Pel-Freez Blog
Read more about the latest updates, how Pel-Freez products support research, and get helpful practical tips in our blog.
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Choose the right antibody-depleted human serum for your vaccine researchOne of our most popular offerings, double (IgG/IgM) depleted human serum, has been helping researchers perform vaccine development assays since 2017. Since then, we’ve...
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Baby Rabbit Complement: The Gold Standard for Functional Antibody AssaysBaby rabbit complement has long been the World Health Organization’s recommended standard complement option for functional antibody assays to evaluate vaccine efficacy. Pel-Freez Biologicals...
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Don’t waste your valuable sera samples!The high analytical error rate in immunoassays is well documented, estimated to range from 0.4% to 4.0%. These errors generate misleading or even false...
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Antibody Depleted Human Complement: We’ve Scaled Up Our Process!For decades Pel-Freez has been the largest US producer of rabbit blood fractions and rabbit complement. Our baby rabbit complement is used globally in...
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Tips for Antibody PurificationProtein A, G and L resins cover most antibodies. Where they fall short, and when NHS-activated or multimodal beads are the better route.
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Understanding the Clinical Significance of Immunoglobulin TestsWhat IgG, IgA and IgM are, how much of each is in normal serum, and what a raised or lowered level can point to.
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Understanding Immunoassay Development: Sourcing ReagentsThe seven steps from idea to validated immunoassay, and the blocking reagents, conjugates and stabilizers you will need a consistent source of along the...
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The Future of Antibodies in NeuroscienceAntibodies are the workhorse reagent of cellular and molecular neuroscience. A short look at how they are used today and where reproducibility and validation...
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Facts of Rabbit Complement: InfographicOver 25 proteins and protein fragments make up the complement system, including serum proteins, serosal proteins, and cell membrane receptors. They account for about...
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Importance of Human Serum: InfographicThe human serum is a circulating carrier of exogenous and endogenous liquids in the blood. It allows substances to stick to the molecules within...