CMV Quantitative PCR: DNA Extraction from Plasma for Viral Load Testing

Plasma is preferred for CMV qPCR because it contains cell-free viral DNA shed directly into the bloodstream, reducing background genomic DNA contamination. Plasma-based testing offers greater sensitivity and specificity for low-level viral detection, and is widely recommended by international guidelines for standardized CMV viral load monitoring in transplant and immunocompromised patient populations.

The OncoSeek cfDNA Extraction Kit requires as little as 1 mL of plasma per reaction — delivering 5–20× higher nucleic acid yield compared to competing kits that require 2 mL. This is especially valuable when working with pediatric patients or critically ill individuals where plasma volume is limited and sample conservation is essential.

Yes. Both kits are validated for compatibility with downstream qPCR and digital PCR (ddPCR) applications. The extracted nucleic acids meet the purity thresholds — A260/280 ratios of 1.8–2.0 — required for sensitive amplification-based assays, ensuring low inhibitor carryover and consistent performance across PCR platforms used in clinical and research settings.

The OncoSeek cfDNA Extraction Kit completes plasma DNA extraction in approximately 55 minutes, while the Cambrian Whole Blood gDNA Isolation Kit processes samples in under 30 minutes on-deck. Both workflows are designed to minimize manual handling steps, supporting labs that require rapid sample turnaround without compromising nucleic acid quality or yield.

Yes. Both kits support automated processing through Cambrian Bioworks' magnetic bead-based platform, eliminating batching pressure and enabling flexible throughput from a single sample up to 32 samples per run. Automation compatibility reduces operator variability, decreases the risk of cross-contamination, and is particularly beneficial for high-volume clinical diagnostic laboratories.

Cambrian Bioworks holds ISO 13485 certification for quality management in medical device manufacturing, and the CE-IVD mark under EU Regulation (EU) 2017/746 (IVDR) for in vitro diagnostic use. Additionally, the company holds CDSCO IVD certification for the Indian market. These certifications confirm that the kits meet clinical-grade standards required for diagnostic laboratory deployment.