sample Compatibility: Optimized for cell culture supernatants with or without FBS, viral harvest lysates, and purified vector suspensions prepared in common buffers such as PBS, Tris, and HEPES
Rapid Processing Time: Definitive qualitative or semi-quantitative visual lines mature completely within 10 minutes.
Regulatory Classification: For Laboratory Research Use Only (RUO). Not for use in diagnostic procedures.

Research & Bioprocessing Significance

In modern biopharmaceutical development and advanced virology frameworks, tracking viral vector assembly in real-time is vital for maintaining production efficiency.

ELISA Bottleneck Elimination: Standard p24 enzyme-linked immunosorbent assays require extensive washing stages, plate readers, and up to 4–6 hours of hands-on execution. The InstaTiter cassette provides an instant screening line, allowing researchers to make immediate downstream processing decisions.
Transduction Efficiency Optimization: Rapid determination of physical titers helps laboratory technicians estimate optimal Multiplicity of Infection (MOI) ratios quickly, ensuring consistent genetic transduction profiles in downstream cell lines.
Bioreactor Harvest Timing: Monitoring the accumulation of extracellular p24 antigens in cell culture media tells operators exactly when viral shedding peaks, preventing premature harvests or unnecessary degradation of vector lots inside the bioreactor.
No Hook Effect at High Concentrations: Unlike traditional sandwich lateral flow assays, the assay is not affected by the hook effect and therefore does not generate false-negative results at high analyte concentrations.

Frequently Asked Questions (FAQ)

Q1: What primary target does the InstaTiter p24 Test Cassette detect?

A: This rapid assay specifically targets the p24 protein, making it an ideal surrogate marker for estimating the physical titer of lentiviral vectors used in gene delivery and cell therapy engineering.

Q2: What is the analytical sensitivity or limit of detection (LOD) for this cassette?

A: The InstaTiter cassette is engineered for semi-quantitative measurement of titers bewteen $10^4$ TU/mL and $10^7$ TU/mL, allowing for reliable confirmation even in diluted supernatant samples.

Q3: How does this rapid test compare to a traditional p24 ELISA kit?

A: While a traditional ELISA provides a precise quantitative colorimetric profile over a 4-to-6-hour timeline, the InstaTiter cassette acts as a rapid semi-quantitative or qualitative screening tool that yields highly visible results in 10 minutes without equipment needs, drastically accelerating day-to-day workflow adjustments.

Q4: Can this product be used with crude cell culture supernatants, or must the sample be purified?

A: The cassette is specifically formulated to withstand the matrix complexities of crude cell culture supernatants (with or without FBS) and lysates, allowing operators to sample directly from a active bioreactor or culture flask without tedious pre-purification protocols.

Q5: Is the InstaTiter p24 Test Cassette cleared for clinical human diagnostics?

A: No. This product is strictly classified for Laboratory Research Use Only (RUO). It is engineered for vector titration, cell line development, and bioprocessing validation, and is not intended for use in clinical diagnostic workflows or patient evaluation.