In Vitro Diagnostic Reagents for IVD Assay Development
From early assay design through production, Pel-Freez helps in vitro diagnostic test developers reduce risk with reliable, well-characterized biological reagents. Our blood products, complement, sera, and tissues are known worldwide for quality and consistency.
Key applications we support
- Coagulation assays
- Serological testing
- Infectious disease testing
- Immunoassays and antigen detection
- Controls, stabilizers, and kit validation
Coagulation assays
With rabbits raised on our own US farms and a trusted supplier network, Pel-Freez is a reliable source of rabbit brain acetone powder, rabbit brain cephalin, and other biologicals for the development and manufacturing of in vitro coagulation assays.
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Serological testing
Pel-Freez offers a broad range of stocked and custom biological products that support serological IVD assay development. Use our materials as diluents or active components in tissue typing, autoimmune panels, metabolic testing, and more.
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Infectious disease testing
Our human and animal blood products support reliable, clinically relevant evaluation of immune responses or pathogen-associated indicators of disease. Large lot sizes and reservable inventory help maintain consistency across validation studies and product batches.
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Immunoassays and antigen detection
Reduce background and improve specificity with human IgG-, IgM-, and IgA-depleted sera. We also offer blocking sera, tissue extracts, and high-purity biological reagents from multiple species to support your EIA/RIA, ELISA, lateral flow, and other IVD assay development needs.
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Controls, stabilizers, and kit validation
Establish assay integrity and regulatory compliance with ethically sourced biological materials for use as positive and negative controls, matrix-matched samples, and lot-to-lot verification standards.
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Need a custom reagent for your kit?
We offer custom dissection/tissue procurement, antiserum, lyophilization, and other bioprocessing services. Our team follows strict QC processes to help you build reliable, scalable in vitro diagnostic testing protocols and kits.
Why IVD developers choose Pel-Freez
We help you build better tests with consistent reagents and a supply you can count on.
- Decades of experience supporting IVD assay development and production
- Trusted by leading CROs, biotech, and pharmaceutical labs
- Dependable performance driven by rigorous sourcing and QC standards
- Batch testing and lot reservation that reduce risk during validation
Results start with the right materials
Start your next project with the products and support trusted by scientific teams around the world.
What researchers say about Pel-Freez
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“Pel-Freez is our go-to provider of essential reagents such as Lyophilized Rabbit complement and immunoglobulin-depleted human serum. These quality products allow us to perform our in-house opsonophagocytic killing assay (OPK/OPA) and move rapidly on product development.”
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“Our clinical immunology laboratory has used Pel-Freez Universal Human Male AB Serum before and we have been very pleased with its performance, so we set it up as a long-term standing order.”
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“The Human AB Sera lot we purchased was excellent for our histocompatibility work because it was negative for HLA antibodies. I appreciate the customer service and we intend to be repeat customers.”
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“Pel-Freez goat IgG worked great in our assay, and being able to reserve the balance of a lot while we tested it made qualification straightforward.”
